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WM_DISPLAYCHANGE message
The WM_DISPLAYCHANGE message is sent to all windows when the display resolution has changed.
A window receives this message through its WindowProc function.
LRESULT CALLBACK WindowProc(
HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam
);
Parameters
-
wParam
-
The new image depth of the display, in bits per pixel.
-
lParam
-
The low-order word specifies the horizontal resolution of the screen.
The high-order word specifies the vertical resolution of the screen.
Remarks
This message is only sent to top-level windows. For all other windows it is posted.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|
See also
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