nfbHelpValidateGC(D3nfb)

nfbHelpValidateGC -- validate GC

Synopsis


void nfbHelpValidateGC (
	register GCPtr pGC,
	Mask changes,
	DrawablePtr pDraw);

Description

nfbHelpValidateGC( ) is called by the ValidateWindowGC routine to do the actual GC validation. Display drivers should not replace or modify this routine.

Arguments

The arguments are:

pGC: Points to an nfbGCOps(D4nfb) structure. From this structure you can extract the planemask, alu, and color for the GC.
changes
pDraw: Pointer to a DrawablePtr structure used to access your screen private data. The Pdraw->pScreen member points to the ScreenRec(D4nfb) structure; your screen private data is connected to the bottom of the ScreenRec structure.

Exit codes

None

Version applicability

This function is supported for NFB drivers on all releases of SCO OpenServer 5, SVR5, and AIX 5L.

Source files

Routine source: ./hw/sco/ports/nfb/nfbHelpGC.c
Driver source file: xxxGC.c

References

ValidateWindowGC(D3nfb)