The IDirectDrawPalette::SetEntries method changes entries in a DirectDrawPalette object immediately.
HRESULT SetEntries(
DWORD dwFlags,
DWORD dwStartingEntry,
DWORD dwCount,
LPPALETTEENTRY lpEntries
);
If the method succeeds, the return value is DD_OK.
If the method fails, the return value may be one of the following error values:
DDERR_INVALIDOBJECT |
DDERR_INVALIDPARAMS |
DDERR_NOPALETTEATTACHED |
DDERR_NOTPALETTIZED |
DDERR_UNSUPPORTED |
IDirectDrawPalette::GetEntries, IDirectDrawSurface3::SetPalette