On single-screen AutoCAD installations, an ObjectARX application can call acedGraphScr() to display the graphics screen or acedTextScr() to display the text screen. These functions are equivalent to the AutoCAD GRAPHSCR and TEXTSCR commands or to toggling the Flip Screen function key.
The acedRedraw() function is similar to the AutoCAD REDRAW command, but it provides more control over what is displayed: it can redraw the entire graphics screen and also specify a single object to be either redrawn or undrawn (blanked out). If the object is a complex object such as a polyline or block, acedRedraw() can draw (or undraw) either the entire object or only its header. The acedRedraw() function can be used also to highlight or unhighlight selected objects.