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: 
| 
   CDERR_FINDRESFAILURE  | 
  
   CDERR_NOHINSTANCE  | 
 
| 
   CDERR_INITIALIZATION  | 
  
   CDERR_NOHOOK  | 
 
| 
   CDERR_LOCKRESFAILURE  | 
  
   CDERR_NOTEMPLATE  | 
 
| 
   CDERR_LOADRESFAILURE  | 
  
   CDERR_STRUCTSIZE  | 
 
| 
   CDERR_LOADSTRFAILURE  | 
  
   FNERR_BUFFERTOOSMALL  | 
 
| 
   CDERR_MEMALLOCFAILURE  | 
  
   FNERR_INVALIDFILENAME  | 
 
| 
   CDERR_MEMLOCKFAILURE  | 
  
   FNERR_SUBCLASSFAILURE  | 
 
Remarks
By default,
Windows 95 and Windows NT version 4.0 display a new version of the Open dialog
box that 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 4.0 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.
See Also