EM_UNDO (Windows CE 5.0)
This message reverses the effect of the last edit control operation.
EM_UNDO wParam = 0;lParam = 0;
Parameters
- wParam
Not used; set to 0. - lParam
Not used; set to 0.
Return Values
For a single-line edit control, the return value is always TRUE. For a multiline edit control, the return value is TRUE if the undo operation is successful, or FALSE if the undo operation fails.
Remarks
An undo operation can also be undone. For example, you can restore deleted text with the first EM_CANUNDO message, and remove the text again with a second EM_CANUNDO message as long as there is no intervening edit operation.
Requirements
OS Versions: Windows CE 1.0 and later.
Header: Windows.h.
See Also
EM_CANUNDO | Edit Boxes Messages
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