PvtDlg.exe Demonstrates Using Private Dialog-Box Class

ID: Q83365

The information in this article applies to:

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

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. Click the file names below to download the files:

Pvtdlg.exe

For more information about how to download files from the Microsoft Download Center, please visit the Download Center at the following Web address

http://www.microsoft.com/downloads/search.asp

and then click How to use the Microsoft Download Center.

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 kbGrpUser kbWinOS310 kbWndw kbWndwClass kbWndwProp kbWinOS300
Version : WINDOWS:3.0,3.1
Platform : WINDOWS
Issue type :