Image Manager/CVBpy/QmlStreamDisplay

This example program is located in your CVB installation under %CVB%Tutorial/Image Manager/CVBpy/QmlStreamDisplay.

display.py:

# @brief Example for QML based streaming display.
 
import os, sys
import cvb
import cvb.ui
 
 
if sys.version_info >= (3, 11):
    from PySide6.QtCore import QObject, QUrl
    from PySide6.QtQml import qmlRegisterType
    from PySide6.QtWidgets import QApplication, QWidget
    from PySide6.QtQuick import QQuickView, QQuickPaintedItem
    from PySide6.QtGui import QIcon
else:
    from PySide2.QtCore import QObject, QUrl
    from PySide2.QtQml import qmlRegisterType
    from PySide2.QtWidgets import QApplication, QWidget
    from PySide2.QtQuick import QQuickView, QQuickPaintedItem
    from PySide2.QtGui import QIcon
 
 
 
if __name__ == "__main__":
 
    app = QApplication([])
    app.setOrganizationName('STEMMER IMAGING')
    app.setOrganizationDomain('https://www.stemmer-imaging.com/')
    app.setApplicationName('Display Python tutorial')
 
    # tell Windows the correct AppUserModelID for this process (shows icon in the taskbar)
    if sys.platform == 'win32':
        import ctypes
        myappid = u'stemmerimaging.commonvisionblox.pystreamdisplay.0'
        ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID(myappid)
    
        script_dir = os.path.dirname(os.path.realpath(__file__))
        icon_path = os.path.join(script_dir, 'Tutorial-Python_32x32.png')
        app.setWindowIcon(QIcon(icon_path))
 
    # load the device
    device = cvb.DeviceFactory.open(
        os.path.join(cvb.install_path(), "drivers", "CVMock.vin"),
        cvb.AcquisitionStack.Vin)
 
    # use a single stream handler to setup an acquisition thread and acquire images
    
    handler = cvb.SingleStreamHandler(device.stream())
    # create an image controller to interact with the UI
    image_controller = cvb.ui.ImageController()
 
    # register the display component with QML
    cvb.ui.ImageViewItem.register()
 
    # setup the QML UI
    view = QQuickView()
    view.setResizeMode(QQuickView.SizeRootObjectToView)
    context = view.rootContext()
    context.setContextProperty("mainImage", image_controller)
    filepath = os.path.dirname(os.path.realpath(__file__))
    view.setSource(QUrl.fromLocalFile(os.path.join(filepath,"main.qml")))
    view.resize(640, 480)
    view.show()
 
 
    # register the device image with UI controller to trigger automatic refreshes 
    image_controller.refresh(device.device_image, cvb.ui.AutoRefresh.On)
 
    # start the acquisition thread
    handler.run()
 
    # start the UI event handler
    app.exec_()
 
    # stop the acquisition after UI exits
    handler.try_finish()