VGLBitmapCreate
VGLMouseOrMask = VGLBitmapCreate(MEMBUF, OrMask->VXsize, OrMask->VYsize, 0);
VGLBitmap *VGLBitmapCreate(int type, int xsize, int ysize, byte *bits);
tmp = VGLBitmapCreate(MEMBUF, 256, 256, NULL);