YourPhone.ScreenMirroring.Managed Initializes a new instance of the class. This action launches the Android intent associated with the notification. It involves sending a message from PC to phone. Gets the number of frames in the animation. Gets the frame rate of the animation. Gets the duration of the animation. Converts a zero-based frame number to the corresponding progress value denoting the start of the frame. Returns a map from marker names to corresponding progress values. Sets the color property with the given name, or does nothing if no such property exists. Sets the scalar property with the given name, or does nothing if no such property exists. Gets the number of frames in the animation. Gets the frame rate of the animation. Gets the duration of the animation. Converts a zero-based frame number to the corresponding progress value denoting the start of the frame. Returns a map from marker names to corresponding progress values. Sets the color property with the given name, or does nothing if no such property exists. Sets the scalar property with the given name, or does nothing if no such property exists. PCAppDataTable manages the pcapp_data table and related queries. Returns all app metadata as a read-only list. Returns app metadata for a given package name. Returns app metadata for a given platform app ID. Inserts or updates a batch of app data entities in a transaction. Maps a row from the database to a PCAppDataEntity. Manages the phone_apps table and related queries. Returns the count of phone apps. Returns all phone apps ordered by name. Returns all favorite phone apps ordered by favorite rank. Returns phone apps for the given package names. Returns phone apps for the given app IDs. Returns a single phone app by package name. Returns a single phone app by app ID. Inserts or updates a batch of phone app entities. Inserts or updates a batch of phone app entities with IDs. Inserts or updates a batch of phone app entities without icons. Deletes phone apps by package names. Deletes phone apps by app IDs. Deletes phone apps where the ETag does not match. Updates the favorite rank for a phone app. Updates favorite ranks for a batch of phone apps. Removes a favorite for a phone app. Removes all favorites. Maps a row from the database to a PhoneAppEntity. Synchronizes the table with the given IDs and checksums. Manages the recent_apps table and related queries. Returns all recent apps with icons, ordered by recent_app_rank. Returns all recent apps, ordered by recent_app_rank. Returns a recent app by its app_id. Inserts or updates a batch of recent app entities. Deletes recent apps by package names. Deletes recent apps by app IDs. Clears all recent apps. Maps a row from the database to a RecentAppEntity. Synchronizes the table with the given IDs and checksums. InitializeComponent() Connect() GetBindingConnector(int connectionId, object target) InitializeComponent() UnloadObject(DependencyObject) Connect() DisconnectUnloadedObject(int connectionId) GetBindingConnector(int connectionId, object target) Class used to store JsonProperties, used in telemetry details Package Name Hosted apps capable PhoneScreen Stack Unification Capable Sends an Action Telemetry Event TelemetryEventName Correlation for the YP page Type of action being performed on the target The UI item that the action was perfomed on Name of the current page Name of the sub page Version of the page summary Details object Initializes a new instance of the class. Class used for telemetry related helper functions Measures telemetry start and stop Generates a new GUID to be used as a correlationId in telemetry string Merges previous Details with new Details as a JObject JObject Details JObject details The Dependency property backing the ViewModel property Gets or sets the viewmodel the chrome binds to. InitializeComponent() Connect() GetBindingConnector(int connectionId, object target) The Dependency property backing the ViewModel property Gets or sets the viewmodel the chrome binds to. InitializeComponent() UnloadObject(DependencyObject) Connect() DisconnectUnloadedObject(int connectionId) GetBindingConnector(int connectionId, object target) The Dependency property backing the ViewModel property Gets or sets the viewmodel the chrome binds to. InitializeComponent() Connect() GetBindingConnector(int connectionId, object target) The Dependency property backing the ViewModel property Gets or sets the viewmodel the chrome binds to. InitializeComponent() Connect() GetBindingConnector(int connectionId, object target) The Dependency property backing the ViewModel property Gets or sets the viewmodel the chrome binds to. The Dependency property backing the PadTitleBar property The Dependency property backing the VerticalContentShift property InitializeComponent() UnloadObject(DependencyObject) Connect() DisconnectUnloadedObject(int connectionId) GetBindingConnector(int connectionId, object target) InitializeComponent() Connect() GetBindingConnector(int connectionId, object target) Defines the source generated JSON serialization contract metadata for a given type. Defines the source generated JSON serialization contract metadata for a given type. Defines the source generated JSON serialization contract metadata for a given type. The default associated with a default instance. The source-generated options associated with this context. Defines the source generated JSON serialization contract metadata for a given type. Defines the source generated JSON serialization contract metadata for a given type. Defines the source generated JSON serialization contract metadata for a given type. Defines the source generated JSON serialization contract metadata for a given type. The default associated with a default instance. The source-generated options associated with this context. InitializeComponent() Connect() GetBindingConnector(int connectionId, object target) Main class for providing metadata for the app or library GetXamlType(Type) GetXamlType(String) GetXmlnsDefinitions() Contains a module initializer for generated CsWinRT projections. The module initializer registering the current assembly via . A pointer to a null-terminated, constant character string. A pointer to the first character in the string. The content should be considered readonly, as it was typed as constant in the SDK. Gets the number of characters up to the first null character (exclusive). Returns a with a copy of this character array, up to the first null character (exclusive). A , or if is . Returns a span of the characters in this string, up to the first null character (exclusive). Returns a span of the characters in this string, up to the first null character (exclusive). Defines the initialization parameters passed to the window procedure of an application. These members are identical to the parameters of the CreateWindowEx function. (Unicode) Because the lpszClass member can contain a pointer to a local (and thus inaccessible) atom, do not obtain the class name by using this member. Use the GetClassName function instead. You should access the data represented by the lpCreateParams member using a pointer that has been declared using the UNALIGNED type, because the pointer may not be DWORD aligned. This is demonstrated in the following example: This doc was truncated. Read more on docs.microsoft.com. Type: LPVOID Contains additional data which may be used to create the window. If the window