src/WINNT/netidmgr_plugin/afshelp.c

   1 /*
   2  * Copyright (c) 2005,2006 Secure Endpoints Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  */
  24
  25 /* $Id$ */
  26
  27 #define NOSTRSAFE
  28
  29 #include<afscred.h>
  30 #include<shlwapi.h>
  31 #include<htmlhelp.h>
  32 #include<psapi.h>
  33
  34 #ifdef DEBUG
  35 #include<assert.h>
  36 #endif
  37
  38 #include<strsafe.h>
  39
  40 static wchar_t helpfile[MAX_PATH] = L"";
  41
  42 /* can only be called from the UI thread */
  43 HWND
  44 afs_html_help(HWND caller,
  45               wchar_t * postfix,
  46               UINT cmd,
  47               DWORD_PTR data) {
  48
  49     wchar_t fullp[MAX_PATH + MAX_PATH];
  50
  51     if (!helpfile[0]) {
  52         DWORD rv;
  53
  54         rv = GetModuleFileNameEx(GetCurrentProcess(),
  55                                  hInstance,
  56                                  helpfile,
  57                                  ARRAYLENGTH(helpfile));
  58 #ifdef DEBUG
  59         assert(rv != 0);
  60 #endif
  61         PathRemoveFileSpec(helpfile);
  62         PathAppend(helpfile, AFS_HELPFILE);
  63     }
  64
  65     StringCbCopy(fullp, sizeof(fullp), helpfile);
  66     if (postfix)
  67         StringCbCat(fullp, sizeof(fullp), postfix);
  68
  69     return HtmlHelp(caller, fullp, cmd, data);
  70 }