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sskodje / ScreenRecorderLib

A .NET library for screen recording in Windows, using native Microsoft Media Foundation for realtime encoding to h264 video or PNG images.
MIT License
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Minimized Window not recorded #303

Closed sandeepmohil closed 4 months ago

sandeepmohil commented 4 months ago

While recording a Win Forum Application , Windows Handle is being paased. this.Handle

Recording works fine only when Window is visible. When Window is minimized black screen is recorded instead of the app.

Is there a way to fix this ?

Logs :

2024-07-02 16:11:14.044 [DEBUG] [RecordingManager.cpp | ConfigureOutputDir: 144] >> Video output folder is ready 2024-07-02 16:11:14.045 [INFO] [RecordingManager.cpp | operator (): 284] >> Starting recording task 2024-07-02 16:11:14.195 [DEBUG] [OutputManager.cpp | BeginRecording: 103] >> Sink Writer initialized 2024-07-02 16:11:14.199 [DEBUG] [RecordingManager.cpp | StartRecorderLoop: 705] >> Changed Recording Status to Recording 2024-07-02 16:11:17.927 [INFO] [WindowsGraphicsCapture.c | ProcessRecordingTim: 456] >> Restarted Windows Graphics Capture 2024-07-02 16:11:19.877 [DEBUG] [RecordingManager.cpp | EndRecording: 337] >> Stopped recording task 2024-07-02 16:11:19.910 [DEBUG] [RecordingManager.cpp | StartRecorderLoop: 698] >> Recording task was cancelled 2024-07-02 16:11:19.912 [INFO] [OutputManager.cpp | FinalizeRecording: 133] >> Cleaning up resources 2024-07-02 16:11:19.912 [INFO] [OutputManager.cpp | FinalizeRecording: 134] >> Finalizing recording 2024-07-02 16:11:19.914 [DEBUG] [CMFSinkWriterCallback.h | OnFinalize: 18] >> CMFSinkWriterCallback::OnFinalize 2024-07-02 16:11:19.940 [DEBUG] [OutputManager.cpp | FinalizeRecording: 157] >> Shut down IMFMediaSink 2024-07-02 16:11:19.940 [INFO] [RecordingManager.cpp | operator (): 306] >> Exiting recording task 2024-07-02 16:11:19.952 [DEBUG] [ScreenCaptureManager.cpp | CaptureThreadProc:1006] >> Exiting CaptureThreadProc 2024-07-02 16:11:19.960 [DEBUG] [RecordingManager.cpp | SetRecordingComplet: 406] >> Changed Recording Status to Idle 2024-07-02 16:11:19.960 [DEBUG] [RecordingManager.cpp | SetRecordingComplet: 411] >> Sent Recording Complete callback

sskodje commented 4 months ago

Hi! When windows are minimized, they are no longer rendered, so there is unfortunately nothing to record. You got to make sure not to minimize them.

SumitKumar-89 commented 4 months ago

Hii @sskodje I know that when window is minimized , it is no longer to rendered. So it's become black screen . But we want to record/ captured wpf application 's screen when window is minimized. Like recording must be continues while windows minimized

So is there any way to fix this ???

sskodje commented 4 months ago

So you want to record a still frame of the window? Try commenting out this line: https://github.com/sskodje/ScreenRecorderLib/blob/bcad5cf06fb4f7ed66dd8db5dc855a220fa7313b/ScreenRecorderLibNative/WindowsGraphicsCapture.cpp#L447

SumitKumar-89 commented 4 months ago

@sskodje , M working on application with dashboard having windows with charts which are being updated dynamically ..This is the reason I want to record the application window screen even when minimized. So can you help with this scenario?

sskodje commented 4 months ago

When you minimize a window, the operating system stops rendering it to desktop. Therefore it no longer sends any textures to the APIs this library uses to record video. So no, i cannot help you record windows that are minimized.

SumitKumar-89 commented 4 months ago

So , is there any indirect way to record the screen when the window is minimized.

On Wed, Jul 3, 2024, 2:44 PM Sverre Skodje @.***> wrote:

When you minimize a window, the operating system stops rendering it to desktop. Therefore it no longer sends any textures to the APIs this library uses to record video. So no, i cannot help you record windows that are minimized.

— Reply to this email directly, view it on GitHub https://github.com/sskodje/ScreenRecorderLib/issues/303#issuecomment-2205509588, or unsubscribe https://github.com/notifications/unsubscribe-auth/ATF6AUCY752D7UP2TB4SDCLZKO6JHAVCNFSM6AAAAABKHITCMSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDEMBVGUYDSNJYHA . You are receiving this because you commented.Message ID: @.***>

aqibbanday commented 4 months ago

So , is there any indirect way to record the screen when the window is minimized. … On Wed, Jul 3, 2024, 2:44 PM Sverre Skodje @.> wrote: When you minimize a window, the operating system stops rendering it to desktop. Therefore it no longer sends any textures to the APIs this library uses to record video. So no, i cannot help you record windows that are minimized. — Reply to this email directly, view it on GitHub <#303 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/ATF6AUCY752D7UP2TB4SDCLZKO6JHAVCNFSM6AAAAABKHITCMSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDEMBVGUYDSNJYHA . You are receiving this because you commented.Message ID: @.>

No