dlgcore.cpp

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	if (m_pParentWnd == NULL)
		m_pParentWnd = pParentWnd;

	m_lpDialogTemplate = lpDialogTemplate;
	m_lpDialogInit = lpDialogInit;

	return TRUE;    // always ok (DoModal actually brings up dialog)
}

HWND CDialog::PreModal()
{
	// cannot call DoModal on a dialog already constructed as modeless
	ASSERT(m_hWnd == NULL);

	// allow OLE servers to disable themselves
	CWinApp* pApp = AfxGetApp();
	if (pApp != NULL)
		pApp->EnableModeless(FALSE);

	// find parent HWND
	HWND hWnd = CWnd::GetSafeOwner_(m_pParentWnd->GetSafeHwnd(), &m_hWndTop);

	// hook for creation of dialog
	AfxHookWindowCreate(this);

	// return window to use as parent for dialog
	return hWnd;
}

void CDialog::PostModal()
{
	AfxUnhookWindowCreate();   // just in case
	Detach();               // just in case

	// re-enable windows
	if (::IsWindow(m_hWndTop))
		::EnableWindow(m_hWndTop, TRUE);
	m_hWndTop = NULL;
	CWinApp* pApp = AfxGetApp();
	if (pApp != NULL)
		pApp->EnableModeless(TRUE);
}

int CDialog::DoModal()
{
	// can be constructed with a resource template or InitModalIndirect
	ASSERT(m_lpszTemplateName != NULL || m_hDialogTemplate != NULL ||
		m_lpDialogTemplate != NULL);

	// load resource as necessary
	LPCDLGTEMPLATE lpDialogTemplate = m_lpDialogTemplate;
	HGLOBAL hDialogTemplate = m_hDialogTemplate;
	HINSTANCE hInst = AfxGetResourceHandle();
	if (m_lpszTemplateName != NULL)
	{
		hInst = AfxFindResourceHandle(m_lpszTemplateName, RT_DIALOG);
		HRSRC hResource = ::FindResource(hInst, m_lpszTemplateName, RT_DIALOG);
		hDialogTemplate = LoadResource(hInst, hResource);
	}
	if (hDialogTemplate != NULL)
		lpDialogTemplate = (LPCDLGTEMPLATE)LockResource(hDialogTemplate);

	// return -1 in case of failure to load the dialog template resource
	if (lpDialogTemplate == NULL)
		return -1;

	// disable parent (before creating dialog)
	HWND hWndParent = PreModal();
	AfxUnhookWindowCreate();
	BOOL bEnableParent = FALSE;
	if (hWndParent != NULL && ::IsWindowEnabled(hWndParent))
	{
		::EnableWindow(hWndParent, FALSE);
		bEnableParent = TRUE;
	}

	TRY
	{
		// create modeless dialog
		AfxHookWindowCreate(this);
		if (CreateDlgIndirect(lpDialogTemplate,
						CWnd::FromHandle(hWndParent), hInst))
		{
			if (m_nFlags & WF_CONTINUEMODAL)
			{
				// enter modal loop
				DWORD dwFlags = MLF_SHOWONIDLE;
				if (GetStyle() & DS_NOIDLEMSG)
					dwFlags |= MLF_NOIDLEMSG;
				VERIFY(RunModalLoop(dwFlags) == m_nModalResult);
			}

			// hide the window before enabling the parent, etc.
			if (m_hWnd != NULL)
				SetWindowPos(NULL, 0, 0, 0, 0, SWP_HIDEWINDOW|
					SWP_NOSIZE|SWP_NOMOVE|SWP_NOACTIVATE|SWP_NOZORDER);
		}
	}
	CATCH_ALL(e)
	{
		DELETE_EXCEPTION(e);
		m_nModalResult = -1;
	}
	END_CATCH_ALL

	if (bEnableParent)
		::EnableWindow(hWndParent, TRUE);
	if (hWndParent != NULL && ::GetActiveWindow() == m_hWnd)
		::SetActiveWindow(hWndParent);

	// destroy modal window
	DestroyWindow();
	PostModal();

	// unlock/free resources as necessary
	if (m_lpszTemplateName != NULL || m_hDialogTemplate != NULL)
		UnlockResource(hDialogTemplate);
	if (m_lpszTemplateName != NULL)
		FreeResource(hDialogTemplate);

	return m_nModalResult;
}

void CDialog::EndDialog(int nResult)
{
	ASSERT(::IsWindow(m_hWnd));

	if (m_nFlags & (WF_MODALLOOP|WF_CONTINUEMODAL))
		EndModalLoop(nResult);

	::EndDialog(m_hWnd, nResult);
}

/////////////////////////////////////////////////////////////////////////////
// Standard CDialog implementation

LRESULT CDialog::HandleSetFont(WPARAM wParam, LPARAM)
{
	OnSetFont(CFont::FromHandle((HFONT)wParam));
	return Default();
}

void CDialog::PreInitDialog()
{
	// ignore it
}

LRESULT CDialog::HandleInitDialog(WPARAM, LPARAM)
{
	PreInitDialog();