is being created as a result of a call to the CreateWindow or CreateWindowEx function, this member contains the value of the lpParam parameter specified in the function call. If the window being created is a MDI client window, this member contains a pointer to a CLIENTCREATESTRUCT structure. If the window being created is a MDI child window, this member contains a pointer to an MDICREATESTRUCT structure. If the window is being created from a dialog template, this member is the address of a SHORT value that specifies the size, in bytes, of the window creation data. The value is immediately followed by the creation data. For more information, see the following Remarks section. Read more on docs.microsoft.com. Type: HINSTANCE A handle to the module that owns the new window. Read more on docs.microsoft.com. Type: HMENU A handle to the menu to be used by the new window. Read more on docs.microsoft.com. Type: HWND A handle to the parent window, if the window is a child window. If the window is owned, this member identifies the owner window. If the window is not a child or owned window, this member is NULL. Read more on docs.microsoft.com. Type: int The height of the new window, in pixels. Read more on docs.microsoft.com. Type: int The width of the new window, in pixels. Read more on docs.microsoft.com. Type: int The y-coordinate of the upper left corner of the new window. If the new window is a child window, coordinates are relative to the parent window. Otherwise, the coordinates are relative to the screen origin. Read more on docs.microsoft.com. Type: int The x-coordinate of the upper left corner of the new window. If the new window is a child window, coordinates are relative to the parent window. Otherwise, the coordinates are relative to the screen origin. Read more on docs.microsoft.com. Type: LPCTSTR The name of the new window. Read more on docs.microsoft.com. Type: LPCTSTR A pointer to a null-terminated string or an atom that specifies the class name of the new window. Read more on docs.microsoft.com. Type: DWORD The extended window style for the new window. For a list of possible values, see Extended Window Styles. Read more on docs.microsoft.com. Contains window class information. (Unicode) > [!NOTE] > The winuser.h header defines WNDCLASSEX as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see [Conventions for Function Prototypes](/windows/win32/intl/conventions-for-function-prototypes). Read more on docs.microsoft.com. Type: UINT The size, in bytes, of this structure. Set this member to sizeof(WNDCLASSEX). Be sure to set this member before calling the GetClassInfoEx function. Read more on docs.microsoft.com. Type: UINT The class style(s). This member can be any combination of the Class Styles. Read more on docs.microsoft.com. Type: WNDPROC A pointer to the window procedure. You must use the CallWindowProc function to call the window procedure. For more information, see WindowProc. Read more on docs.microsoft.com. Type: int The number of extra bytes to allocate following the window-class structure. The system initializes the bytes to zero. Read more on docs.microsoft.com. Type: int The number of extra bytes to allocate following the window instance. The system initializes the bytes to zero. If an application uses WNDCLASSEX to register a dialog box created by using the CLASS directive in the resource file, it must set this member to DLGWINDOWEXTRA. Read more on docs.microsoft.com. Type: HINSTANCE A handle to the instance that contains the window procedure for the class. Read more on docs.microsoft.com. Type: HICON A handle to the class icon. This member must be a handle to an icon resource. If this member is NULL, the system provides a default icon. Read more on docs.microsoft.com. Type: HCURSOR A handle to the class cursor. This member must be a handle to a cursor resource. If this member is NULL, an application must explicitly set the cursor shape whenever the mouse moves into the application's window. Read more on docs.microsoft.com. Type: HBRUSH A handle to the class background brush. This member can be a handle to the brush to be used for painting the background, or it can be a color value. A color value must be one of the following standard system colors (the value 1 must be added to the chosen color). If a color value is given, you must convert it to one of the following HBRUSH types: This doc was truncated. Read more on docs.microsoft.com. Type: LPCTSTR Pointer to a null-terminated character string that specifies the resource name of the class menu, as the name appears in the resource file. If you use an integer to identify the menu, use the MAKEINTRESOURCE macro. If this member is NULL, windows belonging to this class have no default menu. Read more on docs.microsoft.com. Type: LPCTSTR A pointer to a null-terminated string or is an atom. If this parameter is an atom, it must be a class atom created by a previous call to the RegisterClass or RegisterClassEx function. The atom must be in the low-order word of lpszClassName; the high-order word must be zero. If lpszClassName is a string, it specifies the window class name. The class name can be any name registered with RegisterClass or RegisterClassEx, or any of the predefined control-class names. The maximum length for lpszClassName is 256. If lpszClassName is greater than the maximum length, the RegisterClassEx function will fail. Read more on docs.microsoft.com. Type: HICON A handle to a small icon that is associated with the window class. If this member is NULL, the system searches the icon resource specified by the hIcon member for an icon of the appropriate size to use as the small icon. Read more on docs.microsoft.com. Represents a Win32 handle that can be closed with . Represents a Win32 handle that can be closed with . Contains extern methods from "GDI32.dll". Contains extern methods from "KERNEL32.dll". Contains extern methods from "USER32.dll". Sent prior to the WM\_CREATE message when a window is first created. Type: **LRESULT** If an application processes this message, it should return **TRUE** to continue creation of the window. If the application returns **FALSE**, the [**CreateWindow**](/windows/win32/api/winuser/nf-winuser-createwindowa) or [**CreateWindowEx**](/windows/win32/api/winuser/nf-winuser-createwindowexa) function will return a **NULL** handle. Learn more about this API from docs.microsoft.com. Notifies a window that its nonclient area is being destroyed. The DestroyWindow function sends the WM\_NCDESTROY message to the window following the WM\_DESTROY message. Type: **LRESULT** If an application processes this message, it should return zero. This message frees any memory internally allocated for the window. Sent when the contents of the clipboard have changed. If an application processes this message, it should return zero. To register a window to receive this message, use the [**AddClipboardFormatListener**](/windows/desktop/api/Winuser/nf-winuser-addclipboardformatlistener) function. Sent when a window is being destroyed. It is sent to the window procedure of the window being destroyed after the window is removed from the screen. Type: **LRESULT** If an application processes this message, it should return zero. If the window being destroyed is part of the clipboard viewer chain (set by calling the [**SetClipboardViewer**](/windows/win32/api/winuser/nf-winuser-setclipboardviewer) function), the window must remove