vc6.0的帮助文档
The IDirectDrawPalette::SetEntries method changes entries in a DirectDrawPalette object immediately.
HRESULT SetEntries(
DWORD dwFlags,
DWORD dwStartingEntry,
DWORD dwCount,
LPPALETTEENTRY lpEntries
);
Parameters
dwFlags
This parameter is currently not used and must be set to 0.
dwStartingEntry
First entry to be set.
dwCount
Number of palette entries to be changed.
lpEntries
Address of the palette entries. The palette entries are 1 byte each if the DDPCAPS_8BITENTRIES flag is set and 4 bytes otherwise. Each field is a color description.
Return Values
If the method succeeds, the return value is DD_OK.
The IDirectDrawPalette::GetEntries method queries palette values from a DirectDrawPalette object.
HRESULT GetEntries(
DWORD dwFlags,
DWORD dwBase,
DWORD dwNumEntries,
LPPALETTEENTRY lpEntries
);
Parameters
dwFlags
This parameter is currently not used and must be set to 0.
dwBase
Start of the entries that should be retrieved sequentially.
dwNumEntries
Number of palette entries that can fit in the address specified in lpEntries. The colors of each palette entry are returned in sequence, from the value of the dwStartingEntry parameter through the value of the dwCount parameter minus 1. (These parameters are set by IDirectDrawPalette::SetEntries.)
lpEntries
Address of the palette entries. The palette entries are 1 byte each if the DDPCAPS_8BITENTRIES flag is set and 4 bytes otherwise. Each field is a color description.
Return Values
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_NOTPALETTIZED