Another Simple Way to Convert Modeless Dialogs to Modal

-->

This is another simple way of converting a modeless dialog into a modal dialog.

While overriding the dialog's Create() call, get the pointer to the main frame window and disable it using EnableWindow() call.

BOOL CModelessDlg::Create( UINT nID, CWnd* pParentWnd )
{
	

// TODO: Add your specialized code here and/or call the base class

	pParentWnd->EnableWindow(FALSE);

//You can get pParentWnd by calling

	AfxGetMainWnd() also.
	

return

 CDialog::Create(nID, pParentWnd);
}


Before destroying by "DestroyWindow()", call EnableWindow() to set it as TRUE.

void

 CModelessDlg::OnOK()
{
	

// TODO: Add extra validation here

	...........
	..........
	.........

	AfxGetMainWnd()->EnableWindow();
	DestroyWindow();
}



Comments

  • Pointer to Parent Window

    Posted by Legacy on 11/23/2001 12:00am

    Originally posted by: Pata

    I have a dialog in an own thread ( modeless ) that was floating around like hell until I passed a pointer to the main window in the constructor of the dialog.

    CSMSMyThread::CSMSMyThread(CWnd* pParent /*=NULL*/)
    : CDialog(CSMSMyThread::IDD, AfxGetApp()->GetMainWnd())
    {
    //{{AFX_DATA_INIT(CSMSMyThread)
    //}}AFX_DATA_INIT
    m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

    }

    Now it's acting like a modal dialog.

    /Pata

    Reply
  • solution for tab controls and the like

    Posted by Legacy on 02/25/2000 12:00am

    Originally posted by: Rick Kissh

    I was having trouble getting everything inside the parent frame to ignore events when it was a tab control that was the parent of the modal dialog. The following was my solution:

    // DISABLING
    // add this to your dialog constructor where pParent is the
    // parent CWnd
    GetSafeOwner( pParent, NULL )->EnableWindow( FALSE );


    // REENABLING
    // override DestroyWindow
    BOOL CCategoriesDlg::DestroyWindow()
    {
    GetSafeOwner( GetParent(), NULL )->EnableWindow( TRUE );
    return CDialog::DestroyWindow();
    }


    Reply
  • Do it with CPropertysheet

    Posted by Legacy on 12/08/1999 12:00am

    Originally posted by: Johannes Stromberg

    How do I do the same thing with CPropertySheet?

    /Johannes

    Reply
  • Didn't quite work on NT 4.0

    Posted by Legacy on 11/11/1998 12:00am

    Originally posted by: Darryl Adams

    I tried this on NT 4.0, Visual C++ 6.0, during a command message handler, and it did not quite work. I guess disabling the parent disabled the child as well. However, calling:

    GetParent()->EnableWindow(false);
    EnableWindow(true);

    This did work, and allowed me to toggle modal/modeless at the press of a button. Switching back to modeless was done with:

    GetParent()->EnableWindow(true);

    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • This white paper presents a handful of short stories about application programming interface (API) providers that have changed how we think about the industries they serve. They have built distributed ecosystems of thousands of trusted partners and developers, and invented entirely new industries and business models. Their data, content, and other digital assets have become part of the fabric of how we do business and govern in 2015. Read this white paper to learn how this simple, open technology has the …

  • The nature of the financial services industry places a myriad of international compliance requirements on a company's IT team, as well as an expectation by its customers to deliver the high test levels of performance and reliability. To survive and thrive, businesses in the industry must not only keep pace with customer demand but gain competitive advantage. Those demands mean the IT team must be at the forefront of adopting emerging technologies

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date