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Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

MFCCALC Sample: Demonstrates an Automation Server Application 

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The MFCCALC sample is an Automation (formerly OLE Automation) server. It implements a simple calculator similar to the CALC application in Windows. It can be driven with Automation with the CALCDRIV sample or run stand alone.

For more information, see the CALCDRIV sample.

Security noteSecurity Note

This sample code is provided to illustrate a concept and should not be used in applications or Web sites, as it may not illustrate the safest coding practices. Microsoft assumes no liability for incidental or consequential damages should the sample code be used for purposes other than as intended.

Building and Running the Sample

To build and run the MFCCALC sample

  1. Open the solution mfccalc.sln.

  2. On the Build menu, click Build.

  3. Run MFCCALC as a stand-alone application so it can register itself with the system.


This sample demonstrates the following keywords:

AfxGetApp; AfxGetInstanceHandle; AfxGetThread; AfxMessageBox; AfxOleInit; CCmdTarget::EnableAutomation; CDC::DrawIcon; CDC::GetSafeHdc; CDialog::Create; CDialog::DoModal; CDialog::OnCancel; CDialog::OnInitDialog; CDialog::OnOK; CMenu::AppendMenu; CMenu::ModifyMenu; CMenu::RemoveMenu; CRect::Height; CRect::Width; CString::Format; CString::IsEmpty; CString::LoadString; CWinApp::InitInstance; CWinApp::RunAutomated; CWinApp::RunEmbedded; CWnd::DestroyWindow; CWnd::DoDataExchange; CWnd::GetClientRect; CWnd::GetDlgItem; CWnd::GetSafeHwnd; CWnd::GetStyle; CWnd::IsIconic; CWnd::OnPaint; CWnd::OnQueryDragIcon; CWnd::OnSysCommand; CWnd::PostNcDestroy; CWnd::PreTranslateMessage; CWnd::SendMessage; CWnd::SetFocus; CWnd::SetWindowText; CWnd::ShowWindow; GetSystemMenu; GetSystemMetrics; LoadAccelerators; LoadIcon; MAKEINTRESOURCE; SetFocus; TranslateAccelerator


Some samples, such as this one, have not been modified to reflect the changes in the Visual C++ wizards, libraries, and compiler, but still demonstrate how to complete your desired task.

See Also

Other Resources

MFC Samples

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