Failed to capture when working from inside a remote desktop app

[morya]

Press ENTER to stop recording...Capture failed -2147467262
Exception in thread Thread-1 (<lambda>):
Traceback (most recent call last):
  File "D:\Python312\Lib\threading.py", line 1073, in _bootstrap_inner
    self.run()
  File "D:\Python312\Lib\threading.py", line 1010, in run
    self._target(*self._args, **self._kwargs)
  File "D:\pyws\demo1\wincam_example\t1.py", line 78, in <lambda>
    self._thread = Thread(target=lambda: self.video_thread(x, y, w, h, fps))
                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\pyws\demo1\wincam_example\t1.py", line 51, in video_thread
    frame, timestamp = camera.get_bgr_frame()
                       ^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\user\.virtualenvs\pyws-enCgLOFr\Lib\site-packages\wincam\dxcam.py", line 58, in get_bgr_frame
    raise Exception(f"Failed to start capture, error code {f'{-hr:02x}'}")
Exception: Failed to start capture, error code 7fffbffe

sample code was copied from example folder of this repo.

examples/video.py

[lovettchris]

Hmmm, that will need some debugging, but the fact that it failed before even reaching the error message "CreateCaptureSession is not supported on this version of Windows" means you might have a GPU problem, do you know what GPU you are using?

wincam requires Windows 10 version 10.0.26100.0 or later, or Windows 11. And you must have a GPU that supports DirectX 11. Specifically we call D3D11CreateDevice asking for hardware support for D3D11_SDK_VERSION on D3D11_CREATE_DEVICE_BGRA_SUPPORT images.

[blaxkwidow]

check #6

[mrAntiUser]

I confirm

Failed to start capture, error code 7fffbffe
  File "E:\Dev\Project\Python\ddd\main.py", line 213, in copy_backup_proc
    frame, _ = camera.get_bgr_frame()
               ^^^^^^^^^^^^^^^^^^^^^^
  File "E:\Dev\Project\Python\ddd\main.py", line 166, in copy_backup
    self._modifyCallback(self._src_dir, loc_path)
  File "E:\Dev\Project\Python\ddd\main.py", line 190, in <lambda>
    threading.Timer(DELAY_BEFORE_BACKUP, lambda: self.copy_backup()).start()
                                                 ^^^^^^^^^^^^^^^^^^
Exception: Failed to start capture, error code 7fffbffe

win10, dx12, rtx4080

[WHalcyon]

Getting the same Error: Failed to start capture, error code 7fffbffe running one of the examples while meeting all requirements.

[lovettchris]

Try moving your VM to windows 11. I do have Azure VM's running Windows 11 where wincam is working perfectly.