file writing not working after call to open file dialog

Question

after call to following function i cant write to any files i tried c++ fstream and c\'s fopen what\'s wrong please help thanks in advance i am using codeblocks mingw windows

Answer 1

If you change folder in the dialog it will change the current folder for your process - try adding the OFN_NOCHANGEDIR flag.

Answer 2

Try CreateFile and WriteFile.

string s = "file.dat";

HANDLE hFile = CreateFile(s.c_str(),       // name of the write
                   GENERIC_WRITE,          // open for writing
                   0,                      // do not share
                   NULL,                   // default security
                   CREATE_ALWAYS,          // Creates a new file, always
                   FILE_ATTRIBUTE_NORMAL,  // normal file
                   NULL);                  // no attr. template
DWORD writesBytes;
bool writeok = WriteFile(hFile, &Current_Doc, sizeof(Current_Doc), &writesBytes, NULL);

CloseHandle(hFile);

Similar problem, and my answer is here:

OPENFILENAME open dialog