itself from the chain by processing the [**ChangeClipboardChain**](/windows/win32/api/winuser/nf-winuser-changeclipboardchain) function before returning from the **WM\_DESTROY** message. Sent as a signal that a window or an application should terminate. Type: **LRESULT** If an application processes this message, it should return zero. An application can prompt the user for confirmation, prior to destroying a window, by processing the **WM\_CLOSE** message and calling the [**DestroyWindow**](/windows/win32/api/winuser/nf-winuser-destroywindow) function only if the user confirms the choice. By default, the [**DefWindowProc**](/windows/desktop/api/winuser/nf-winuser-defwindowproca) function calls the [**DestroyWindow**](/windows/win32/api/winuser/nf-winuser-destroywindow) function to destroy the window. Read more on docs.microsoft.com. The DeleteObject function deletes a logical pen, brush, font, bitmap, region, or palette, freeing all system resources associated with the object. After the object is deleted, the specified handle is no longer valid. A handle to a logical pen, brush, font, bitmap, region, or palette. If the function succeeds, the return value is nonzero. If the specified handle is not valid or is currently selected into a DC, the return value is zero. Do not delete a drawing object (pen or brush) while it is still selected into a DC. When a pattern brush is deleted, the bitmap associated with the brush is not deleted. The bitmap must be deleted independently. Read more on docs.microsoft.com. Closes an open object handle. A valid handle to an open object. If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError. If the application is running under a debugger, the function will throw an exception if it receives either a handle value that is not valid or a pseudo-handle value. This can happen if you close a handle twice, or if you call CloseHandle on a handle returned by the FindFirstFile function instead of calling the FindClose function. The CloseHandle function closes handles to the following objects: This doc was truncated. Read more on docs.microsoft.com. Frees the loaded dynamic-link library (DLL) module and, if necessary, decrements its reference count. A handle to the loaded library module. The LoadLibrary, LoadLibraryEx, GetModuleHandle, or GetModuleHandleEx function returns this handle. Read more on docs.microsoft.com. If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call the GetLastError function. The system maintains a per-process reference count for each loaded module. A module that was loaded at process initialization due to load-time dynamic linking has a reference count of one. The reference count for a module is incremented each time the module is loaded by a call to LoadLibrary. The reference count is also incremented by a call to LoadLibraryEx unless the module is being loaded for the first time and is being loaded as a data or image file. The reference count is decremented each time the FreeLibrary or FreeLibraryAndExitThread function is called for the module. When a module's reference count reaches zero or the process terminates, the system unloads the module from the address space of the process. Before unloading a library module, the system enables the module to detach from the process by calling the module's DllMain function, if it has one, with the DLL_PROCESS_DETACH value. Doing so gives the library module an opportunity to clean up resources allocated on behalf of the current process. After the entry-point function returns, the library module is removed from the address space of the current process. It is not safe to call FreeLibrary from DllMain. For more information, see the Remarks section in DllMain. Calling FreeLibrary does not affect other processes that are using the same module. Use caution when calling FreeLibrary with a handle returned by GetModuleHandle. The GetModuleHandle function does not increment a module's reference count, so passing this handle to FreeLibrary can cause a module to be unloaded prematurely. A thread that must unload the DLL in which it is executing and then terminate itself should call FreeLibraryAndExitThread instead of calling FreeLibrary and ExitThread separately. Otherwise, a race condition can occur. For details, see the Remarks section of FreeLibraryAndExitThread. Read more on docs.microsoft.com. Retrieves a module handle for the specified module. The module must have been loaded by the calling process. (Unicode) The name of the loaded module (either a .dll or .exe file). If the file name extension is omitted, the default library extension .dll is appended. The file name string can include a trailing point character (.) to indicate that the module name has no extension. The string does not have to specify a path. When specifying a path, be sure to use backslashes (\\), not forward slashes (/). The name is compared (case independently) to the names of modules currently mapped into the address space of the calling process. If this parameter is NULL, GetModuleHandle returns a handle to the file used to create the calling process (.exe file). The GetModuleHandle function does not retrieve handles for modules that were loaded using the LOAD_LIBRARY_AS_DATAFILE flag. For more information, see LoadLibraryEx. Read more on docs.microsoft.com. If the function succeeds, the return value is a handle to the specified module. If the function fails, the return value is NULL. To get extended error information, call GetLastError. The returned handle is not global or inheritable. It cannot be duplicated or used by another process. If lpModuleName does not include a path and there is more than one loaded module with the same base name and extension, you cannot predict which module handle will be returned. To work around this problem, you could specify a path, use side-by-side assemblies, or use GetModuleHandleEx to specify a memory location rather than a DLL name. The GetModuleHandle function returns a handle to a mapped module without incrementing its reference count. However, if this handle is passed to the FreeLibrary function, the reference count of the mapped module will be decremented. Therefore, do not pass a handle returned by GetModuleHandle to the FreeLibrary function. Doing so can cause a DLL module to be unmapped prematurely. This function must be used carefully in a multithreaded application. There is no guarantee that the module handle remains valid between the time this function returns the handle and the time it is used. For example, suppose that a thread retrieves a module handle, but before it uses the handle, a second thread frees the module. If the system loads another module, it could reuse the module handle that was recently freed. Therefore, the first thread would have a handle to a different module than the one intended. Read more on docs.microsoft.com. Frees the specified global memory object and invalidates its handle. A handle to the global memory object. This handle is returned by either the GlobalAlloc or GlobalReAlloc function. It is not safe to free memory allocated with LocalAlloc. Read more on docs.microsoft.com. If the function succeeds, the return value is NULL. If the function fails, the return value is equal to a handle to the global memory object. To get extended error information, call GetLastError. If the process examines or modifies the memory after it has been freed, heap corruption may occur or an access