B4J Question ZoomImageView - capture cursor position

Peter Meares · Dec 17, 2020

I was playing with ZoomImageView and I wanted to know if I can capture the X and Y position of the cursor.

Thanks

Erel · Dec 20, 2020

The class code is inside the b4xlib file (it is a zip file).

Take it and modify pnl_Touch. The position is available there.

Peter Meares · Dec 20, 2020

Thanks, that has allowed me to play around.
Moved the code to a module, and added this:

B4X:

    else if Action = pnl.TOUCH_ACTION_MOVE_NOTOUCH Then ' Added here
        If xui.SubExists(mCallBack, mEventName & "_MouseMoved", 0) Then
            CallSub3(mCallBack, mEventName & "_MouseMoved", X1, Y1)
        End If
    Else
        'Log("touch cancelled")
    End If

and this:

B4X:

Private Sub ZoomImageView1_MouseMoved(X As Double, Y As Double)
    Log("Move")
    TF_Coords.Text = $"${X} , ${Y}"$
    Log($"X = ${X} , ${Y}"$)

End Sub

B4J Question ZoomImageView - capture cursor position

Peter Meares

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Erel

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Peter Meares

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B4J Question ZoomImageView - capture cursor position

Peter Meares

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Erel

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