Not display controls on the modaless dialog

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Dear,

I built a default dialog project and added one more dialog to display when user presses OK button.
IDD_DIALOG1 has a few controls as button and editbox but it does not display the button and editbox if create modaless dialog as follow:
If somebody know why, please advice me.

void CTestDlg::OnOK()
{
   CDlgTest *dlg;

   dlg = new CDlgTest(this);
   dlg->Create(IDD_DIALOG1, this );
   dlg->ShowWindow(SW_SHOW);
   Sleep(10000);
   dlg->DestroyWindwo();
   delete dlg;
}

Posted 19-Oct-10 18:21pm

Young J. PARK

Updated 19-Oct-10 21:38pm

Dalek Dave

v3

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Dalek Dave 20-Oct-10 3:38am

Edited for Syntax.

1 solution

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«_Superman_» · Answer 1 · 2010-10-19T20:31:00

A dialog box needs a dialog procedure in which it processes message to draw its child controls. In MFC this is handled by the dialog class.
The way you're creating is to crate it and immediately destroy it after sleeping for some time.
You're not giving MFC a chance to draw the controls.

What you have to do is to create the dialog class pointer as a member of the parent class.
You will also need to remove the destruction of the dialog from the OnOK function.
This must happen from within the child dialog.