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 #ifdef __WXWINCE__
  16     #include <winreg.h>
  17     #include <objbase.h>
  18     #include <shlguid.h>
  19 #endif
  20
  21 #include <shlobj.h>
  22
  23 #include "wx/msw/winundef.h"
  24
  25 // ----------------------------------------------------------------------------
  26 // wxItemIdList implements RAII on top of ITEMIDLIST
  27 // ----------------------------------------------------------------------------
  28
  29 class wxItemIdList
  30 {
  31 public:
  32     // ctor takes ownership of the item and will free it
  33     wxItemIdList(LPITEMIDLIST pidl)
  34     {
  35         m_pidl = pidl;
  36     }
  37
  38     static void Free(LPITEMIDLIST pidl)
  39     {
  40         if ( pidl )
  41         {
  42             LPMALLOC pMalloc;
  43             SHGetMalloc(&pMalloc);
  44             if ( pMalloc )
  45             {
  46                 pMalloc->Free(pidl);
  47                 pMalloc->Release();
  48             }
  49             else
  50             {
  51                 wxLogLastError(wxT("SHGetMalloc"));
  52             }
  53         }
  54     }
  55
  56     ~wxItemIdList()
  57     {
  58         Free(m_pidl);
  59     }
  60
  61     // implicit conversion to LPITEMIDLIST
  62     operator LPITEMIDLIST() const { return m_pidl; }
  63
  64     // get the corresponding path, returns empty string on error
  65     wxString GetPath() const
  66     {
  67         wxString path;
  68         if ( !SHGetPathFromIDList(m_pidl, wxStringBuffer(path, MAX_PATH)) )
  69         {
  70             wxLogLastError(_T("SHGetPathFromIDList"));
  71         }
  72
  73         return path;
  74     }
  75
  76 private:
  77     LPITEMIDLIST m_pidl;
  78
  79     DECLARE_NO_COPY_CLASS(wxItemIdList)
  80 };
  81
  82 // enable autocompleting filenames in the text control with given HWND
  83 //
  84 // this only works on systems with shlwapi.dll 5.0 or later
  85 //
  86 // implemented in src/msw/utilsgui.cpp
  87 extern bool wxEnableFileNameAutoComplete(HWND hwnd);
  88
  89 #endif // _WX_MSW_WRAPSHL_H_
  90