GetOpenFileName

The GetOpenFileName function creates an Open common dialog box that lets the user specify the drive, directory, and the name of a file or set of files to open.

BOOL GetOpenFileName(
  LPOPENFILENAME lpofn   // address of structure with initialization 
                         // data
);
 

Parameters

lpofn

Pointer to an OPENFILENAME structure that contains information used to initialize the dialog box. When GetOpenFileName returns, this structure contains information about the user's file selection.

Return Values

If the user specifies a filename and clicks the OK button, the return value is nonzero. The buffer pointed to by the lpstrFile member of the OPENFILENAME structure contains the full path and filename specified by the user.

If the user cancels or closes the Open dialog box or an error occurs, the return value is zero. To get extended error information, call the CommDlgExtendedError function, which can return one of the following values:

Remarks

Beginning with Windows 95 and Windows NT version 4.0, the default Open dialog box provides user-interface features that are similar to the Windows Explorer. You can provide an OFNHookProc hook procedure for an Explorer-style Open dialog box. To enable the hook procedure, set the OFN_EXPLORER and OFN_ENABLEHOOK flags in the Flags member of the OPENFILENAME structure and specify the address of the hook procedure in the lpfnHook member.

Windows 95 and Windows NT continue to support the old-style Open dialog box for applications that want to maintain a user-interface consistent with the Windows 3.1 or Windows NT 3.51 user-interface. To display the old-style Open dialog box, enable an OFNHookProcOldStyle hook procedure and ensure that the OFN_EXPLORER flag is not set.

To display a dialog box that allows the user to select a directory instead of a file, call the SHBrowseForFolder function.

Windows CE: Not all members of the OPENFILENAME structure are defined in Windows CE. For information about the defined members, see the reference topic for the OPENFILENAME structure.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Requires version 1.0 or later.
  Header: Declared in commdlg.h.
  Import Library: Use comdlg32.lib.
  Unicode: Implemented as Unicode and ANSI versions on Windows NT.

See Also

Common Dialog Box Library Overview, Common Dialog Box Functions, CommDlgExtendedError, GetSaveFileName, OFNHookProc , OFNHookProcOldStyle, OPENFILENAME, SHBrowseForFolder