Need help on putting a function into a button

Hi all,

I am using both Expression Blend and Visual studio to work on my project.I did a zoom function and i want to place it into a button,so whenever the user click on the button the zoom function will be activated.The problem is i don't how to implement it . Thank in advance those who helped me.


Below is the code for my zoom function.

public MainWindow()
{
this.InitializeComponent();

TransformGroup group = new TransformGroup();

ScaleTransform xform = new ScaleTransform();
group.Children.Add(xform);

TranslateTransform tt = new TranslateTransform();
group.Children.Add(tt);

imagePicture.RenderTransform = group;

imagePicture.MouseWheel += image_mousewheel;
imagePicture.MouseLeftButtonDown += image_MouseLeftButtonDown;
imagePicture.MouseLeftButtonUp += image_MouseLeftButtonUp;
imagePicture.MouseMove += image_MouseMove;
}


public void image_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
imagePicture.CaptureMouse();
var tt = (TranslateTransform)((TransformGroup)imagePicture.RenderTransform).Children.First(tr => tr is TranslateTransform);
start = e.GetPosition(border);
origin = new Point(tt.X, tt.Y);

}


public void image_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
imagePicture.ReleaseMouseCapture();
}

public void image_MouseMove(object sender, MouseEventArgs e)
{
if (!imagePicture.IsMouseCaptured) return;

var tt = (TranslateTransform)((TransformGroup)imagePicture.RenderTransform).Children.First(tr => tr is TranslateTransform);
Vector v = start - e.GetPosition(border);
tt.X = origin.X - v.X;
tt.Y = origin.Y - v.Y;
}

private void image_mousewheel(object sender, MouseWheelEventArgs e)
{

TransformGroup transformGroup = (TransformGroup)imagePicture.RenderTransform;
ScaleTransform transform = (ScaleTransform)transformGroup.Children[0];
RenderOptions.SetBitmapScalingMode(imagePicture, BitmapScalingMode.NearestNeighbor);


double zoom = e.Delta > 0 ? .01 : -.01;

transform.ScaleX += zoom;
transform.ScaleY += zoom;
}



The code appear in visual studio when the button is created

private void Zoom(object sender, RoutedEventArgs Args)
{

}


Basically i want to put the zoom function codes into the button.

Sorry i made a mistake on the codes for my zoom function, this is the correct one.


public MainWindow()
{
this.InitializeComponent();

TransformGroup group = new TransformGroup();

ScaleTransform xform = new ScaleTransform();
group.Children.Add(xform);

TranslateTransform tt = new TranslateTransform();
group.Children.Add(tt);

imagePicture.RenderTransform = group;

imagePicture.MouseWheel += image_mousewheel;
imagePicture.MouseLeftButtonDown += image_MouseLeftButtonDown;
imagePicture.MouseLeftButtonUp += image_MouseLeftButtonUp;
imagePicture.MouseMove += image_MouseMove;
}


private void image_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
imagePicture.CaptureMouse();
var tt = (TranslateTransform)((TransformGroup)imagePicture.RenderTransform).Children.First(tr => tr is TranslateTransform);
start = e.GetPosition(border);
origin = new Point(tt.X, tt.Y);

}


private void image_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
imagePicture.ReleaseMouseCapture();
}

private void image_MouseMove(object sender, MouseEventArgs e)
{
if (!imagePicture.IsMouseCaptured) return;

var tt = (TranslateTransform)((TransformGroup)imagePicture.RenderTransform).Children.First(tr => tr is TranslateTransform);
Vector v = start - e.GetPosition(border);
tt.X = origin.X - v.X;
tt.Y = origin.Y - v.Y;
}

private void image_mousewheel(object sender, MouseWheelEventArgs e)
{

TransformGroup transformGroup = (TransformGroup)imagePicture.RenderTransform;
ScaleTransform transform = (ScaleTransform)transformGroup.Children[0];
RenderOptions.SetBitmapScalingMode(imagePicture, BitmapScalingMode.NearestNeighbor);


double zoom = e.Delta > 0 ? .01 : -.01;

transform.ScaleX += zoom;
transform.ScaleY += zoom;
}