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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /testing/tools/screenshot/win32-screenshot.cpp | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'testing/tools/screenshot/win32-screenshot.cpp')
-rw-r--r-- | testing/tools/screenshot/win32-screenshot.cpp | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/testing/tools/screenshot/win32-screenshot.cpp b/testing/tools/screenshot/win32-screenshot.cpp new file mode 100644 index 000000000..0a357ef2f --- /dev/null +++ b/testing/tools/screenshot/win32-screenshot.cpp @@ -0,0 +1,116 @@ +/* + * Copyright (c) 2009, The Mozilla Foundation + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Mozilla Foundation nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY The Mozilla Foundation ''AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL The Mozilla Foundation BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Contributors: + * Ted Mielczarek <ted.mielczarek@gmail.com> + */ +/* + * win32-screenshot.cpp: Save a screenshot of the Windows desktop in .png format. + * If a filename is specified as the first argument on the commandline, + * then the image will be saved to that filename. Otherwise, the image will + * be saved as "screenshot.png" in the current working directory. + */ + + // VS2015: Platform SDK 8.1's GdiplusTypes.h uses the min macro +#undef NOMINMAX +#undef WIN32_LEAN_AND_MEAN +#include <windows.h> +#include <gdiplus.h> + +// Link w/ subsystem windows so we don't get a console when executing +// this binary. +#pragma comment(linker, "/SUBSYSTEM:windows /ENTRY:wmainCRTStartup") + +using namespace Gdiplus; + +// From http://msdn.microsoft.com/en-us/library/ms533843%28VS.85%29.aspx +static int GetEncoderClsid(const WCHAR* format, CLSID* pClsid) +{ + UINT num = 0; // number of image encoders + UINT size = 0; // size of the image encoder array in bytes + + ImageCodecInfo* pImageCodecInfo = nullptr; + + GetImageEncodersSize(&num, &size); + if(size == 0) + return -1; // Failure + + pImageCodecInfo = (ImageCodecInfo*)(malloc(size)); + if(pImageCodecInfo == nullptr) + return -1; // Failure + + GetImageEncoders(num, size, pImageCodecInfo); + + for(UINT j = 0; j < num; ++j) + { + if( wcscmp(pImageCodecInfo[j].MimeType, format) == 0 ) + { + *pClsid = pImageCodecInfo[j].Clsid; + free(pImageCodecInfo); + return j; // Success + } + } + + free(pImageCodecInfo); + return -1; // Failure +} + +#ifdef __MINGW32__ +extern "C" +#endif +int wmain(int argc, wchar_t** argv) +{ + GdiplusStartupInput gdiplusStartupInput; + ULONG_PTR gdiplusToken; + GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, nullptr); + + HWND desktop = GetDesktopWindow(); + HDC desktopdc = GetDC(desktop); + HDC mydc = CreateCompatibleDC(desktopdc); + int width = GetSystemMetrics(SM_CXSCREEN); + int height = GetSystemMetrics(SM_CYSCREEN); + HBITMAP mybmp = CreateCompatibleBitmap(desktopdc, width, height); + HBITMAP oldbmp = (HBITMAP)SelectObject(mydc, mybmp); + BitBlt(mydc,0,0,width,height,desktopdc,0,0, SRCCOPY|CAPTUREBLT); + SelectObject(mydc, oldbmp); + + const wchar_t* filename = (argc > 1) ? argv[1] : L"screenshot.png"; + Bitmap* b = Bitmap::FromHBITMAP(mybmp, nullptr); + CLSID encoderClsid; + Status stat = GenericError; + if (b && GetEncoderClsid(L"image/png", &encoderClsid) != -1) { + stat = b->Save(filename, &encoderClsid, nullptr); + } + if (b) + delete b; + + // cleanup + GdiplusShutdown(gdiplusToken); + ReleaseDC(desktop, desktopdc); + DeleteObject(mybmp); + DeleteDC(mydc); + return stat == Ok ? 0 : 1; +} |