This example uses WinFileDlg to create and display a single file selection dialog using the system default open file dialog template and procedure.

#define INCL_WINSTDFILE                /* Window Standard File         */
                                       /* functions                    */
#include <os2.h>

FILEDLG fild;                          /* File dialog info structure   */
char pszTitle[10] = "Open File";       /* Title of dialog              */
char pszFullFile[CCHMAXPATH] = "*.C";  /* File filter string           */
HWND hwndMain;                         /* Window that owns the file    */
                                       /* dialog                       */
HWND hwndDlg;                          /* File dialog window           */

/* Initially set all fields to 0 */
memset(&pfdFiledlg, 0, sizeof(FILEDLG));

/* Initialize those fields in the FILEDLG structure */
/* that are used by the application                 */
fild.cbSize = sizeof(FILEDLG);         /* Size of structure            */
fild.fl = FDS_HELPBUTTON |             /* FDS_* flags                  */
          FDS_CENTER |
          FDS_OPEN_DIALOG;
fild.pszTitle = pszTitle;              /* Dialog title string          */

/* Initial path, file name, or file filter */
strcpy(fild.szFullFile, pszFullFile);

/* Display the dialog and get the file */
hwndDlg = WinFileDlg(HWND_DESKTOP, hwndMain, &fild);
if (hwndDlg && (pfild.lReturn == DID_OK))
{
   /* Upon successful return of a file, open it for reading */
   /* and further processing                                */
}