该支持库定义REGION相关API
复制HRGN句柄
复制窗体绘图区域
::Gdi32.api("CombineRgn", "int(pointer hrg,pointer hrgnSrc1,pointer hrgnSrc12,int mode)");
::Gdi32.api("CreateRectRgn", "pinter(int top,int top,int right,int bottom)");
::Gdi32.api( "CreateRoundRectRgn", "pointer(int, int, int, int, int, int)" );
::User32.api("GetWindowRgn", "int(addr hWnd, pointer hRgn)");
::User32.api("SetWindowRgn", "bool(addr hWnd, pointer hRgn, bool bRedraw)");