This message is sent by an application to set or remove the read-only style (ES_READONLY) of an edit control.
At a Glance
| Header file: | Winuser.h |
| Windows CE versions: | 1.0 and later |
Syntax
EM_SETREADONLY wParam = (WPARAM)(BOOL) fReadOnly;
lParam = 0L;
Parameters
fReadOnly
Boolean value that specifies whether to set or remove the ES_READONLY style. A value of TRUE sets the ES_READONLY style; a value of FALSE removes the ES_READONLY style.
Return Values
Nonzero indicates success. Zero indicates failure.
Remarks
When an edit control has the ES_READONLY style, the user cannot change the text within the edit control.
To determine whether an edit control has the ES_READONLY style, use the GetWindowLong function with the GWL_STYLE flag.
See Also