#ifndef _AFX_NO_OCC_SUPPORT
	// create OLE controls
	COccManager* pOccManager = afxOccManager;
	if ((pOccManager != NULL) && (m_pOccDialogInfo != NULL))
	{
		BOOL bDlgInit;
		if (m_lpDialogInit != NULL)
			bDlgInit = pOccManager->CreateDlgControls(this, m_lpDialogInit,
				m_pOccDialogInfo);
		else
			bDlgInit = pOccManager->CreateDlgControls(this, m_lpszTemplateName,
				m_pOccDialogInfo);

		if (!bDlgInit)
		{
			TRACE0("Warning: CreateDlgControls failed during dialog init.\n");
			EndDialog(-1);
			return FALSE;
		}
	}
#endif

	// Default will call the dialog proc, and thus OnInitDialog
	BOOL bResult = Default();

#ifndef _AFX_NO_OCC_SUPPORT
	if (bResult && (m_nFlags & WF_OLECTLCONTAINER))
	{
		CWnd* pWndNext = GetNextDlgTabItem(NULL);
		if (pWndNext != NULL)
		{
			pWndNext->SetFocus();   // UI Activate OLE control
			bResult = FALSE;
		}
	}
#endif

	return bResult;
}

BOOL AFXAPI AfxHelpEnabled()
{
	if (AfxGetApp() == NULL)
		return FALSE;

	// help is enabled if the app has a handler for ID_HELP
	AFX_CMDHANDLERINFO info;

	// check main window first
	CWnd* pWnd = AfxGetMainWnd();
	if (pWnd != NULL && pWnd->OnCmdMsg(ID_HELP, CN_COMMAND, NULL, &info))
		return TRUE;

	// check app last
	return AfxGetApp()->OnCmdMsg(ID_HELP, CN_COMMAND, NULL, &info);
}

void CDialog::OnSetFont(CFont*)
{
	// ignore it
}

BOOL CDialog::OnInitDialog()
{
	// execute dialog RT_DLGINIT resource
	BOOL bDlgInit;
	if (m_lpDialogInit != NULL)
		bDlgInit = ExecuteDlgInit(m_lpDialogInit);
	else
		bDlgInit = ExecuteDlgInit(m_lpszTemplateName);

	if (!bDlgInit)
	{
		TRACE0("Warning: ExecuteDlgInit failed during dialog init.\n");
		EndDialog(-1);
		return FALSE;
	}

	// transfer data into the dialog from member variables
	if (!UpdateData(FALSE))
	{
		TRACE0("Warning: UpdateData failed during dialog init.\n");
		EndDialog(-1);
		return FALSE;
	}

	// enable/disable help button automatically
	CWnd* pHelpButton = GetDlgItem(ID_HELP);
	if (pHelpButton != NULL)
		pHelpButton->ShowWindow(AfxHelpEnabled() ? SW_SHOW : SW_HIDE);

	return TRUE;    // set focus to first one
}

void CDialog::OnOK()
{
	if (!UpdateData(TRUE))
	{
		TRACE0("UpdateData failed during dialog termination.\n");
		// the UpdateData routine will set focus to correct item
		return;
	}
	EndDialog(IDOK);
}

void CDialog::OnCancel()
{
	EndDialog(IDCANCEL);
}

BOOL CDialog::CheckAutoCenter()
{
	// load resource as necessary
	LPCDLGTEMPLATE lpDialogTemplate = m_lpDialogTemplate;
	HGLOBAL hDialogTemplate = m_hDialogTemplate;
	if (m_lpszTemplateName != NULL)
	{
		HINSTANCE hInst = AfxFindResourceHandle(m_lpszTemplateName, RT_DIALOG);
		HRSRC hResource = ::FindResource(hInst, m_lpszTemplateName, RT_DIALOG);
		hDialogTemplate = LoadResource(hInst, hResource);
	}
	if (hDialogTemplate != NULL)
		lpDialogTemplate = (LPCDLGTEMPLATE)LockResource(hDialogTemplate);

	// determine if dialog should be centered
	BOOL bResult = TRUE;

	if (lpDialogTemplate != NULL)
	{
		DWORD dwStyle = lpDialogTemplate->style;
		short x;
		short y;

		if (((DLGTEMPLATEEX*)lpDialogTemplate)->signature == 0xFFFF)
		{
			// it's a DIALOGEX resource
			dwStyle = ((DLGTEMPLATEEX*)lpDialogTemplate)->style;
			x = ((DLGTEMPLATEEX*)lpDialogTemplate)->x;
			y = ((DLGTEMPLATEEX*)lpDialogTemplate)->y;
		}
		else
		{
			// it's a DIALOG resource
			x = lpDialogTemplate->x;
			y = lpDialogTemplate->y;
		}

		bResult = !(dwStyle & (DS_CENTER|DS_CENTERMOUSE|DS_ABSALIGN)) &&
			x == 0 && y == 0;
	}

	// unlock/free resources as necessary
	if (m_lpszTemplateName != NULL || m_hDialogTemplate != NULL)
		UnlockResource(hDialogTemplate);
	if (m_lpszTemplateName != NULL)
		FreeResource(hDialogTemplate);

	return bResult; // TRUE if auto-center is ok
}

/////////////////////////////////////////////////////////////////////////////
// Gray background support

#ifndef _AFX_NO_GRAYDLG_SUPPORT
HBRUSH CDialog::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
	// use helper in CWnd
	return OnGrayCtlColor(pDC, pWnd, nCtlColor);
}
#endif //!_AFX_NO_GRAYDLG_SUPPORT

/////////////////////////////////////////////////////////////////////////////
// CDialog support for context sensitive help.

