Function BeginExternalScreen

rEFIt_UEFI/refit/screen.cpp:178–198

}

VOID BeginExternalScreen(IN BOOLEAN UseGraphicsMode/*, IN CONST CHAR16 *Title*/)
{
	if (!AllowGraphicsMode) {
        UseGraphicsMode = FALSE;
	}
    
    if (UseGraphicsMode) {
        SwitchToGraphics();
		//BltClearScreen(FALSE);
    }
    
    // show the header
	//DrawScreenHeader(Title);
    
	if (!UseGraphicsMode) {
        SwitchToText(TRUE);
	}
    
    // reset error flag
    haveError = FALSE;
}

VOID FinishExternalScreen(VOID)
{