VG3_window_update()
Flush drawn data to window to show the contents.SYNTAX
void
VG3_window_update(struct vg3_window *wstruct,
int xdelta,
int ydelta)
FUNCTION PARAMETERS
| wstruct | Window-struct |
| xdelta | Horizontal adjustment of the window contents, or 0 = no adjustment |
| ydelta | Vertical adjustment of the window contents, or 0 = no adjustment |
DESCRIPTION
This function causes the window to show the data drawn to it.
Without calling this function, the window would remain black.
Horizontal and/or vertical adjustment can simulate a shaking of the contents.