PRB: MULTIPAD Sample from Win 3.1 SDK Gives Printing Error (94607)

The information in this article applies to:

Microsoft Windows Software Development Kit (SDK) 3.1

This article was previously published under Q94607

3.10 WINDOWS kbprg kbprb

SYMPTOMS

The MULTIPAD sample that ships with the Microsoft Windows version 3.1 SDK allows only one print job to be sent to the printer. Any further attempts to print result in the following error:

Cannot print <document name>!

The document is not printed, and you must re-start MULTIPAD to do any printing.

CAUSE

The PRINTDLG data structure used for printing is a global variable, and two members of this structure are invalid after the first print job is sent. These members are not properly initialized for subsequent print jobs.

RESOLUTION

In the MPPRINT.C file, in the GetPrinterDC() routine, the following lines:

   if (pd.hDevNames)

   GlobalFree(pd.hDevNames);

   if (pd.hDevMode)

   GlobalFree(pd.hDevMode);

should be changed to:

   if (pd.hDevNames)
   {

    GlobalFree(pd.hDevNames);
    pd.hDevNames=NULL;

   }
   if (pd.hDevMode)
   {

    GlobalFree(pd.hDevMode);
    pd.hDevMode=NULL;

   }

STATUS

This behavior is by design.

Modification Type:	Minor	Last Reviewed:	2/11/2005
Keywords:	kb16bitonly kbprb KB94607