juce/source/src/native/windows/juce_win32_Misc.cpp

   1 /*
   2   ==============================================================================
   3
   4    This file is part of the JUCE library - "Jules' Utility Class Extensions"
   5    Copyright 2004-11 by Raw Material Software Ltd.
   6
   7   ------------------------------------------------------------------------------
   8
   9    JUCE can be redistributed and/or modified under the terms of the GNU General
  10    Public License (Version 2), as published by the Free Software Foundation.
  11    A copy of the license is included in the JUCE distribution, or can be found
  12    online at www.gnu.org/licenses.
  13
  14    JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
  15    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  16    A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  17
  18   ------------------------------------------------------------------------------
  19
  20    To release a closed-source product which uses JUCE, commercial licenses are
  21    available: visit www.rawmaterialsoftware.com/juce for more information.
  22
  23   ==============================================================================
  24 */
  25
  26 // (This file gets included by juce_win32_NativeCode.cpp, rather than being
  27 // compiled on its own).
  28 #if JUCE_INCLUDED_FILE
  29
  30
  31 //==============================================================================
  32 void SystemClipboard::copyTextToClipboard (const String& text)
  33 {
  34     if (OpenClipboard (0) != 0)
  35     {
  36         if (EmptyClipboard() != 0)
  37         {
  38             const int bytesNeeded = CharPointer_UTF16::getBytesRequiredFor (text.getCharPointer()) + 4;
  39
  40             if (bytesNeeded > 0)
  41             {
  42                 HGLOBAL bufH = GlobalAlloc (GMEM_MOVEABLE | GMEM_DDESHARE | GMEM_ZEROINIT, bytesNeeded + sizeof (WCHAR));
  43
  44                 if (bufH != 0)
  45                 {
  46                     WCHAR* const data = static_cast <WCHAR*> (GlobalLock (bufH));
  47                     text.copyToUTF16 (data, bytesNeeded);
  48                     GlobalUnlock (bufH);
  49
  50                     SetClipboardData (CF_UNICODETEXT, bufH);
  51                 }
  52             }
  53         }
  54
  55         CloseClipboard();
  56     }
  57 }
  58
  59 String SystemClipboard::getTextFromClipboard()
  60 {
  61     String result;
  62
  63     if (OpenClipboard (0) != 0)
  64     {
  65         HANDLE bufH = GetClipboardData (CF_UNICODETEXT);
  66
  67         if (bufH != 0)
  68         {
  69             const WCHAR* const data = (const WCHAR*) GlobalLock (bufH);
  70
  71             if (data != nullptr)
  72             {
  73                 result = String (data, (int) (GlobalSize (bufH) / sizeof (WCHAR)));
  74
  75                 GlobalUnlock (bufH);
  76             }
  77         }
  78
  79         CloseClipboard();
  80     }
  81
  82     return result;
  83 }
  84
  85
  86 #endif