Why CFileDialog::GetNextPathName doesn't work when the file path is long?

Question

Using CFileDialog class, I select multiple files placed in a directory with a long path. It\'s OK when I select only one or two files; but when I select three f

Answer 1

Assuming that your code looks something like this:

CFileDialog dialog(...);
dialog.DoModal();

---

Determine the maximum number of files that you wish to support, for example:

#define MAX_FILE_NAMES 256

---

Add this before calling DoModal:

CString data;
dialog.m_pOFN->nMaxFile = (MAX_FILE_NAMES*(MAX_PATH+1))+1;
dialog.m_pOFN->lpstrFile = data.GetBuffer((MAX_FILE_NAMES*(MAX_PATH+1))+1);

---

Add this after calling DoModal:

data.ReleaseBuffer();