The cbAttribute parameter contains the size, in bytes, of that object.ĭwmSetWindowAttribute enables your application to set the non-client area rendering policy. The DWMWINDOWATTRIBUTE enumeration topic indicates, in the row for each flag, what type of value you should pass a pointer to in the pvAttribute parameter for DwmGetWindowAttribute. HRESULT hr = ::DwmGetWindowAttribute(hWnd,įollow the same programming pattern shown above when you call DwmGetWindowAttribute with flags for different attributes. This example demonstrates how to handle the color changed message and access the new color.ĭWORD newColorizationColor To access this colorization value, and monitor the color change, use the DwmGetColorizationColor function and the WM_DWMCOLORIZATIONCOLORCHANGED message. The colorization value is provided through the DWM APIs to enable your application to match client UI with the system color theme.
The color of the non-client region of a window is determined by the current system color theme. Additionally, you can set and query the rendering policy for different DWM window attributes. These APIs enable you to query and change the composition state. The Desktop Window Manager (DWM) composition APIs provide several functions for setting and querying for basic information that is used by the DWM.
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