![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to mpopen.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [WindowsNT SDKs] / mstools / samples / multipad|
Return to mpopen.c CVS log | Up to [WindowsNT SDKs] / mstools / samples / multipad |
Microsoft Windows NT Build 511 (SDK Final Release) 07-24-1993
/******************************************************************************\
* This is a part of the Microsoft Source Code Samples.
* Copyright (C) 1993 Microsoft Corporation.
* All rights reserved.
* This source code is only intended as a supplement to
* Microsoft Development Tools and/or WinHelp documentation.
* See these sources for detailed information regarding the
* Microsoft samples programs.
\******************************************************************************/
/***************************************************************************
* *
* MODULE : MpOpen.c *
* *
* PURPOSE : Contains the file open dialog function and it's helper *
* functions. *
* *
* FUNCTIONS : IsWild () - Ascertains that the input string *
* contains a DOS wildcard character. *
* *
* SelectFile() - If filename supplied contains a *
* wildcard, this function fills the *
* listboxes in File/Open dialog, else*
* the dialog is closed. *
* *
* FileOpenDlgProc() - Dialog funcion for the File/Open *
* dialog. *
* *
* GetFileName () - Gets a file name from the user. *
* *
***************************************************************************/
#include "multipad.h"
#include <fcntl.h>
#include <io.h>
#include <string.h>
CHAR szPropertyName [] = "FILENAME";/* Name of the File name property list item */
/****************************************************************************
* *
* FUNCTION : IsWild ( psz ) *
* *
* PURPOSE : Checks if the string (referenced by a NEAR pointer) *
* contains a DOS wildcard character ("*" or "?"). *
* *
* RETURNS : TRUE - iff the string contains a wildcard character. *
* FALSE - otherwise. . *
* *
****************************************************************************/
BOOL NEAR PASCAL IsWild(register PSTR psz)
{
for(;;)
switch (*psz++){
case '*':
case '?':
/* Found wildcard */
return TRUE;
case 0:
/* Reached end of string */
return FALSE;
default:
continue;
}
}
/****************************************************************************
* *
* FUNCTION : FileExists(pch) *
* *
* PURPOSE : Checks to see if a file exists with the path/filename *
* described by the string pointed to by 'pch'. *
* *
* RETURNS : TRUE - if the described file does exist. *
* FALSE - otherwise. *
* *
****************************************************************************/
BOOL FileExists(PSTR pch)
{
int fh;
if ((fh = open(pch, O_RDONLY)) < 0)
return(FALSE);
_lclose(fh);
return(TRUE);
}
/****************************************************************************
* *
* FUNCTION : SelectFile ( hwnd ) *
* *
* PURPOSE : Reads the string in the edit control of the File/Open *
* dialog. If it contains a wildcard, then it attempts to *
* fill the listboxes in the File/Open dialog. Othewise it *
* ends the dialog. Modifies the FILENAME item in the property*
* list of the window. *
* *
****************************************************************************/
VOID NEAR PASCAL SelectFile(register HWND hwnd)
{
register PSTR pch;
PSTR pch2;
/* Get handle (near address) to filename data in window's property list */
pch = (PSTR)GetProp (hwnd, PROP_FILENAME);
/* Get the text from the dialog's edit control into this address */
GetDlgItemText (hwnd, IDD_FILENAME, pch, 64);
if ( IsWild (pch)){
/* Select the directory and make a listing of the directories */
DlgDirList(hwnd, (LPSTR)pch, (int)IDD_DIRS, (int)IDD_PATH, (WORD)ATTR_DIRS);
/* Obtain the filename-only part of the path in the edit control */
for (pch2 = pch; *pch; pch++)
if (*pch == '\\' || *pch == ':')
pch2 = pch + 1;
/* List the files in this directory based on the wildcard. */
DlgDirList(hwnd, (LPSTR)pch2, IDD_FILES, IDD_PATH, ATTR_FILES);
/* Set the dialog's edit control to the filename part of path
* string.
*/
SetDlgItemText (hwnd, IDD_FILENAME, pch2);
}
else
{
/* The filename in the property list is not a wildcard */
if (FileExists (pch)){
RemoveProp (hwnd, PROP_FILENAME);
EndDialog (hwnd, 0);
}
else{
MPError ( hwnd, MB_OK | MB_SYSTEMMODAL, IDS_CANTOPEN, (LPSTR) pch);
SetActiveWindow (hwnd);
}
}
}
/****************************************************************************
* *
* FUNCTION : FileOpenDlgProc() *
* *
* PURPOSE : Dialog function for the File/Open dialog. Takes care of *
* calling the appropriate functions for extracting the *
* filename and wildcard, filling the listboxes and changing *
* the FILENAME item in the property list for the window. *
* *
****************************************************************************/
BOOL APIENTRY FileOpenDlgProc (
register HWND hwnd,
WORD message,
register UINT wParam,
LONG lParam)
{
PSTR pch;
switch (message){
case WM_INITDIALOG:
/* Set the default file extension on edit window, and try to
* get a listing of the files and directories.
