Microsoft KB Archive/83365

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PvtDlg.exe Demonstrates Using Private Dialog-Box Class

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Q83365

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The information in this article applies to:


 * Microsoft Windows Software Development Kit (SDK) versions 3.0, 3.1

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SUMMARY
Pvtdlg.exe is a file in the Microsoft Software Library that demonstrates using a private dialog-box class in an application. The PVTDLG application demonstrates using a private dialog-box class by itself and in conjunction with another dialog box procedure. PVTDLG registers a private dialog-box class that specifies a number of additional window extra bytes. The sample stores the colors to paint each window in the allocated space.

MORE INFORMATION
The following files are available for download from the Microsoft Download Center:

Pvtdlg.exe

For additional information about how to download Microsoft Support files, click the article number below to view the article in the Microsoft Knowledge Base:

"Q119591 How to Obtain Microsoft Support Files from Online Services" Microsoft used the most current virus detection software available on the date of posting to scan this file for viruses. Once posted, the file is housed on secure servers that prevent any unauthorized changes to the file.

A private dialog-box class is a technique that allows one callback procedure to process messages that are common to several different dialog boxes. The private dialog-box class encapsulates code that would otherwise be repeated in each dialog procedure.

When Windows has a message for a dialog box that is a member of a private dialog-box class, it calls the private dialog-box class procedure. After the private dialog-box class procedure completes its processing, it must call the DefDlgProc function.

The next step depends on the contents of the lpDialogFunc parameter in the application's call to the CreateDialog or DialogBox functions. If lpDialogFunc is NULL, the DefDlgProc function performs its default processing for the message and processing of that message is complete. If lpDialogFunc is not NULL, DefDlgProc calls the specified procedure. If the dialog box procedure returns FALSE, DefDlgProc performs its default processing for the message. If the dialog box procedure returns any other value, DefDlgProc skips the default processing and returns.

Additional query words:

Keywords : kbfile kbsample kb16bitonly kbDlg kbGrpDSUser kbOSWin310 kbWndw kbWndwClass kbWndwProp kbOSWin300

Issue type :

Technology : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK300 kbWinSDK310