include/wx/msw/wrapshl.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/wrapshl.h
   3 // Purpose:     wrapper class for stuff from shell32.dll
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     2004-10-19
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2004 Vadim Zeitlin <vadim@wxwindows.org>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_MSW_WRAPSHL_H_
  13 #define _WX_MSW_WRAPSHL_H_
  14
  15 #include "wx/msw/wrapwin.h"
  16
  17 #ifdef __WXWINCE__
  18     #include <winreg.h>
  19     #include <objbase.h>
  20     #include <shlguid.h>
  21     #include <shellapi.h>
  22 #endif
  23
  24 #include <shlobj.h>
  25
  26 #include "wx/msw/winundef.h"
  27
  28 // ----------------------------------------------------------------------------
  29 // wxItemIdList implements RAII on top of ITEMIDLIST
  30 // ----------------------------------------------------------------------------
  31
  32 class wxItemIdList
  33 {
  34 public:
  35     // ctor takes ownership of the item and will free it
  36     wxItemIdList(LPITEMIDLIST pidl)
  37     {
  38         m_pidl = pidl;
  39     }
  40
  41     static void Free(LPITEMIDLIST pidl)
  42     {
  43         if ( pidl )
  44         {
  45             LPMALLOC pMalloc;
  46             SHGetMalloc(&pMalloc);
  47             if ( pMalloc )
  48             {
  49                 pMalloc->Free(pidl);
  50                 pMalloc->Release();
  51             }
  52             else
  53             {
  54                 wxLogLastError(wxT("SHGetMalloc"));
  55             }
  56         }
  57     }
  58
  59     ~wxItemIdList()
  60     {
  61         Free(m_pidl);
  62     }
  63
  64     // implicit conversion to LPITEMIDLIST
  65     operator LPITEMIDLIST() const { return m_pidl; }
  66
  67     // get the corresponding path, returns empty string on error
  68     wxString GetPath() const
  69     {
  70         wxString path;
  71         if ( !SHGetPathFromIDList(m_pidl, wxStringBuffer(path, MAX_PATH)) )
  72         {
  73             wxLogLastError(_T("SHGetPathFromIDList"));
  74         }
  75
  76         return path;
  77     }
  78
  79 private:
  80     LPITEMIDLIST m_pidl;
  81
  82     DECLARE_NO_COPY_CLASS(wxItemIdList)
  83 };
  84
  85 // enable autocompleting filenames in the text control with given HWND
  86 //
  87 // this only works on systems with shlwapi.dll 5.0 or later
  88 //
  89 // implemented in src/msw/utilsgui.cpp
  90 extern bool wxEnableFileNameAutoComplete(HWND hwnd);
  91
  92 #endif // _WX_MSW_WRAPSHL_H_
  93