LRESULT CDialog::OnCommandHelp(WPARAM, LPARAM lParam)
{
	if (lParam == 0 && m_nIDHelp != 0)
		lParam = HID_BASE_RESOURCE + m_nIDHelp;
	if (lParam != 0)
	{
		CWinApp* pApp = AfxGetApp();
		if (pApp != NULL)
			pApp->WinHelp(lParam);
		return TRUE;
	}
	return FALSE;
}

LRESULT CDialog::OnHelpHitTest(WPARAM, LPARAM)
{
	if (m_nIDHelp != 0)
		return HID_BASE_RESOURCE + m_nIDHelp;
	return 0;
}

/////////////////////////////////////////////////////////////////////////////
// CDialog Diagnostics

#ifdef _DEBUG
void CDialog::AssertValid() const
{
	CWnd::AssertValid();
}

void CDialog::Dump(CDumpContext& dc) const
{
	CWnd::Dump(dc);

	dc << "m_lpszTemplateName = ";
	if (HIWORD(m_lpszTemplateName) == 0)
		dc << (int)LOWORD((DWORD)m_lpszTemplateName);
	else
		dc << m_lpszTemplateName;

	dc << "\nm_hDialogTemplate = " << (UINT)m_hDialogTemplate;
	dc << "\nm_lpDialogTemplate = " << (UINT)m_lpDialogTemplate;
	dc << "\nm_pParentWnd = " << (void*)m_pParentWnd;
	dc << "\nm_nIDHelp = " << m_nIDHelp;

	dc << "\n";
}

// diagnostic routine to check for and decode dialog templates
// return FALSE if a program error occurs (i.e. bad resource ID or
//   bad dialog styles).
BOOL AFXAPI _AfxCheckDialogTemplate(LPCTSTR lpszResource, BOOL bInvisibleChild)
{
	ASSERT(lpszResource != NULL);
	HINSTANCE hInst = AfxFindResourceHandle(lpszResource, RT_DIALOG);
	HRSRC hResource = ::FindResource(hInst, lpszResource, RT_DIALOG);
	if (hResource == NULL)
	{
		if (HIWORD(lpszResource) != 0)
			TRACE1("ERROR: Cannot find dialog template named '%s'.\n",
				lpszResource);
		else
			TRACE1("ERROR: Cannot find dialog template with IDD 0x%04X.\n",
				LOWORD((DWORD)lpszResource));
		return FALSE;
	}

	if (!bInvisibleChild)
		return TRUE;        // that's all we need to check

	// we must check that the dialog template is for an invisible child
	//  window that can be used for a form-view or dialog-bar
	HGLOBAL hTemplate = LoadResource(hInst, hResource);
	if (hTemplate == NULL)
	{
		TRACE0("Warning: LoadResource failed for dialog template.\n");
		// this is only a warning, the real call to CreateDialog will fail
		return TRUE;        // not a program error - just out of memory
	}
	DLGTEMPLATEEX* pTemplate = (DLGTEMPLATEEX*)LockResource(hTemplate);
	DWORD dwStyle;
	if (pTemplate->signature == 0xFFFF)
		dwStyle = pTemplate->style;
	else
		dwStyle = ((DLGTEMPLATE*)pTemplate)->style;
	UnlockResource(hTemplate);
	FreeResource(hTemplate);

	if (dwStyle & WS_VISIBLE)
	{
		if (HIWORD(lpszResource) != 0)
			TRACE1("ERROR: Dialog named '%s' must be invisible.\n",
				lpszResource);
		else
			TRACE1("ERROR: Dialog with IDD 0x%04X must be invisible.\n",
				LOWORD((DWORD)lpszResource));
		return FALSE;
	}
	if (!(dwStyle & WS_CHILD))
	{
		if (HIWORD(lpszResource) != 0)
			TRACE1("ERROR: Dialog named '%s' must have the child style.\n",
				lpszResource);
		else
			TRACE1("ERROR: Dialog with IDD 0x%04X must have the child style.\n",
				LOWORD((DWORD)lpszResource));
		return FALSE;
	}

	return TRUE;
}

#endif //_DEBUG

#ifdef AFX_INIT_SEG
#pragma code_seg(AFX_INIT_SEG)
#endif

IMPLEMENT_DYNAMIC(CDialog, CWnd)

/////////////////////////////////////////////////////////////////////////////