Solved

Using GetOpenFileName() correctly

Posted on 1998-12-01
4
432 Views
Last Modified: 2013-12-03
Below is the code I have for trying to use GetOpenFilename to pop-up a dialog for opening a file in my non-MFC application.

However, when the program gets to this line of code, and I try to step over it in the debugger, it brings the application down, without any error message, except 0xC0000005 Access Violation!! Help!

     S_filename.lStructSize       = sizeof( S_filename );

    S_filename.hwndOwner       = (HWND)Parent_Handle;    

    S_filename.hInstance       = NULL;

    S_filename.lpstrFilter       = "Castle Files\0*.set\0";    

    S_filename.lpstrCustomFilter = NULL;

//    S_filename.nMaxCustFilter    = NULL;    

    S_filename.nFilterIndex      = 1;

//    S_filename.lpstrFile;    

//    S_filename.nMaxFile;

//    S_filename.lpstrFileTitle;    

//    S_filename.nMaxFileTitle;

    S_filename.lpstrInitialDir       = current_filter;    

    S_filename.lpstrTitle       = NULL;

    S_filename.Flags             = OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_NONETWORKBUTTON;    

//    S_filename.nFileOffset;

//    S_filename.nFileExtension;    

//    S_filename.lpstrDefExt;

//    S_filename.lCustData;    

//    S_filename.lpfnHook;

//    S_filename.lpTemplateName;



      status = GetOpenFileName( &S_filename );

0
Comment
Question by:gunn
  • 2
4 Comments
 
LVL 3

Expert Comment

by:plaroche
ID: 1416552
Have you called InitCommonControls in your application?
0
 
LVL 11

Accepted Solution

by:
alexo earned 50 total points
ID: 1416553
You should set all the unused members of the struct to zero.

Here's a snippet from one of my programs:

    OPENFILENAME ofn = { sizeof(OPENFILENAME) };
    const char filter[] = "Text files\0*.TXT\0All files\0*.*\0";
    char file[4096] = "";

    ofn.hwndOwner = hwnd;
    ofn.lpstrFilter = filter;
    ofn.nFilterIndex = 1;
    ofn.lpstrFile = file;
    ofn.nMaxFile = sizeof file;
    ofn.lpstrInitialDir = directory;
    ofn.Flags = OFN_EXPLORER | OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_NONETWORKBUTTON;

    GetOpenFileName(&ofn);

0
 

Author Comment

by:gunn
ID: 1416554
Thanks a lot alexo. That did the trick!

0
 

Author Comment

by:gunn
ID: 1416555
Nah, I never did call InitCommonControls...? But it works fine now..
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article shows how to make a Windows 7 gadget that extends its U/I with a flyout panel -- a window that pops out next to the gadget.  The example gadget shows several additional techniques:  How to automatically resize a gadget or flyout panel t…
After several hours of googling I could not gather any information on this topic. There are several ways of controlling the USB port connected to any storage device. The best example of that is by changing the registry value of "HKEY_LOCAL_MACHINE\S…
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…

862 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now