2
http://oss.sgi.com/projects/ogl-sample/registry/ARB/wgl_buffer_region.txt
3
WGL_FRONT_COLOR_BUFFER_BIT_ARB 0x00000001
4
WGL_BACK_COLOR_BUFFER_BIT_ARB 0x00000002
5
WGL_DEPTH_BUFFER_BIT_ARB 0x00000004
6
WGL_STENCIL_BUFFER_BIT_ARB 0x00000008
7
HANDLE wglCreateBufferRegionARB (HDC hDC, int iLayerPlane, UINT uType)
8
VOID wglDeleteBufferRegionARB (HANDLE hRegion)
9
BOOL wglRestoreBufferRegionARB (HANDLE hRegion, int x, int y, int width, int height, int xSrc, int ySrc)
10
BOOL wglSaveBufferRegionARB (HANDLE hRegion, int x, int y, int width, int height)