VGLBitmapCopy
VGLBitmapCopy(&VGLVDisplay, 0, 0, VGLDisplay, 0, 0,
int VGLBitmapCopy(VGLBitmap *src, int srcx, int srcy, VGLBitmap *dst, int dstx, int dsty, int width, int hight);
VGLBitmapCopy(tmp, 32, 32, VGLDisplay, 400, 128, 128, 128);
VGLBitmapCopy(VGLDisplay, 300, 300, VGLDisplay, 500, 128, 128, 128);
VGLBitmapCopy(VGLDisplay, rand()%xsize, rand()%ysize,
VGLBitmapCopy(tmp, 0, 0, VGLDisplay, 0, 0, 128, 128);
VGLBitmapCopy(tmp, 0, 0, VGLDisplay, 3, 128, 128, 128);
VGLBitmapCopy(VGLDisplay, 237, 311, tmp, 64, 64, 128, 128);