SAMPLE: Dbctl.exe Using ODBC in an ActiveX Control

 Last reviewed: July 2, 1997
Article ID: Q152534
The information in this article applies to:
  • The Microsoft Foundation Classes (MFC) included with: - Microsoft Visual C++, 32-bit Edition, versions 4.0, 4.1

SUMMARY

DBCTL demonstrates a way to use ODBC in an ActiveX Control (OLE Control). A Visual C++ and a Visual Basic client application are included as part of this sample. The Visual C++ client is called DBUSR, the Visual Basic client is called DBVBUSR.

The following file is available for download from the Microsoft Software Library: 

 ~ Dbctl.exe (size: 122729 bytes)
For more information about downloading files from the Microsoft Software Library, please see the following article in the Microsoft Knowledge Base: 

   ARTICLE-ID: Q119591
   TITLE     : How to Obtain Microsoft Support Files from Online Services
NOTE: Use the -d option when running DBCTL.EXE to decompress the file and recreate the proper directory structure.

MORE INFORMATION

DBCTL creates and opens a Class Wizard-configured CRecordset object from within the virtual override of COleControl::OnSetClientSite. The CRecordset- derived object is configured to the COURSE table of the STDREG32.MDB that comes with the sample.

The CRecordset-derived object is closed from within its own destructor. The CRecordset object is destructed with a call to the delete operator from within the COleControl derived class destructor.

The control exposes one method, a DisplayRecords method, that simply lists the contents of the recordset in the control.

The OLE Control subclasses a listbox. The string items are added to the listbox by using SendMessage.

The DBUSR.EXE and DBVBUSR.EXE demonstrate using the custom control.

Keywords : kbfile kbprg kbsample MfcDatabase
Technology : kbole kbMfc
Version : 4.0 4.1
Platform : NT WINDOWS

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Last reviewed: July 2, 1997
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