BUG at Print ?!

Hi

I have a SDI application with a CListView. I have a menu option which call the function OnFilePrintPreview(). In this moment the application fails...

Code:

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void CVisionCARView::TiparesteAcordImprumut(void)
{
        AfxMessageBox("Tipareste");

        OnFilePrintPreview();
}

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I have use this code before and it works fine. Since then I change my version of Visual C++.

It posible to be a bug?


I'm using now Visual C++ 2003 Standard.

Quote:

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Originally Posted by bujcat

In this moment the application fails...

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Fails? What exactly is happening?

Might need a little more info. How does it fail? Have you stepped through in debug? Have you tried overriding the default OnFilePrintPreview in your view class?

sulu

The message is:

Debug Assertion Failed!
Program: ...
File: bardlg.cpp
Line: 44


And in OUTPUT window I Have:

ERROR: Cannot find dialog template with IDD 0x7803.
Unhandled exception at 0x005c4afa in VisionCAR.exe: User breakpoint.

I haven't override the function OnFilePrintPreview.

Quote:

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Originally Posted by bujcat

The message is:

Debug Assertion Failed!
Program: ...
File: bardlg.cpp
Line: 44

---

So an assertion failed. And - have you looked at line 44 of bardlg.cpp to see which assertion failed?

This is the code where it fais(bardlg.cpp)

Code:

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#ifdef _DEBUG
        // dialog template must exist and be invisible with WS_CHILD set
        if (!_AfxCheckDialogTemplate(lpszTemplateName, TRUE))
        {
line 44:                ASSERT(FALSE);          // invalid dialog template name
                PostNcDestroy();        // cleanup if Create fails too soon
                return FALSE;
        }
#endif //_DEBUG

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I try the same code in Visual C++ 2002 and I have the same problem. I think that I'm doing something wrong but I don't understand what... :confused:

Please make this simple test and tell me if it working at you.

Make a SDI application with a view of type CListView.

If I make an SDI application with a view of type CView it works very well.

Please help me... :confused:

Quote:

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Originally Posted by bujcat

This is the code where it fais(bardlg.cpp)

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Well, it tells you why it fails: A dialog resource template (probably the one used for the print preview dialog bar) could not be found - they are located in afxprint.rc.

The problem is that the class wizard only adds afxprint.rc to your project if you choose "Printing and Print Preview" as a feature when you generate the project - and if you choose a view type where you usually implement your own printing code (like CView or CScrollView). Printing and print preview is not automatically supported for control-based views like CListView.

I shoul edit some code for that? Do you know an example?

anybody?

Quote:

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Originally Posted by bujcat

I shoul edit some code for that? Do you know an example?

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The easiest way is to create a new project and select CView as the view type - and add your CControlView later. However, you will still need to implement the printing code yourself.

Check your applications .rc file and that it has this at he end:

Code:

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#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
#ifdef _WIN32
LANGUAGE 9, 1
#pragma code_page(1252)
#endif //_WIN32
#include "res\YourApplicationName.rc2"  // non-Microsoft Visual C++ edited resources
#include "afxres.rc"        // Standard components
#include "afxprint.rc"      // printing/print preview resources
#endif

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Quote:

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Originally Posted by Roger Allen

Check your applications .rc file and that it has this at he #include "afxprint.rc" // printing/print preview resources

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Yes - but that alone won't help: You still need to implement OnPreparePrinting() and OnPrint(), (and possibly also OnBeginPrinting() and OnEndPrinting()) in the view class, and call at least DoPreparePrinting() in the OnPreparePrinting() implementation - or the call to OnFilePrintPreview() will assert at another point.