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| 1 // Copyright 2004-2009 Google Inc. | |
| 2 // | |
| 3 // Licensed under the Apache License, Version 2.0 (the "License"); | |
| 4 // you may not use this file except in compliance with the License. | |
| 5 // You may obtain a copy of the License at | |
| 6 // | |
| 7 // http://www.apache.org/licenses/LICENSE-2.0 | |
| 8 // | |
| 9 // Unless required by applicable law or agreed to in writing, software | |
| 10 // distributed under the License is distributed on an "AS IS" BASIS, | |
| 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 12 // See the License for the specific language governing permissions and | |
| 13 // limitations under the License. | |
| 14 // ======================================================================== | |
| 15 | |
| 16 #include "omaha/base/clipboard.h" | |
| 17 #include "base/basictypes.h" | |
| 18 #include "omaha/base/debug.h" | |
| 19 | |
| 20 namespace omaha { | |
| 21 | |
| 22 // Put the given string on the system clipboard | |
| 23 void SetClipboard(const TCHAR *string_to_set) { | |
| 24 ASSERT(string_to_set, (L"")); | |
| 25 | |
| 26 int len = lstrlen(string_to_set); | |
| 27 | |
| 28 // | |
| 29 // Note to developer: It is not always possible to step through this code | |
| 30 // since the debugger will possibly steal the clipboard. E.g. OpenClipboard | |
| 31 // might succeed and EmptyClipboard might fail with "Thread does not have | |
| 32 // clipboard open". | |
| 33 // | |
| 34 | |
| 35 // Actual clipboard processing | |
| 36 if (::OpenClipboard(NULL)) { | |
| 37 BOOL b = ::EmptyClipboard(); | |
| 38 ASSERT(b, (L"EmptyClipboard failed")); | |
| 39 | |
| 40 // Include the terminating null | |
| 41 len++; | |
| 42 | |
| 43 HANDLE copy_handle = ::GlobalAlloc(GMEM_MOVEABLE | GMEM_DDESHARE, | |
| 44 len * sizeof(TCHAR)); | |
| 45 ASSERT(copy_handle, (L"")); | |
| 46 | |
| 47 byte* copy_data = reinterpret_cast<byte*>(::GlobalLock(copy_handle)); | |
| 48 memcpy(copy_data, string_to_set, len * sizeof(TCHAR)); | |
| 49 ::GlobalUnlock(copy_handle); | |
| 50 | |
| 51 #ifdef _UNICODE | |
| 52 HANDLE h = ::SetClipboardData(CF_UNICODETEXT, copy_handle); | |
| 53 #else | |
| 54 HANDLE h = ::SetClipboardData(CF_TEXT, copy_handle); | |
| 55 #endif | |
| 56 | |
| 57 ASSERT(h != NULL, (L"SetClipboardData failed")); | |
| 58 if (!h) { | |
| 59 ::GlobalFree(copy_handle); | |
| 60 } | |
| 61 | |
| 62 VERIFY(::CloseClipboard(), (L"")); | |
| 63 } else { | |
| 64 ASSERT(false, (L"OpenClipboard failed - %i", ::GetLastError())); | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 } // namespace omaha | |
| 69 | |
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