*/
SetDlgItemText ( hwnd, IDD_FILENAME, DEFFILESEARCH);
SetProp (hwnd, PROP_FILENAME, (HANDLE) lParam);
SendDlgItemMessage (hwnd, IDD_FILENAME, EM_LIMITTEXT, 64, 0L);
SelectFile (hwnd);
break;
case WM_COMMAND:
switch (LOWORD(wParam)) {
case IDOK:
SelectFile(hwnd);
break;
case IDCANCEL:
/* Set the filename in the prop. list to NULL and quit */
pch = (PSTR) GetProp (hwnd, PROP_FILENAME);
*pch = 0;
EndDialog (hwnd, 0);
break;
case IDD_FILENAME:
/* Enable the OK button if the edit control has text. */
EnableWindow ( GetDlgItem (hwnd, IDOK),
GetWindowTextLength (GET_WM_COMMAND_HWND(wParam, lParam)));
break;
case IDD_FILES:
/* The files listbox. If file selection has changed, fill
* the new filename into the property list buffer and set
* text in edit control.
*/
if (GET_WM_COMMAND_CMD(wParam, lParam) == LBN_SELCHANGE){
pch = (PSTR) GetProp (hwnd, PROP_FILENAME);
DlgDirSelectEx(hwnd, (LPSTR)pch, 128, IDD_FILES);
SetDlgItemText (hwnd, IDD_FILENAME, (LPSTR)pch);
}
else if (GET_WM_COMMAND_CMD(wParam, lParam) == LBN_DBLCLK)
/* if the item was double-clicked, try to open it */
SelectFile(hwnd);
break;
case IDD_DIRS:
/* The directories listbox. Append current filename in edit
* control (stripped of the path prefix) to the name from
* the property list and set the new string in the edit
* control.
*/
if (GET_WM_COMMAND_CMD(wParam, lParam) == LBN_SELCHANGE) {
PSTR pch2, pchT, pchS;
pch = (PSTR) GetProp (hwnd, PROP_FILENAME);
/* Get the new drive/dir */
DlgDirSelectEx(hwnd, pch, 128, IDD_DIRS);
pch2 = pch + lstrlen(pch);
/* Fetch current contents of dialog's edit control and append
* it to name from property list... */
GetDlgItemText(hwnd,IDD_FILENAME,(LPSTR)pch2,64);
if (*pch2 == 0){
SetDlgItemText(hwnd, IDD_FILENAME, DEFFILESEARCH);
GetDlgItemText(hwnd,IDD_FILENAME,(LPSTR)pch2,64);
}
else {
pchS = pch;
for (pchT = pch = pch2; *pch; pch++) {
if (*pch == '\\' || *pch == ':')
pchT = pch2;
else
*pchT++ = *pch;
}
*pchT = 0;
pch = pchS;
}
/* Set the edit control with new string */
SetDlgItemText (hwnd, IDD_FILENAME, (LPSTR)pch);
}
else if (GET_WM_COMMAND_CMD(wParam, lParam) == LBN_DBLCLK)
SelectFile (hwnd);
break;
default:
return FALSE;
}
break;
default:
return FALSE;
}
return TRUE;
}
/****************************************************************************
* *
* FUNCTION : GetFilename ( pstr ) *
* *
* PURPOSE : Gets a filename from the user by calling the File/Open *
* dialog. *
* *
****************************************************************************/
VOID APIENTRY GetFileName(PSTR pstr)
{
#ifdef NOTCOMMONDIALOGS
DialogBoxParam (hInst, IDD_FILEOPEN, hwndFrame, FileOpenDlgProc, (LONG)pstr);
#else
OPENFILENAME ofn;
CHAR szFilterSpec [128] = /* file type filters */
"TEXT FILES(*.TXT)\0*.TXT\0";
#define MAXFILENAME 256
CHAR szFileName[MAXFILENAME];
CHAR szFileTitle[MAXFILENAME];
strcpy(szFileName, ""); /* these need be NULL*/
strcpy(szFileTitle, "");
/* fill in non-variant fields of OPENFILENAME struct. */
ofn.lStructSize = sizeof(OPENFILENAME);
ofn.hwndOwner = NULL;
ofn.lpstrFilter = szFilterSpec;
ofn.lpstrCustomFilter = NULL;
ofn.nMaxCustFilter = 0;
ofn.nFilterIndex = 0;
ofn.lpstrFile = szFileName;
ofn.nMaxFile = MAXFILENAME;
ofn.lpstrInitialDir = NULL;
ofn.lpstrFileTitle = szFileTitle;
ofn.nMaxFileTitle = MAXFILENAME;
ofn.lpstrTitle = "Open TextFiles";
ofn.lpstrDefExt = "TXT";
ofn.Flags = OFN_FILEMUSTEXIST;
/* Use standard open dialog */
if (!GetOpenFileName ((LPOPENFILENAME)&ofn)){
*pstr = 0;
MessageBox(hwndFrame, " FileOpen FAILed!", "Multipad", MB_OK | IDOK);
}
else{
strcpy(pstr, ofn.lpstrFile);
}
#endif
return;
}
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.