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POHow to handle CEdit mouse click in parent form?
 

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    <p>I'm new to MFC (coming from C# and Java) and figuring things out.</p> <p>Consider a dialog with three text boxes. I have subclassed CEdit to CMyEdit, and the three text boxes are hooked up to CMyEdit variables in the dialog class.</p> <p>I want to allow the dialog class to "know" when any of the three text boxes has been clicked with the left mouse button. I have found examples of how to add an ON_WM_LBUTTONDOWN handler to my CMyEdit class. Works great, but the handler is in the CMyEdit class only. Suppose that whenever one of the text boxes is clicked, I want the dialog to disable the other two. How can I get the dialog notified of the left-click?</p> <p>This is a completely contrived and simplified example. I don'nt actually have an app where I'm worried about left clicks in text boxes. But I think the fact that I can't figure out how to do it indicates a fundamental misunderstanding of how to deal with UI events in MFC. </p> <p>Coming from the world of C#, where everything is done for me and I have direct access to any of the events I want (got focus, mouse double click, whatever) I'm very confused on why certain events are special and provide easy access. In the case of CEdit, I don't understand why got focus, kill focus, change, and several others are "directly" available to me with no problem, but other events, like mouse click, are not. </p> <p>But back to my actual question: in the scenario described above, how can I get the dialog notified of the left mouse clicks on the text boxes? Do the text boxes need to raise events or send messages (or something else) to the dialog?</p>
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