JavaScript Editor js editor     Web development 

Main Page

Performs again the change made to the file in the specified editing window that was undone by the most recent _EdUndo(В ).

void _EdRedo(WHANDLE wh)
WHANDLE wh;            /* Handle of editing window. */


The following example opens for editing a file specified by a parameter. After inserting a new line, the new line is removed using _EdUndo(В ), and then inserted again using _EdRedo(В ).

Visual FoxPro Code

В Copy Code
= EDREDO("x")

C Code

В Copy Code
#include <pro_ext.h>

FAR Example(ParamBlk FAR *parm)
#define pFILENAME ((char FAR *) _HandToPtr(parm->p[0].val.ev_handle))

   WHANDLE wh;

   if (!_SetHandSize(parm->p[0].val.ev_handle,
      _Error(182); // "Insufficient memory"
   pFILENAME[parm->p[0].val.ev_length] = '\0';

   wh = _EdOpenFile(pFILENAME, FO_READWRITE);

   _EdSetPos(wh, _EdGetLinePos(wh, 13));
   _EdInsert(wh, "Hello, world\n", _StrLen("Hello, world\n"));

   _Execute("WAIT WINDOW 'New line inserted.  Press any key to undo.'");

   _Execute("WAIT WINDOW 'Insertion undone.  Press any key to redo.'");

FoxInfo myFoxInfo[] = {
   {"EDREDO", (FPFI) Example, 1, "C"},
FoxTable _FoxTable = {
   (FoxTable FAR *) 0, sizeof(myFoxInfo)/sizeof(FoxInfo), myFoxInfo

See Also

JavaScript Editor js editor     Web development