violation exception (EXCEPTION_ACCESS_VIOLATION) may be generated. The GlobalFree function will free a locked memory object. A locked memory object has a lock count greater than zero. The GlobalLock function locks a global memory object and increments the lock count by one. The GlobalUnlock function unlocks it and decrements the lock count by one. To get the lock count of a global memory object, use the GlobalFlags function. If an application is running under a debug version of the system, GlobalFree will issue a message that tells you that a locked object is being freed. If you are debugging the application, GlobalFree will enter a breakpoint just before freeing a locked object. This allows you to verify the intended behavior, then continue execution. Read more on docs.microsoft.com. Allocates the specified number of bytes from the heap. (GlobalAlloc) The number of bytes to allocate. If this parameter is zero and the uFlags parameter specifies GMEM_MOVEABLE, the function returns a handle to a memory object that is marked as discarded. If the function succeeds, the return value is a handle to the newly allocated memory object. If the function fails, the return value is NULL. To get extended error information, call GetLastError. Windows memory management does not provide a separate local heap and global heap. Therefore, the GlobalAlloc and LocalAlloc functions are essentially the same. The movable-memory flags GHND and GMEM_MOVABLE add unnecessary overhead and require locking to be used safely. They should be avoided unless documentation specifically states that they should be used. New applications should use the heap functions to allocate and manage memory unless the documentation specifically states that a global function should be used. For example, the global functions are still used with Dynamic Data Exchange (DDE), the clipboard functions, and OLE data objects. If the GlobalAlloc function succeeds, it allocates at least the amount of memory requested. If the actual amount allocated is greater than the amount requested, the process can use the entire amount. To determine the actual number of bytes allocated, use the GlobalSize function. If the heap does not contain sufficient free space to satisfy the request, GlobalAlloc returns NULL. Because NULL is used to indicate an error, virtual address zero is never allocated. It is, therefore, easy to detect the use of a NULL pointer. Memory allocated with this function is guaranteed to be aligned on an 8-byte boundary. To execute dynamically generated code, use the VirtualAlloc function to allocate memory and the VirtualProtect function to grant PAGE_EXECUTE access. To free the memory, use the GlobalFree function. It is not safe to free memory allocated with GlobalAlloc using LocalFree. Read more on docs.microsoft.com. Locks a global memory object and returns a pointer to the first byte of the object's memory block. A handle to the global memory object. This handle is returned by either the GlobalAlloc or GlobalReAlloc function. Read more on docs.microsoft.com. If the function succeeds, the return value is a pointer to the first byte of the memory block. If the function fails, the return value is NULL. To get extended error information, call GetLastError. The internal data structures for each memory object include a lock count that is initially zero. For movable memory objects, GlobalLock increments the count by one, and the GlobalUnlock function decrements the count by one. Each successful call that a process makes to GlobalLock for an object must be matched by a corresponding call to GlobalUnlock. Locked memory will not be moved or discarded, unless the memory object is reallocated by using the GlobalReAlloc function. The memory block of a locked memory object remains locked until its lock count is decremented to zero, at which time it can be moved or discarded. Memory objects allocated with GMEM_FIXED always have a lock count of zero. For these objects, the value of the returned pointer is equal to the value of the specified handle. If the specified memory block has been discarded or if the memory block has a zero-byte size, this function returns NULL. Discarded objects always have a lock count of zero. Read more on docs.microsoft.com. Decrements the lock count associated with a memory object that was allocated with GMEM_MOVEABLE. A handle to the global memory object. This handle is returned by either the GlobalAlloc or GlobalReAlloc function. Read more on docs.microsoft.com. If the memory object is still locked after decrementing the lock count, the return value is a nonzero value. If the memory object is unlocked after decrementing the lock count, the function returns zero and GetLastError returns NO_ERROR. If the function fails, the return value is zero and GetLastError returns a value other than NO_ERROR. The internal data structures for each memory object include a lock count that is initially zero. For movable memory objects, the GlobalLock function increments the count by one, and GlobalUnlock decrements the count by one. For each call that a process makes to GlobalLock for an object, it must eventually call GlobalUnlock. Locked memory will not be moved or discarded, unless the memory object is reallocated by using the GlobalReAlloc function. The memory block of a locked memory object remains locked until its lock count is decremented to zero, at which time it can be moved or discarded. Memory objects allocated with GMEM_FIXED always have a lock count of zero. If the specified memory block is fixed memory, this function returns TRUE. If the memory object is already unlocked, GlobalUnlock returns FALSE and GetLastError reports ERROR_NOT_LOCKED. A process should not rely on the return value to determine the number of times it must subsequently call GlobalUnlock for a memory object. Read more on docs.microsoft.com. Opens the clipboard for examination and prevents other applications from modifying the clipboard content. Type: HWND A handle to the window to be associated with the open clipboard. If this parameter is NULL, the open clipboard is associated with the current task. Read more on docs.microsoft.com. Type: BOOL If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError. OpenClipboard fails if another window has the clipboard open. An application should call the CloseClipboard function after every successful call to OpenClipboard. The window identified by the hWndNewOwner parameter does not become the clipboard owner unless the EmptyClipboard function is called. If an application calls OpenClipboard with hwnd set to NULL, EmptyClipboard sets the clipboard owner to NULL; this causes SetClipboardData to fail. Read more on docs.microsoft.com. Closes the clipboard. Type: BOOL If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError. When the window has finished examining or changing the clipboard, close the clipboard by calling CloseClipboard. This enables other windows to access the clipboard. Do not place an object on the clipboard after calling CloseClipboard. Read more on docs.microsoft.com. Empties the clipboard and frees handles to data in the clipboard. The function then assigns ownership of the clipboard to the window that currently has the clipboard open. Type: BOOL If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError. Before calling EmptyClipboard, an application must open the clipboard by using the OpenClipboard function. If