Question

Hi I am looking at a tutorial which uses the camera and I came accross some methods that I need. Only problem is that they are in C# and I need them to be in VB. I have used a converter but it doesnt convert it properly.

private void VideoCamera_Initialized(object sender, object eventArgs)
{
    if (Initialized != null)
    {
        Initialized.Invoke(this, new EventArgs());
    }
}

public bool LampEnabled
{
    get { return (bool)_videoCameraLampEnabledPropertyInfo.GetGetMethod().Invoke(_videoCamera, new object[0]); }
    set { _videoCameraLampEnabledPropertyInfo.GetSetMethod().Invoke(_videoCamera, new object[] { value }); }
}

Here is the converted code and the errors:

Private Sub VideoCamera_Initialized(sender As Object, eventArgs As Object)
    If Initialized IsNot Nothing Then
        Initialized.Invoke(Me, New EventArgs())
    End If
End Sub

Public Property LampEnabled() As Boolean
    Get
        Return CBool(_videoCameraLampEnabledPropertyInfo.GetGetMethod().Invoke(_videoCamera, New Object(-1) {}))
    End Get
    Set(value As Boolean)
        _videoCameraLampEnabledPropertyInfo.GetSetMethod().Invoke(_videoCamera, New Object() {value})
    End Set
End Property

Errors:

Error 2 ‘Public Event Initialized(sender As Object, e As System.EventArgs)’ is an event, and cannot be called directly. Use a ‘RaiseEvent’ statement to raise an event.

In terms of the second method. It doesnt look like its been converted properly even though there isnt any errors

Answer 1

As the error states, you need to use RaiseEvent; code converters don’t know if it is, in fact, an event, or if it’s a delegate. And, of course, since VB.NET is an amazing language, you don’t need the Is Nothing check or the New Object(-1) {}, or the New Object() part before {value}.

Private Sub VideoCamera_Initialized(sender As Object, eventArgs As Object)
    RaiseEvent Initialized(Me, EventArgs.Empty)
End Sub

Public Property LampEnabled() As Boolean
    Get
        Return CBool(_videoCameraLampEnabledPropertyInfo.GetGetMethod().Invoke(_videoCamera, {}))
    End Get
    Set(value As Boolean)
        _videoCameraLampEnabledPropertyInfo.GetSetMethod().Invoke(_videoCamera, {value})
    End Set
End Property