L_ColorResBitmap function's pPalette parameter

LPRGBQUAD pPalette (with CRF_USERPALETTE)

The palette that you supply is an array of RGBQUAD values. The RGBQUAD structure (defined in WINDOWS.H) has four one-byte fields as follows:

rgbBlue
rgbGreen
rgbRed
rgbReserved

L_ColorResBitmap maps the bitmap's pixel values to the palette entries that are not reserved. In the last field of the RGBQUAD structure (rgbReserved), you can enter the following flags to control whether the function maps any pixel values to the entry:

Value	Meaning
RGB_RESERVED	[0x01] Do not map any pixel values to this entry. Use this flag if you want to reserve the entry for later use.
0	Map pixel values to the color that you supply.