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NF:shellscalingapi.RegisterScaleChangeNotifications |
RegisterScaleChangeNotifications function (shellscalingapi.h) |
Registers a window to receive callbacks when scaling information changes. |
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shell\RegisterScaleChangeNotifications.htm |
shell |
79FB0A54-EBF0-4aab-B631-B4D3EA54D20B |
12/05/2018 |
RegisterScaleChangeNotifications, RegisterScaleChangeNotifications function [Windows Shell], shell.RegisterScaleChangeNotifications, shellscalingapi/RegisterScaleChangeNotifications |
shellscalingapi.h |
Windows |
Windows 8 [desktop apps only] |
Windows Server 2012 [desktop apps only] |
Shcore.dll |
Windows |
19H1 |
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Registers a window to receive callbacks when scaling information changes.
Type: DISPLAY_DEVICE_TYPE
The enum value that indicates which display device to receive notifications about.
Type: HWND
The handle of the window that will receive the notifications.
Type: UINT
An application-defined message that is passed to the window specified by hwndNotify when scaling information changes. Typically, this should be set to WM_APP+x, where x is an integer value.
Type: DWORD*
Pointer to a value that, when this function returns successfully, receives a registration token. This token is used to revoke notifications by calling RevokeScaleChangeNotifications.
Type: STDAPI
If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
This message specified by uMsgNotify is posted to the registered window through PostMessage. The wParam of the message can contain a combination of SCALE_CHANGE_FLAGS that describe the change that occurred.