the application specifies a NULL window handle when opening the clipboard, EmptyClipboard succeeds but sets the clipboard owner to NULL. Note that this causes SetClipboardData to fail. Retrieves a handle to a window whose class name and window name match the specified strings. The function searches child windows, beginning with the one following the specified child window. This function does not perform a case-sensitive search. (Unicode) Type: HWND A handle to the parent window whose child windows are to be searched. If hwndParent is NULL, the function uses the desktop window as the parent window. The function searches among windows that are child windows of the desktop. If hwndParent is HWND_MESSAGE, the function searches all message-only windows. Read more on docs.microsoft.com. Type: HWND A handle to a child window. The search begins with the next child window in the Z order. The child window must be a direct child window of hwndParent, not just a descendant window. If hwndChildAfter is NULL, the search begins with the first child window of hwndParent. Note that if both hwndParent and hwndChildAfter are NULL, the function searches all top-level and message-only windows. Read more on docs.microsoft.com. Type: LPCTSTR The class name or a class atom created by a previous call to the RegisterClass or RegisterClassEx function. The atom must be placed in the low-order word of lpszClass; the high-order word must be zero. If lpszClass is a string, it specifies the window class name. The class name can be any name registered with RegisterClass or RegisterClassEx, or any of the predefined control-class names, or it can be MAKEINTATOM(0x8000). In this latter case, 0x8000 is the atom for a menu class. For more information, see the Remarks section of this topic. Read more on docs.microsoft.com. Type: LPCTSTR The window name (the window's title). If this parameter is NULL, all window names match. Read more on docs.microsoft.com. Type: HWND If the function succeeds, the return value is a handle to the window that has the specified class and window names. If the function fails, the return value is NULL. To get extended error information, call GetLastError. The FindWindowEx function searches only direct child windows. It does not search other descendants. If the lpszWindow parameter is not NULL, FindWindowEx calls the GetWindowText function to retrieve the window name for comparison. For a description of a potential problem that can arise, see the Remarks section of GetWindowText. An application can call this function in the following way. FindWindowEx( NULL, NULL, MAKEINTATOM(0x8000), NULL ); Note that 0x8000 is the atom for a menu class. When an application calls this function, the function checks whether a context menu is being displayed that the application created. > [!NOTE] > The winuser.h header defines FindWindowEx as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see [Conventions for Function Prototypes](/windows/win32/intl/conventions-for-function-prototypes). Read more on docs.microsoft.com. Destroys the specified menu and frees any memory that the menu occupies. Type: HMENU A handle to the menu to be destroyed. Read more on docs.microsoft.com. Type: BOOL If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError. Before closing, an application must use the DestroyMenu function to destroy a menu not assigned to a window. A menu that is assigned to a window is automatically destroyed when the application closes. DestroyMenu is recursive, that is, it will destroy the menu and all its submenus. Read more on docs.microsoft.com. Creates an overlapped, pop-up, or child window with an extended window style; otherwise, this function is identical to the CreateWindow function. (Unicode) Type: DWORD The extended window style of the window being created. For a list of possible values, see Extended Window Styles. Read more on docs.microsoft.com. Type: LPCTSTR A null-terminated string or a class atom created by a previous call to the RegisterClass or RegisterClassEx function. The atom must be in the low-order word of lpClassName; the high-order word must be zero. If lpClassName is a string, it specifies the window class name. The class name can be any name registered with RegisterClass or RegisterClassEx, provided that the module that registers the class is also the module that creates the window. The class name can also be any of the predefined system class names. Read more on docs.microsoft.com. Type: LPCTSTR The window name. If the window style specifies a title bar, the window title pointed to by lpWindowName is displayed in the title bar. When using CreateWindow to create controls, such as buttons, check boxes, and static controls, use lpWindowName to specify the text of the control. When creating a static control with the SS_ICON style, use lpWindowName to specify the icon name or identifier. To specify an identifier, use the syntax "#num". Read more on docs.microsoft.com. Type: DWORD The style of the window being created. This parameter can be a combination of the window style values, plus the control styles indicated in the Remarks section. Read more on docs.microsoft.com. Type: int The initial horizontal position of the window. For an overlapped or pop-up window, the x parameter is the initial x-coordinate of the window's upper-left corner, in screen coordinates. For a child window, x is the x-coordinate of the upper-left corner of the window relative to the upper-left corner of the parent window's client area. If x is set to CW_USEDEFAULT, the system selects the default position for the window's upper-left corner and ignores the y parameter. CW_USEDEFAULT is valid only for overlapped windows; if it is specified for a pop-up or child window, the x and y parameters are set to zero. Read more on docs.microsoft.com. Type: int The initial vertical position of the window. For an overlapped or pop-up window, the y parameter is the initial y-coordinate of the window's upper-left corner, in screen coordinates. For a child window, y is the initial y-coordinate of the upper-left corner of the child window relative to the upper-left corner of the parent window's client area. For a list box y is the initial y-coordinate of the upper-left corner of the list box's client area relative to the upper-left corner of the parent window's client area. If an overlapped window is created with the WS_VISIBLE style bit set and the x parameter is set to CW_USEDEFAULT, then the y parameter determines how the window is shown. If the y parameter is CW_USEDEFAULT, then the window manager calls ShowWindow with the SW_SHOW flag after the window has been created. If the y parameter is some other value, then the window manager calls ShowWindow with that value as the nCmdShow parameter. Read more on docs.microsoft.com. Type: int The width, in device units, of the window. For overlapped windows, nWidth is the window's width, in screen coordinates, or CW_USEDEFAULT. If nWidth is CW_USEDEFAULT, the system selects a default width and height for the window; the default width extends from the initial x-coordinates to the right edge of the screen; the default height extends from the initial y-coordinate to the top of the icon area. CW_USEDEFAULT is valid only for overlapped windows; if CW_USEDEFAULT is specified for a pop-up or child window, the nWidth and nHeight parameter are set to zero. Read more on docs.microsoft.com. Type: int The height, in