DosModeUndo

This function is similar to DOSSAVREDRAWUNDO, but does not control a save/restore thread, but the thread to change video modes.

Syntax
APIRET16 Pascal far DOSMODEUNDO(viohdl, kill, flag)

Parameters

 * viohdl (short): VIO Handle of the screen group
 * kill (short)
 * 0 - send an error code to mode save/restore thread
 * 1 - terminate the mode save/restore thread


 * flag (short)
 * 0 - remain owner of the mode save/restore thread
 * 1 - give up mode save/restore thread