Region:
CombineRgn
CreateEllipticRgn
CreateRectRgn
CreateRoundRectRgn
DeleteObject
FrameRgn
GdipSetClipRectI
GetRegionData
GetRgnBox
GetWindowRgnBox
LockFile
PaintDesktop
PathToRegion
SetWindowRgn
UnlockFile
VirtualAllocEx
VirtualFreeEx
Creating a clipping region from the path selected into the device context of a form
Creating irregularly shaped FoxPro form using transparency color key
Finding parameters for the region specified
How to create transparent areas inside a form -- punching holes in the form
How to draw custom Window Caption on FoxPro form
Round FoxPro form
Setting the Window Region for a form