device units, of the window. For overlapped windows, nHeight is the window's height, in screen coordinates. If the nWidth parameter is set to CW_USEDEFAULT, the system ignores nHeight. Read more on docs.microsoft.com. Type: HWND A handle to the parent or owner window of the window being created. To create a child window or an owned window, supply a valid window handle. This parameter is optional for pop-up windows. To create a message-only window, supply HWND_MESSAGE or a handle to an existing message-only window. Read more on docs.microsoft.com. Type: HMENU A handle to a menu, or specifies a child-window identifier, depending on the window style. For an overlapped or pop-up window, hMenu identifies the menu to be used with the window; it can be NULL if the class menu is to be used. For a child window, hMenu specifies the child-window identifier, an integer value used by a dialog box control to notify its parent about events. The application determines the child-window identifier; it must be unique for all child windows with the same parent window. Read more on docs.microsoft.com. Type: HINSTANCE A handle to the instance of the module to be associated with the window. Read more on docs.microsoft.com. Type: LPVOID Pointer to a value to be passed to the window through the CREATESTRUCT structure (lpCreateParams member) pointed to by the lParam param of the WM_CREATE message. This message is sent to the created window by this function before it returns. If an application calls CreateWindow to create a MDI client window, lpParam should point to a CLIENTCREATESTRUCT structure. If an MDI client window calls CreateWindow to create an MDI child window, lpParam should point to a MDICREATESTRUCT structure. lpParam may be NULL if no additional data is needed. Read more on docs.microsoft.com. Type: HWND If the function succeeds, the return value is a handle to the new window. If the function fails, the return value is NULL. To get extended error information, call GetLastError. This function typically fails for one of the following reasons: This doc was truncated. The CreateWindowEx function sends WM_NCCREATE, WM_NCCALCSIZE, and WM_CREATE messages to the window being created. If the created window is a child window, its default position is at the bottom of the Z-order. If the created window is a top-level window, its default position is at the top of the Z-order (but beneath all topmost windows unless the created window is itself topmost). For information on controlling whether the Taskbar displays a button for the created window, see Managing Taskbar Buttons. For information on removing a window, see the DestroyWindow function. The following predefined control classes can be specified in the lpClassName parameter. Note the corresponding control styles you can use in the dwStyle parameter. This doc was truncated. Read more on docs.microsoft.com. Destroys the specified window. Type: HWND A handle to the window to be destroyed. Read more on docs.microsoft.com. Type: BOOL If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError. A thread cannot use DestroyWindow to destroy a window created by a different thread. If the window being destroyed is a child window that does not have the WS_EX_NOPARENTNOTIFY style, a WM_PARENTNOTIFY message is sent to the parent. Read more on docs.microsoft.com. Destroys an icon and frees any memory the icon occupied. Type: HICON A handle to the icon to be destroyed. The icon must not be in use. Read more on docs.microsoft.com. Type: BOOL If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError. It is only necessary to call DestroyIcon for icons and cursors created with the following functions: CreateIconFromResourceEx (if called without the LR_SHARED flag), CreateIconIndirect, and CopyIcon. Do not use this function to destroy a shared icon. A shared icon is valid as long as the module from which it was loaded remains in memory. The following functions obtain a shared icon. This doc was truncated. Read more on docs.microsoft.com. Destroys a cursor and frees any memory the cursor occupied. Do not use this function to destroy a shared cursor. Type: HCURSOR A handle to the cursor to be destroyed. The cursor must not be in use. Read more on docs.microsoft.com. Type: BOOL If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError. The DestroyCursor function destroys a nonshared cursor. Do not use this function to destroy a shared cursor. A shared cursor is valid as long as the module from which it was loaded remains in memory. The following functions obtain a shared cursor: This doc was truncated. Read more on docs.microsoft.com. Registers a window class for subsequent use in calls to the CreateWindow or CreateWindowEx function. (RegisterClassExW) Type: ATOM If the function succeeds, the return value is a class atom that uniquely identifies the class being registered. This atom can only be used by the CreateWindow, CreateWindowEx, GetClassInfo, GetClassInfoEx, FindWindow, FindWindowEx, and UnregisterClass functions and the IActiveIMMap::FilterClientWindows method. If the function fails, the return value is zero. To get extended error information, call GetLastError. If you register the window class by using RegisterClassExA, the application tells the system that the windows of the created class expect messages with text or character parameters to use the ANSI character set; if you register it by using RegisterClassExW, the application requests that the system pass text parameters of messages as Unicode. The IsWindowUnicode function enables applications to query the nature of each window. For more information on ANSI and Unicode functions, see Conventions for Function Prototypes. All window classes that an application registers are unregistered when it terminates. No window classes registered by a DLL are unregistered when the DLL is unloaded. A DLL must explicitly unregister its classes when it is unloaded. Read more on docs.microsoft.com. Unregisters a window class, freeing the memory required for the class. (Unicode) Type: LPCTSTR A null-terminated string or a class atom. If lpClassName is a string, it specifies the window class name. This class name must have been registered by a previous call to the RegisterClass or RegisterClassEx function. System classes, such as dialog box controls, cannot be unregistered. If this parameter is an atom, it must be a class atom created by a previous call to the RegisterClass or RegisterClassEx function. The atom must be in the low-order word of lpClassName; the high-order word must be zero. Read more on docs.microsoft.com. Type: HINSTANCE A handle to the instance of the module that created the class. Read more on docs.microsoft.com. Type: BOOL If the function succeeds, the return value is nonzero. If the class could not be found or if a window still exists that was created with the class, the return value is zero. To get extended error information, call GetLastError. Before calling this function, an application must destroy all windows created with the specified class. All window classes that an application registers are unregistered when it terminates. Class atoms are special atoms returned only by RegisterClass and RegisterClassEx. No window classes registered by a DLL are unregistered when the .dll is unloaded. > [!NOTE] > The winuser.h header defines UnregisterClass as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see [Conventions for Function