OnFileClose Method
The OnFileClose method checks for unsaved changes made in the edit control.
This method has the following syntax:
integer = Edit_Object.OnFileClose()
The OnFileClose method returns ER_OK if the close operation can proceed; otherwise, it returns ER_FAIL. Descriptions of system constant values and their numeric equivalents are listed in
Error Codes.
This method should be called for the File Close, File Exit, and the WindowClose events.