class QWindowCapture

This class is used for capturing a window. More…

Added in version 6.6.

Synopsis

Properties

• activeᅟ - Whether the capturing is currently active

• errorᅟ - The code of the last error

• errorStringᅟ - Human readable string describing the cause of error

• windowᅟ - The window for capturing

Methods

• def __init__()

• def captureSession()

• def error()

• def errorString()

• def isActive()

• def setWindow()

• def window()

Slots

• def setActive()

• def start()

• def stop()

Signals

• def activeChanged()

• def errorChanged()

• def errorOccurred()

• def windowChanged()

Static functions

• def capturableWindows()

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

Detailed Description

The class captures a window. It is managed by the QMediaCaptureSession class where the captured window can be displayed in a video preview object or recorded to a file.

Window Capture Limitations

The following limitations apply to using QWindowCapture :

• QWindowCapture is only supported with the FFmpeg backend.

See also

QMediaCaptureSession QCapturableWindow

class Error

Enumerates error codes that can be signaled by the QWindowCapture class. errorString() provides detailed information about the error cause.

Constant	Description
QWindowCapture.NoError	No error
QWindowCapture.InternalError	Internal window capturing driver error
QWindowCapture.CapturingNotSupported	Window capturing is not supported
QWindowCapture.CaptureFailed	Capturing window failed
QWindowCapture.NotFound	Selected window not found

Note

Properties can be used directly when from __feature__ import true_property is used or via accessor functions otherwise.

property activeᅟ: bool

This property holds whether the capturing is currently active..

See also

start() stop()

Access functions:

• isActive()

• setActive()

• Signal activeChanged()

property errorᅟ: QWindowCapture.Error

This property holds the code of the last error..

Access functions:

• error()

• Signal errorChanged()

property errorStringᅟ: str

This property holds a human readable string describing the cause of error..

Access functions:

• errorString()

• Signal errorChanged()

property windowᅟ: QCapturableWindow

This property holds the window for capturing..

See also

capturableWindows

Access functions:

• window()

• setWindow()

• Signal windowChanged()

__init__([parent=None])

Parameters:

parent – QObject

Constructs a new QWindowCapture object with parent.

activeChanged(arg__1)

Parameters:

arg__1 – bool

Notification signal of property activeᅟ .

static capturableWindows()

Return type:

.list of QCapturableWindow

Returns a list of QCapturableWindow objects that is available for capturing.

captureSession()

Return type:

QMediaCaptureSession

error()

Return type:

Error

Getter of property errorᅟ .

errorChanged()

Notification signal of property errorᅟ .

errorOccurred(error, errorString)

Parameters:

• error – Error

• errorString – str

Signals when an error occurs, along with the errorString.

errorString()

Return type:

str

Getter of property errorStringᅟ .

isActive()

Return type:

bool

Getter of property activeᅟ .

setActive(active)

Parameters:

active – bool

See also

isActive()

Setter of property activeᅟ .

setWindow(window)

Parameters:

window – QCapturableWindow

See also

window()

Setter of property windowᅟ .

start()

Starts capturing the window .

This is equivalent to setting the active property to true.

stop()

Stops capturing.

This is equivalent to setting the active property to false.

window()

Return type:

QCapturableWindow

See also

setWindow()

Getter of property windowᅟ .

windowChanged(window)

Parameters:

window – QCapturableWindow

Notification signal of property windowᅟ .