IOverlayNotify::OnPaletteChange method (strmif.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The OnPaletteChange method provides notification that the palette of the window has changed.
Syntax
HRESULT OnPaletteChange(
[in] DWORD dwColors,
[in] const PALETTEENTRY *pPalette
);
Parameters
[in] dwColors
Number of colors present.
[in] pPalette
Pointer to the array of palette colors.
Return value
Returns S_OK if successful. If the method fails, it returns an HRESULT error code.
Remarks
Before returning, the filter should copy the array of RGBQUAD values, if necessary.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |