EM_GETREDONAME Message

An application sends an EM_GETREDONAME message to a rich edit control to retrieve the type of the next action, if any, in the control's redo queue.

To send this message, call the SendMessage function with the following parameters.

Syntax

lResult = SendMessage( 
  (HWND) hWnd,
  (UINT) EM_GETREDONAME,
  (WPARAM) wParam,
  (LPARAM) lParam
);

Parameters

wParam
Not used; must be zero.
lParam
Not used; must be zero.

Return Value

If the redo queue for the control is not empty, the value returned is an UNDONAMEID enumeration value that indicates the type of the next action in the control's redo queue.
If there are no redoable actions or the type of the next redoable action is unknown, the return value is zero.

Remarks

The types of actions that can be undone or redone include typing, delete, drag-drop, cut, and paste operations. This information can be useful for applications that provide an extended user interface for undo and redo operations, such as a drop-down list box of redoable actions.

Message Information

Header Declared in Richedit.h
Minimum operating systems Windows 95 with Rich Edit 2.0 , Windows 98, Windows NT 4.0