Prototypes](/windows/win32/intl/conventions-for-function-prototypes). Read more on docs.microsoft.com. Places (posts) a message in the message queue associated with the thread that created the specified window and returns without waiting for the thread to process the message. (Unicode) Type: HWND A handle to the window whose window procedure is to receive the message. The following values have special meanings. This doc was truncated. Read more on docs.microsoft.com. Type: UINT The message to be posted. For lists of the system-provided messages, see System-Defined Messages. Read more on docs.microsoft.com. Type: WPARAM Additional message-specific information. Read more on docs.microsoft.com. Type: LPARAM Additional message-specific information. Read more on docs.microsoft.com. Type: BOOL If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError. When a message is blocked by UIPI the last error, retrieved with GetLastError, is set to 5 (access denied). Messages in a message queue are retrieved by calls to the GetMessage or PeekMessage function. Applications that need to communicate using HWND_BROADCAST should use the RegisterWindowMessage function to obtain a unique message for inter-application communication. The system only does marshalling for system messages (those in the range 0 to (WM_USER-1)). To send other messages (those >= WM_USER) to another process, you must do custom marshalling. If you send a message in the range below WM_USER to the asynchronous message functions (PostMessage, SendNotifyMessage, and SendMessageCallback), its message parameters cannot include pointers. Otherwise, the operation will fail. The functions will return before the receiving thread has had a chance to process the message and the sender will free the memory before it is used. Do not post the WM_QUIT message using PostMessage; use the PostQuitMessage function. An accessibility application can use PostMessage to post WM_APPCOMMAND messages to the shell to launch applications. This functionality is not guaranteed to work for other types of applications. There is a limit of 10,000 posted messages per message queue. This limit should be sufficiently large. If your application exceeds the limit, it should be redesigned to avoid consuming so many system resources. To adjust this limit, modify the following registry key. 
HKEY_LOCAL_MACHINE SOFTWARE Microsoft Windows NT CurrentVersion Windows USERPostMessageLimit
If the function fails, call GetLastError to get extended error information. GetLastError returns ERROR_NOT_ENOUGH_QUOTA when the limit is hit. The minimum acceptable value is 4000. Read more on docs.microsoft.com. Calls the default window procedure to provide default processing for any window messages that an application does not process. (Unicode) Type: HWND A handle to the window procedure that received the message. Read more on docs.microsoft.com. Type: UINT The message. Read more on docs.microsoft.com. Type: WPARAM Additional message information. The content of this parameter depends on the value of the Msg parameter. Read more on docs.microsoft.com. Type: LPARAM Additional message information. The content of this parameter depends on the value of the Msg parameter. Read more on docs.microsoft.com. Type: LRESULT The return value is the result of the message processing and depends on the message. > [!NOTE] > The winuser.h header defines DefWindowProc as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see [Conventions for Function Prototypes](/windows/win32/intl/conventions-for-function-prototypes). Read more on docs.microsoft.com. Places data on the clipboard in a specified clipboard format. Type: UINT The clipboard format. This parameter can be a registered format or any of the standard clipboard formats. For more information, see Standard Clipboard Formats and Registered Clipboard Formats. Read more on docs.microsoft.com. Type: HANDLE A handle to the data in the specified format. This parameter can be NULL, indicating that the window provides data in the specified clipboard format (renders the format) upon request; this is known as [delayed rendering](/windows/win32/dataxchg/clipboard-operations#delayed-rendering). If a window delays rendering, it must process the [WM_RENDERFORMAT](/windows/win32/dataxchg/wm-renderformat) and [WM_RENDERALLFORMATS](/windows/win32/dataxchg/wm-renderallformats) messages. If SetClipboardData succeeds, the system owns the object identified by the hMem parameter. The application may not write to or free the data once ownership has been transferred to the system, but it can lock and read from the data until the CloseClipboard function is called. (The memory must be unlocked before the Clipboard is closed.) If the hMem parameter identifies a memory object, the object must have been allocated using the function with the GMEM_MOVEABLE flag. Read more on docs.microsoft.com. Type: HANDLE If the function succeeds, the return value is the handle to the data. If the function fails, the return value is NULL. To get extended error information, call GetLastError. Windows 8: Bitmaps to be shared with Windows Store app apps must be in the CF_BITMAP format (device-dependent bitmap). If an application calls SetClipboardData in response to WM_RENDERFORMAT or WM_RENDERALLFORMATS, the application should not use the handle after SetClipboardData has been called. If an application calls OpenClipboard with hwnd set to NULL, EmptyClipboard sets the clipboard owner to NULL; this causes SetClipboardData to fail. The system performs implicit data format conversions between certain clipboard formats when an application calls the GetClipboardData function. For example, if the CF_OEMTEXT format is on the clipboard, a window can retrieve data in the CF_TEXT format. The format on the clipboard is converted to the requested format on demand. For more information, see Synthesized Clipboard Formats. Read more on docs.microsoft.com. Creates a new image (icon, cursor, or bitmap) and copies the attributes of the specified image to the new one. If necessary, the function stretches the bits to fit the desired size of the new image. Type: HANDLE A handle to the image to be copied. Read more on docs.microsoft.com. Type: UINT Type: int The desired width, in pixels, of the image. If this is zero, then the returned image will have the same width as the original hImage. Read more on docs.microsoft.com. Type: int The desired height, in pixels, of the image. If this is zero, then the returned image will have the same height as the original hImage. Read more on docs.microsoft.com. Type: UINT Type: HANDLE If the function succeeds, the return value is the handle to the newly created image. If the function fails, the return value is NULL. To get extended error information, call GetLastError. When you are finished using the resource, you can release its associated memory by calling one of the functions in the following table. This doc was truncated. Read more on docs.microsoft.com. Enumerates the data formats currently available on the clipboard. Type: UINT A clipboard format that is known to be available. To start an enumeration of clipboard formats, set format to zero. When format is zero, the function retrieves the first available clipboard format. For subsequent calls during an enumeration, set format to the result of the previous EnumClipboardFormats call. Read more on docs.microsoft.com. Type: UINT If the function succeeds, the