An application sends an EM_CANUNDO message to determine whether an edit-control operation can be undone; that is, whether the control can respond to the EM_UNDO message.
EM_CANUNDO wParam = 0; // not used; must be zero lParam = 0; // not used; must be zero
This message has no parameters.
If the edit control can correctly process the EM_UNDO message, the return value is TRUE; otherwise, it is FALSE.
|file: /Techref/os/win/api/win32/mess/src/msg04_8.htm, 1KB, , updated: 2000/4/7 12:19, local time: 2022/8/8 00:11,
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