How To Implement an Independent Floating Modeless Dialog Box in MFC for Pocket PC (298685)

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1. Define your CDialog class (for example, CMyDialog) as usual.
2. Implement WM_INITDIALOG in a static dialog procedure, which will be used in that next step, that:
   
   
   1. Sets the dialog box's m_bFullScreen member to FALSE.
   2. Attaches the newly created dialog box to your dialog class.
   3. Calls OnInitDialog.
   This following code demonstrates this:

   // This proc is declared as static in the class declaration
   BOOL CALLBACK CMyDialog::MyDlgProc(HWND hWnd,UINT msg,WPARAM wParam,LPARAM lParam)
   {
   	CDialog *pDlg;
   
   	switch (msg)
   	{
   		case WM_INITDIALOG:
   			pDlg = (CDialog*)lParam;
   			pDlg->m_bFullScreen = FALSE;
   			pDlg->Attach(hWnd);
   			return pDlg->OnInitDialog();
   
   		default:
   			return FALSE;
   	}
   
   }
   					

3. Override CMyDialog::Create to call ::CreateDialogParam and pass the this pointer as the dwInitParam parameter. This will be passed in the lParam of the WM_INITDIALOG message:

   BOOL CMyDialog::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext) 
   {
   	::CreateDialogParam(AfxGetInstanceHandle(),
   		MAKEINTRESOURCE(IDD_DIALOG1),
   		pParentWnd->GetSafeHwnd(),
   		CMyDialog::MyDlgProc,
   		(LPARAM)this);
   
   	return TRUE;
   }
   
   					

4. Implement CMyDialog::OnSettingChange to return CWnd::OnSettingChange:

   void CMyDialog::OnSettingChange(UINT uFlags,LPCTSTR lpszSection)
   {
   	CWnd::OnSettingChange(uFlags,lpszSection);
   }