PCAM_STOP_CAPTURE_ROUTINE callback function (usbcamdi.h)
[CamStopCapture is not supported and may be altered or unavailable in the future. Instead, use CamStopCaptureEx. ]
A camera minidriver's CamStopCapture callback function performs any processing after the stream is stopped.
Syntax
PCAM_STOP_CAPTURE_ROUTINE PcamStopCaptureRoutine;
NTSTATUS PcamStopCaptureRoutine(
PDEVICE_OBJECT BusDeviceObject,
PVOID DeviceContext
)
{...}
Parameters
BusDeviceObject
Pointer to the camera minidriver's device object created by the USB hub.
DeviceContext
Pointer to the camera minidriver's device context.
Return value
CamStopCapture returns STATUS_SUCCESS or an appropriate error code. This return value is the completion code for the read IRP.
Remarks
Camera minidrivers that must maintain backward compatibility with the original USBCAMD must use the USBCAMD_DEVICE_DATA structure and its associated callback functions (that is, callback functions that do not contain the "Ex" suffix).
USBCAMD calls the minidriver's CamStopCapture callback function immediately after the isochronous video stream is stopped. Typically, a camera minidriver selects an alternate setting within the USB video streaming interface that uses no additional bandwidth.
This function is required.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Desktop |
| Header | usbcamdi.h (include Usbcamdi.h) |