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LRasterPaintWindow::Undo

Summary

Undoes the last automation operation performed in the class object's container.

Syntax

#include "Ltwrappr.h"

L_INT LRasterPaintWindow::Undo()

Returns

Value	Meaning
SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

LRasterPaintWindow::Undo must be called at least once in order to perform a "redo" using LRasterPaintWindow::Redo.

To determine whether an automation operation can be undone, call LRasterPaintWindow::CanUndo.

LRasterPaintWindow::Initialize must be called before calling this function.

Required DLLs and Libraries

LTPNT
LTDIS
LTFIL
LTAUT
LTCON
LTTLB
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application

Example

L_INT LRasterPaintWindow_UndoExample(LRasterPaintWindow * pLRasterPntWnd)  
{ 
   L_INT nRet; 
 
   if(pLRasterPntWnd->CanUndo ()) 
   { 
      nRet =  pLRasterPntWnd->Undo(); 
      if(nRet != SUCCESS) 
         return nRet; 
   } 
   else 
      return FAILURE; 
   return  SUCCESS; 
}