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POSubdialog's hWnd resets to NULL after the dialog is initialized
 

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  1. POSubdialog's hWnd resets to NULL after the dialog is initialized
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    <p>I have stuck with the following problem. I have a main dialog that has some controls. It also displays several subdialogs (as subcontrols) that are set as a pointer members with their <code>ID</code>s. I create these dialogs with their <code>ID</code>s via <code>CreateControl</code> during <code>OnInitDialog</code>. Yesterday it <b>worked very well</b>. Today, I decided to add some controls to subdialogs and caught a problem.</p> <p>That's how I create subdialogs in the main dialog durig <code>OnInitDialog</code>:</p> <pre><code>if (m_pNewObjDlg != NULL) m_pNewObjDlg-&gt;Create(m_nNewObjDlgID, this); if (m_pSharedObjDlg != NULL) m_pSharedObjDlg-&gt;Create(m_nSharedObjDlgID, this); </code></pre> <p>That's how I set the subdialogs outside from one of my routines:</p> <pre><code>dlgSelectSharedObject.SetNewPageObject(&amp;dlgSelectNewTableDialog, CSelectNewTableDialog::IDD); dlgSelectSharedObject.SetSharedPageObject(&amp;dlgSelectSharedTable, CSelectSharedTableDialog::IDD); </code></pre> <p>I see that <code>OnInitDialog</code> and <code>DoDataExchange</code> of the two subdialogs work well, subdialogs' <code>m_hWnd</code>s are set, <code>GetDlgItem</code> methods return valid values. But when the execution comes back to main dialog's <code>OnInitDialog</code> I see that <code>m_hWnd</code> values of <code>pNewObjDlg</code> and <code>pSharedObjDlg</code> are <code>NULL</code>. I don't know how that could happen. I double checked the <code>ID</code>s, they don't overlap. As a result I get an <code>ASSERT</code> with nothing displayed except main dialog with its controls. Just any thoughts?</p>
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    1. USDmitry K.
    1. USDmitry K.
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    1. COwhat controls you have in your sub-dialogs? are there any OCX controls?
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    2. CO@cha I'n not using any unsual controls like OCX and extensions, everything is just buttons, labels and list boxes.
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      1. POSubdialog's hWnd resets to NULL after the dialog is initialized
      1. USDmitry K.
    3. COI guess it is something with `ID`s.
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      1. POSubdialog's hWnd resets to NULL after the dialog is initialized
      1. USDmitry K.
 

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