trunk/Src/Win32/Common/WinHelper.h

   1 // WinHelper.h
   2 //
   3 /////////////////////////////////////////////////////////////////////////////
   4 //
   5 // Copyright (c) 2002 Iain Murray, Inference Group, Cavendish, Cambridge.
   6 //
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 #ifndef __WinHelper_h__
  10 #define __WinHelper_h__
  11
  12 #define NOMINMAX
  13 #define WIN32_LEAN_AND_MEAN     // Excludes rarely-used stuff from the Windows headers
  14 #include <windows.h>
  15 #include <winbase.h>
  16 #include <Commdlg.h>
  17
  18 /*
  19         Initialise Common Controls library. If we want this to work with Windows 95
  20         with no extra dll's or versions of IE installed, we define OriginalWin95 and
  21         play games with macros. Having said that, almost all Windows systems should
  22         have the required DLL for new common control features (either with the system
  23         or with IE). If not it is an easy upgrade from:
  24         http://www.microsoft.com/msdownload/ieplatform/ie/comctrlx86.asp
  25
  26         IAM 08/2002
  27 */
  28 #ifdef OriginalWin95
  29 #define _WIN32_IE_TMP _WIN32_IE
  30 #undef _WIN32_IE
  31 #define _WIN32_IE 0x0100
  32 #endif
  33
  34 #include <commctrl.h>
  35
  36 #ifdef OriginalWin95
  37 #undef _WIN32_IE
  38 #define _WIN32_IE _WIN32_IE_TMP
  39 #undef _WIN32_IE_TMP
  40 #endif
  41
  42 #ifdef OriginalWin95
  43 #undef CP_UTF8                  // as we can't use it
  44 #endif
  45
  46 // windows.h provides the "generic" character type TCHAR.
  47 #include "tchar.h"              // this adds some useful macros
  48 // Sometimes it is much easier to use strings, for which we now have Tstring.
  49 #include <string>
  50 typedef std::basic_string < TCHAR > Tstring;
  51
  52 // Some global helpers. In all my applications there is just one instance,
  53 // or one important one, and WinHelper::hInstApp saves passing it around endlessly
  54 namespace WinHelper {
  55   extern HINSTANCE hInstApp;
  56   void LastWindowsError();
  57   void InitCommonControlLib();
  58   void GetUserDirectory(Tstring * Output);      // Both thof these will always
  59   void GetAppDirectory(Tstring * Output);       // return a trailing "\"
  60 }
  61 #endif                          /* #ifndef __WinHelper_h__ */