return value is the clipboard format that follows the specified format, namely the next available clipboard format. If the function fails, the return value is zero. To get extended error information, call GetLastError. If the clipboard is not open, the function fails. If there are no more clipboard formats to enumerate, the return value is zero. In this case, the GetLastError function returns the value ERROR_SUCCESS. This lets you distinguish between function failure and the end of enumeration. You must open the clipboard before enumerating its formats. Use the OpenClipboard function to open the clipboard. The EnumClipboardFormats function fails if the clipboard is not open. The EnumClipboardFormats function enumerates formats in the order that they were placed on the clipboard. If you are copying information to the clipboard, add clipboard objects in order from the most descriptive clipboard format to the least descriptive clipboard format. If you are pasting information from the clipboard, retrieve the first clipboard format that you can handle. That will be the most descriptive clipboard format that you can handle. The system provides automatic type conversions for certain clipboard formats. In the case of such a format, this function enumerates the specified format, then enumerates the formats to which it can be converted. For more information, see Standard Clipboard Formats and Synthesized Clipboard Formats. Read more on docs.microsoft.com. Retrieves from the clipboard the name of the specified registered format. The function copies the name to the specified buffer. (Unicode) Type: UINT The type of format to be retrieved. This parameter must not specify any of the predefined clipboard formats. Read more on docs.microsoft.com. Type: LPTSTR The buffer that is to receive the format name. Read more on docs.microsoft.com. Type: int The maximum length, in characters, of the string to be copied to the buffer. If the name exceeds this limit, it is truncated. Read more on docs.microsoft.com. Type: int If the function succeeds, the return value is the length, in characters, of the string copied to the buffer. If the function fails, the return value is zero, indicating that the requested format does not exist or is predefined. To get extended error information, call GetLastError.

Security Considerations

Using this function incorrectly might compromise the security of your program. For example, miscalculating the proper size of the lpszFormatName buffer, especially when the application is used in both ANSI and Unicode versions, can cause a buffer overflow. Also, note that the string is truncated if it is longer than the cchMaxCount parameter, which can lead to loss of information. Read more on docs.microsoft.com. Registers a new clipboard format. This format can then be used as a valid clipboard format. (Unicode) Type: LPCTSTR The name of the new format. Read more on docs.microsoft.com. Type: UINT If the function succeeds, the return value identifies the registered clipboard format. If the function fails, the return value is zero. To get extended error information, call GetLastError. If a registered format with the specified name already exists, a new format is not registered and the return value identifies the existing format. This enables more than one application to copy and paste data using the same registered clipboard format. Note that the format name comparison is case-insensitive. Registered clipboard formats are identified by values in the range 0xC000 through 0xFFFF. When registered clipboard formats are placed on or retrieved from the clipboard, they must be in the form of an HGLOBAL value. Read more on docs.microsoft.com. Retrieves the window handle of the current owner of the clipboard. Type: HWND If the function succeeds, the return value is the handle to the window that owns the clipboard. If the clipboard is not owned, the return value is NULL. To get extended error information, call GetLastError. The clipboard can still contain data even if the clipboard is not currently owned. In general, the clipboard owner is the window that last placed data in clipboard. The EmptyClipboard function assigns clipboard ownership. Read more on docs.microsoft.com. Determines whether the clipboard contains data in the specified format. Type: UINT A standard or registered clipboard format. For a description of the standard clipboard formats, see Standard Clipboard Formats . Read more on docs.microsoft.com. Type: BOOL If the clipboard format is available, the return value is nonzero. If the clipboard format is not available, the return value is zero. To get extended error information, call GetLastError. Typically, an application that recognizes only one clipboard format would call this function when processing the WM_INITMENU or WM_INITMENUPOPUP message. The application would then enable or disable the Paste menu item, depending on the return value. Applications that recognize more than one clipboard format should use the GetPriorityClipboardFormat function for this purpose. Retrieves data from the clipboard in a specified format. The clipboard must have been opened previously. Type: UINT A clipboard format. For a description of the standard clipboard formats, see Standard Clipboard Formats. Read more on docs.microsoft.com. Type: HANDLE If the function succeeds, the return value is the handle to a clipboard object in the specified format. If the function fails, the return value is NULL. To get extended error information, call GetLastError.
Caution  Clipboard data is not trusted. Parse the data carefully before using it in your application.
 
An application can enumerate the available formats in advance by using the EnumClipboardFormats function. The clipboard controls the handle that the GetClipboardData function returns, not the application. The application should copy the data immediately. The application must not free the handle nor leave it locked. The application must not use the handle after the EmptyClipboard or CloseClipboard function is called, or after the SetClipboardData function is called with the same clipboard format. The system performs implicit data format conversions between certain clipboard formats when an application calls the GetClipboardData function. For example, if the CF_OEMTEXT format is on the clipboard, a window can retrieve data in the CF_TEXT format. The format on the clipboard is converted to the requested format on demand. For more information, see Synthesized Clipboard Formats. Read more on docs.microsoft.com. Places the given window in the system-maintained clipboard format listener list. Type: HWND A handle to the window to be placed in the clipboard format listener list. Read more on docs.microsoft.com. Type: BOOL Returns TRUE if successful, FALSE otherwise. Call GetLastError for additional details. When a window has been added to the clipboard format listener list, it is posted a WM_CLIPBOARDUPDATE message whenever the contents of the clipboard have changed. Removes the given window from the system-maintained clipboard format listener list. Type: HWND A handle to the window to remove from the clipboard format listener list. Read more on docs.microsoft.com. Type: BOOL Returns TRUE if successful, FALSE otherwise. Call GetLastError for additional details. When a window has been removed from the clipboard format listener list, it will no longer receive WM_CLIPBOARDUPDATE messages.