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Capture screen activity video from the desktop

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T O P I C R E V I E W
PeterPanino	Posted - Jan 20 2016 : 10:54:18 Is there any other example on how to capture screen activity video from the desktop except the "Record Desktop to AVI" demo?
8 L A T E S T R E P L I E S (Newest First)
PeterPanino	Posted - Jan 21 2016 : 18:25:02 Thanks, meanwhile I've solved the problem and installed the component.
xequte	Posted - Jan 21 2016 : 16:17:22 You'll probably get better advice on this on StackOverflow. Nigel Xequte Software www.xequte.com nigel@xequte.com
PeterPanino	Posted - Jan 21 2016 : 04:08:49 I've found this: Professional Screen Camera Component v.5.2.3.0 (http://torry.net/authorsmore.php?id=6933) which is freeware with source and the contained compiled demo exe works very well with many options. However I cannot get it to compile in Delphi 10 Seattle: In scHighTimer.pas the compiler complains: procedure TimeCallBack(uTimerID, uMessage: UINT; dwUser, dw1, dw2: DWORD); stdcall; begin PostMessage(HWND(dwUser), WM_TIMER, uTimerID, 0); end; // [dcc32 Error] scHighTimer.pas(344): E2010 Incompatible types: 'NativeUInt' and 'Cardinal': FTimerID := TimeSetEvent(FInterval, FInterval, TimeCallBack, FWindowHandle, TIME_PERIODIC);
PeterPanino	Posted - Jan 21 2016 : 02:57:26 Thanks Nigel, this demo does not crash anymore. However, how can I get a REAL-TIME screen recording? • When I set the rate value in CreateAVIFile to 1, then the playback is not fluent (= 1 frame per second). • When I set the rate value in CreateAVIFile to 10, then the playback is too fast. • When I set the rate value in CreateAVIFile to 5, then the playback is both not fluent and too fast.
xequte	Posted - Jan 20 2016 : 17:09:04 Hi Peter Here is the latest version of the demo: attach/xequte/201612017720_DesktopToAvi2.zip 13.59 KB The two changes you mention should not be necessary and I cannot reproduce them. What is the nature of the crash you encounter? Regarding the timing issue, do other compressors give the same result? Nigel Xequte Software www.xequte.com nigel@xequte.com
PeterPanino	Posted - Jan 20 2016 : 15:03:31 Seems I've found the culprits: • Instead of creating and destroying hiddenView before/after screen recording respectively, put the hiddenView on the form at design time. Can also be invisible. • In the Timer event handler place a call to Application.ProcessMessages; Now it works. The only issue now is: The recorded screen video runs too fast. I've set the Timer to 40 ms and and rate in CreateAVIFile to 25, which should give real-time, or am I wrong?
PeterPanino	Posted - Jan 20 2016 : 14:38:58 Unfortunately, I always get an AV with this demo. Couldn't find the bug yet. Any idea? Tried everything: Other codecs, other timings. Any idea?
xequte	Posted - Jan 20 2016 : 12:31:46 Hi No, that is the only demo we have for that. Nigel Xequte Software www.xequte.com nigel@xequte.com