CODEWITHSUNDEEP
.netsilverlight
KdgDev
KdgDev

Reputation: 14529

Remove all ink from an InkPresenter control

I'm using an InkPresenter control and I've set it up so I can drawn simple black lines on it, with this code:

private Stroke newstroke;

public MainPage()
{
    InitializeComponent();
}

private void btnDownHandler(object sender, MouseButtonEventArgs e)
{
    inkP.CaptureMouse();
    newstroke = new Stroke();

    //Add stylus points via Getter-method, use inkP as argument.
    newstroke.StylusPoints.Add(e.StylusDevice.GetStylusPoints(inkP));

    //Add captured strokes to canvas.
    inkP.Strokes.Add(newstroke);
}

private void btnUpHandler(object sender, MouseButtonEventArgs e)
{
    //Set stroke object to NULL and stop capturing the mouse.
    newstroke = null;
    inkP.ReleaseMouseCapture();
}

private void mouseMoveHandler(object sender, MouseEventArgs e)
{
    //Check for NULL, see btnUpHandler
    if (newstroke != null) {
        //If not NULL, keep adding stylus points to the Stroke object.
        newstroke.StylusPoints.Add(e.StylusDevice.GetStylusPoints(inkP));
    }
}

My problem is: I want to implement a button, which I click, and it removes everything that was previously added to the InkPresenter.

I've tried inkP.Children.Clear(); but that didn't work. I've tried inkP.Strokes.Remove(newstroke). Didn't work either.

Is there no easy function to remove all

Upvotes: 2

Views: 343

Answers (1)

keyboardP
keyboardP

Reputation: 69372

Try inkP.Strokes.Clear();, not Children.Clear();

Upvotes: 1

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