testing/tools/screenshot/win32-screenshot.cpp@6474c204b198 (annotated)
testing/tools/screenshot/win32-screenshot.cpp
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright (c) 2009, The Mozilla Foundation |
| michael@0 | 3 | * All rights reserved. |
| michael@0 | 4 | * |
| michael@0 | 5 | * Redistribution and use in source and binary forms, with or without |
| michael@0 | 6 | * modification, are permitted provided that the following conditions are met: |
| michael@0 | 7 | * * Redistributions of source code must retain the above copyright |
| michael@0 | 8 | * notice, this list of conditions and the following disclaimer. |
| michael@0 | 9 | * * Redistributions in binary form must reproduce the above copyright |
| michael@0 | 10 | * notice, this list of conditions and the following disclaimer in the |
| michael@0 | 11 | * documentation and/or other materials provided with the distribution. |
| michael@0 | 12 | * * Neither the name of the Mozilla Foundation nor the |
| michael@0 | 13 | * names of its contributors may be used to endorse or promote products |
| michael@0 | 14 | * derived from this software without specific prior written permission. |
| michael@0 | 15 | * |
| michael@0 | 16 | * THIS SOFTWARE IS PROVIDED BY The Mozilla Foundation ''AS IS'' AND ANY |
| michael@0 | 17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| michael@0 | 18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| michael@0 | 19 | * DISCLAIMED. IN NO EVENT SHALL The Mozilla Foundation BE LIABLE FOR ANY |
| michael@0 | 20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| michael@0 | 21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| michael@0 | 22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| michael@0 | 23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| michael@0 | 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| michael@0 | 25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 26 | * |
| michael@0 | 27 | * Contributors: |
| michael@0 | 28 | * Ted Mielczarek <ted.mielczarek@gmail.com> |
| michael@0 | 29 | */ |
| michael@0 | 30 | /* |
| michael@0 | 31 | * screenshot.cpp : Save a screenshot of the Windows desktop in .png format. |
| michael@0 | 32 | * If a filename is specified as the first argument on the commandline, |
| michael@0 | 33 | * then the image will be saved to that filename. Otherwise, the image will |
| michael@0 | 34 | * be saved as "screenshot.png" in the current working directory. |
| michael@0 | 35 | */ |
| michael@0 | 36 | |
| michael@0 | 37 | #undef WIN32_LEAN_AND_MEAN |
| michael@0 | 38 | #include <windows.h> |
| michael@0 | 39 | #include <gdiplus.h> |
| michael@0 | 40 | |
| michael@0 | 41 | using namespace Gdiplus; |
| michael@0 | 42 | |
| michael@0 | 43 | // From http://msdn.microsoft.com/en-us/library/ms533843%28VS.85%29.aspx |
| michael@0 | 44 | static int GetEncoderClsid(const WCHAR* format, CLSID* pClsid) |
| michael@0 | 45 | { |
| michael@0 | 46 | UINT num = 0; // number of image encoders |
| michael@0 | 47 | UINT size = 0; // size of the image encoder array in bytes |
| michael@0 | 48 | |
| michael@0 | 49 | ImageCodecInfo* pImageCodecInfo = nullptr; |
| michael@0 | 50 | |
| michael@0 | 51 | GetImageEncodersSize(&num, &size); |
| michael@0 | 52 | if(size == 0) |
| michael@0 | 53 | return -1; // Failure |
| michael@0 | 54 | |
| michael@0 | 55 | pImageCodecInfo = (ImageCodecInfo*)(malloc(size)); |
| michael@0 | 56 | if(pImageCodecInfo == nullptr) |
| michael@0 | 57 | return -1; // Failure |
| michael@0 | 58 | |
| michael@0 | 59 | GetImageEncoders(num, size, pImageCodecInfo); |
| michael@0 | 60 | |
| michael@0 | 61 | for(UINT j = 0; j < num; ++j) |
| michael@0 | 62 | { |
| michael@0 | 63 | if( wcscmp(pImageCodecInfo[j].MimeType, format) == 0 ) |
| michael@0 | 64 | { |
| michael@0 | 65 | *pClsid = pImageCodecInfo[j].Clsid; |
| michael@0 | 66 | free(pImageCodecInfo); |
| michael@0 | 67 | return j; // Success |
| michael@0 | 68 | } |
| michael@0 | 69 | } |
| michael@0 | 70 | |
| michael@0 | 71 | free(pImageCodecInfo); |
| michael@0 | 72 | return -1; // Failure |
| michael@0 | 73 | } |
| michael@0 | 74 | |
| michael@0 | 75 | #ifdef __MINGW32__ |
| michael@0 | 76 | extern "C" |
| michael@0 | 77 | #endif |
| michael@0 | 78 | int wmain(int argc, wchar_t** argv) |
| michael@0 | 79 | { |
| michael@0 | 80 | GdiplusStartupInput gdiplusStartupInput; |
| michael@0 | 81 | ULONG_PTR gdiplusToken; |
| michael@0 | 82 | GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, nullptr); |
| michael@0 | 83 | |
| michael@0 | 84 | HWND desktop = GetDesktopWindow(); |
| michael@0 | 85 | HDC desktopdc = GetDC(desktop); |
| michael@0 | 86 | HDC mydc = CreateCompatibleDC(desktopdc); |
| michael@0 | 87 | int width = GetSystemMetrics(SM_CXSCREEN); |
| michael@0 | 88 | int height = GetSystemMetrics(SM_CYSCREEN); |
| michael@0 | 89 | HBITMAP mybmp = CreateCompatibleBitmap(desktopdc, width, height); |
| michael@0 | 90 | HBITMAP oldbmp = (HBITMAP)SelectObject(mydc, mybmp); |
| michael@0 | 91 | BitBlt(mydc,0,0,width,height,desktopdc,0,0, SRCCOPY|CAPTUREBLT); |
| michael@0 | 92 | SelectObject(mydc, oldbmp); |
| michael@0 | 93 | |
| michael@0 | 94 | const wchar_t* filename = (argc > 1) ? argv[1] : L"screenshot.png"; |
| michael@0 | 95 | Bitmap* b = Bitmap::FromHBITMAP(mybmp, nullptr); |
| michael@0 | 96 | CLSID encoderClsid; |
| michael@0 | 97 | Status stat = GenericError; |
| michael@0 | 98 | if (b && GetEncoderClsid(L"image/png", &encoderClsid) != -1) { |
| michael@0 | 99 | stat = b->Save(filename, &encoderClsid, nullptr); |
| michael@0 | 100 | } |
| michael@0 | 101 | if (b) |
| michael@0 | 102 | delete b; |
| michael@0 | 103 | |
| michael@0 | 104 | // cleanup |
| michael@0 | 105 | GdiplusShutdown(gdiplusToken); |
| michael@0 | 106 | ReleaseDC(desktop, desktopdc); |
| michael@0 | 107 | DeleteObject(mybmp); |
| michael@0 | 108 | DeleteDC(mydc); |
| michael@0 | 109 | return stat == Ok ? 0 : 1; |
| michael@0 | 110 | } |
