GreDeviceSetPaletteEntries
GreDeviceSetPaletteEntries changes the entries in a palette as a result of an application's GpiSetPaletteEntries request. These changes do not become apparent until an application calls WinRealizePalette. If an application wants to change its palette rapidly and makes those changes immediately apparent, it calls GpiAnimatePalette.
This function can be hooked by the presentation driver.
- Simulation support
- This function is simulated by a handling routine in Revision 2.0 (or later) of the graphics engine.
Syntax
GreDeviceSetPaletteEntries(hdc, hdevpal, ulFormat, ulStart, cclr, pclr, pInstance, lFunction)
Parameters
- hdc (HDC) - input
- Device context handle.
- hdevpal (ULONG) - input
- Device palette handle.
- ulFormat (ULONG) - input
- Specifies the entry format. Must be LCOLF_CONSECRGB.
- ulStart (ULONG) - input
- Starting index, that is, first palette entry to change.
- cclr (ULONG) - input
- Count of palette entries to change.
- pclr (PULONG) - input
- Pointer to table of new RGB2 palette entries.
- pInstance (PVOID) - input
- Pointer to instance data.
- lFunction (ULONG) - input
- High-order WORD=flags; low-order WORD=NGreDeviceSetPaletteEntries.
Returns
- rc (BOOL) - returns
- Return codes.
- This function returns BOOLEAN (fSuccess).
- TRUE Successful, if entries set without error
- FALSE Error
- Possible Errors Detected: When an error is detected, the handling routine must call WinSetErrorInfo to post the condition. Error codes for conditions that the handling routine is expected to check include:
- PMERR_INV_IN_AREA
- PMERR_INV_IN_PATH
- PMERR_INV_COLOR_INDEX