GreDeviceSetPaletteEntries

GreDeviceSetPaletteEntries changes the entries in a palette as a result of an application's GpiSetPalette entries 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

Sample

 * 1) define INCL_GRE_PALETTE
 * 2) include 

HDC      hdc;        /*  Device context handle. */ ULONG    hdevpal;    /*  Device palette handle. */ ULONG    ulFormat;   /*  Specifies the entry format. Must be LCOLF_CONSECRGB. */ ULONG    ulStart;    /*  Starting index, that is, first palette entry to change. */ ULONG    cclr;       /*  Count of palette entries to change. */ PULONG   pclr;       /*  Pointer to table of new RGB2 palette entries. */ PVOID    pInstance;  /*  Pointer to instance data. */ ULONG    lFunction;  /*  High-order WORD=flags; low-order WORD=NGreDeviceSetPaletteEntries. */ BOOL     rc;         /*  Return codes. */

rc = GreDeviceSetPaletteEntries(hdc, hdevpal,      ulFormat, ulStart, cclr, pclr, pInstance,       lFunction);