BOOL CALLBACK DrawOpaqueRectProc(LPPDEVICE lpDestDev, DWORD BgColor, WORD x, WORD y, WORD xExt, WORD yExt);
A minidriver-defined callback function specified in the lpDrawRect parameter to DIB_ExtTextOutExt. The DIB engine calls this function to draw the opaquing rectangle.
lpDestDev
Address of a PDEVICE or PBITMAP structure specifying the destination device or bitmap.
BgColor
Background color to use for opaquing.
x
Left origin of rectangle to opaque.
y
Top origin of rectangle to opaque.
xExt
Width of rectangle to opaque.
yExt
Height of rectangle to opaque.
See also DIB_ExtTextOutExt