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Calls this function to set the read-only state of an edit control.

BOOL SetReadOnly( 
   BOOL bReadOnly = TRUE  


Specifies whether to set or remove the read-only state of the edit control. A value of TRUE sets the state to read-only; a value of FALSE sets the state to read/write.

Nonzero if the operation is successful, or 0 if an error occurs.

The current setting can be found by testing the ES_READONLY flag in the return value of CWnd::GetStyle.

For more information, see EM_SETREADONLY in the Windows SDK.

// Set the edit control to be read-only.
ASSERT(m_myEdit.GetStyle() & ES_READONLY);

Header: afxwin.h