Undoes the last automation operation performed in the class object's container.
#include "Ltwrappr.h"
L_INT LRasterPaintWindow::Undo()
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
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.
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;
}