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Alright! Problem solved. For some reason it is necessary to set the flag OFN_NOCHANGEDIR to prevent GetOpenFileName() from interfering with the fstreams. In frustration, I decided there was a finite number of settings for the OPENFILENAME members, and proceeded to systematically try them all...

The memory issue appears to have gone away, and I am unable to find what caused it in the first place. I just now tested it with the code I posted a few days ago, and It no longer crashes. However, the program is still unable to use functions from the fstream library. Oddly though, the program...

I have further traced this problem to nomemory.cpp where it throws an out of memory exception.

I have tried setting the owner to the handle of the application and the dialog from which it is called. I am not using any of the filenames in this part of the program, I am using them to generate a configuration file for another part of the program. Once I have gotten a string from the openfile...

I am having a problem with this function as well I used this code in my dialog callback to get a filename case IDC_BUTTON1: OPENFILENAME ofn; char fname[300] = ""; ZeroMemory(ofn, sizeof(ofn)); ofn.nMaxFile = sizeof(ofn); ofn.lptstrFile = fname; ofn.lptstrFilter =...