ByteScout Screen Capturing SDK - C++ (unmanaged) - Capture Video From Given Window - ByteScout

ByteScout Screen Capturing SDK – C++ (unmanaged) – Capture Video From Given Window

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How to capture video from given window in C++ (unmanaged) using ByteScout Screen Capturing SDK

The tutorial below will demonstrate how to capture video from given window in C++ (unmanaged)

The coding tutorials are designed to help you test the features without need to write your own code. What is ByteScout Screen Capturing SDK? It is the screen video recording SDK helps in quick implementation of screen video recording. WMV, AVI, WebM output options are available with adjustable quality, video size, framerate and video and audio codec. Includes special features like live multiple blacking out of selected areas, recording from web cam as main source and as overlay, optional watermarks for output video. It can help you to capture video from given window in your C++ (unmanaged) application.

Fast application programming interfaces of ByteScout Screen Capturing SDK for C++ (unmanaged) plus the instruction and the code below will help you quickly learn how to capture video from given window. In your C++ (unmanaged) project or application you may simply copy & paste the code and then run your app! Test C++ (unmanaged) sample code examples whether they respond your needs and requirements for the project.

Download free trial version of ByteScout Screen Capturing SDK from our website with this and other source code samples for C++ (unmanaged).

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CaptureFromGivenWindow.cpp
      
// CaptureFromEntireScreen.cpp : Defines the entry point for the console application. // #include "stdafx.h" #import "BytescoutScreenCapturing.dll" using namespace BytescoutScreenCapturingLib; using namespace std; void usage(ICapturer* capturer); void setParams(int argc, _TCHAR* argv[], ICapturer* capturer); int _tmain(int argc, _TCHAR* argv[]) { ::CoInitialize(0); // Create Capturer instance CLSID clsid_ScreenCapturer; CLSIDFromProgID(OLESTR("BytescoutScreenCapturing.Capturer"), &clsid_ScreenCapturer); ICapturer* capturer = NULL; ::CoCreateInstance(clsid_ScreenCapturer, NULL, CLSCTX_ALL, __uuidof(ICapturer), (LPVOID*) &capturer); if (!capturer) { _ftprintf(stdout, _T("Screen Capturer is not installed properly.")); ::CoUninitialize(); return 1; } capturer->put_RegistrationName(_T("demo")); capturer->put_RegistrationKey(_T("demo")); // Set capturing type capturer->put_CapturingType(catWindow); // Specify window to capture by its title. // Capturer will take the first window containing "Internet Explorer" in its title. capturer->put_WindowToCapture(_T("Internet Explorer")); // You can also capture only a part of the window by specifying capturing rectangle //capturer->put_CaptureRectLeft(25); //capturer->put_CaptureRectTop(25); //capturer->put_CaptureRectWidth(320); //capturer->put_CaptureRectHeight(240); // Set output video width and height capturer->put_OutputWidth(640); capturer->put_OutputHeight(480); // WMV and WEBM output use WMVVideoBitrate property to control output video bitrate // so try to increase it by x2 or x3 times if you think the output video are you are getting is laggy // capturer->put_WMVVideoBitrate(capturer->WMVVideoBitrate * 2); // uncomment to enable recording of semitransparent or layered windows (Warning: may cause mouse cursor flickering) // capturer->CaptureTransparentControls = true; // set border style ?apturer.CaptureAreaBorderType = cabtDashed; // Set output file name capturer->OutputFileName = _T("Output.wmv"); // Start capturing HRESULT hr = capturer->Run(); // IMPORTANT: if you want to check for some code if need to stop the recording then make sure you are // using Thread.Sleep(1) inside the checking loop, so you have the loop like // Do // Thread.Sleep(1) // While StopButtonNotClicked if (FAILED(hr)) { // Error handling CComBSTR s; capturer->get_LastError(&s); _ftprintf(stdout, _T("Capture failed: %s\n"), CString(s)); } else { _tprintf(_T("Starting capture - Hit a key to stop ...\n")); int i = 0; TCHAR *spin = _T("|/-\\"); // Show some progress while (!_kbhit()) { _tprintf(_T("\rEncoding %c"), spin[i++]); i %= 4; Sleep(50); } // Stop after key press capturer->Stop(); _tprintf(_T("\nDone.")); getchar(); } // Release Capturer capturer->Release(); capturer = NULL; ::CoUninitialize(); return 0; }

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stdafx.cpp
      
// stdafx.cpp : source file that includes just the standard includes // CaptureFromEntireScreen.pch will be the pre-compiled header // stdafx.obj will contain the pre-compiled type information #include "stdafx.h" // TODO: reference any additional headers you need in STDAFX.H // and not in this file

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stdafx.h
      
// stdafx.h : include file for standard system include files, // or project specific include files that are used frequently, but // are changed infrequently // #pragma once #ifndef _WIN32_WINNT // Allow use of features specific to Windows XP or later. #define _WIN32_WINNT 0x0501 // Change this to the appropriate value to target other versions of Windows. #endif #include <stdio.h> #include <tchar.h> #include <atlbase.h> #include <atlstr.h> #include <conio.h>

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