Move the WPF mouse over the image to increase, remove and restore, and click the trigger event effect.

<Grid>        <Canvas x:Name="LayoutRoot">            <Image Cursor="Hand" MouseLeftButtonDown="imgLogo1_MouseLeftButtonDown" MouseEnter="imgLogo1_MouseEnter"                    MouseLeave="imgLogo1_MouseLeave" Canvas.ZIndex="1" x:Name="imgLogo1" Canvas.Left="100"                    Canvas.Top="60" Height="100" Source="Image/Picture.jpg">                <Image.RenderTransform>                    <ScaleTransform x:Name="LogoScale" CenterX="90" CenterY="96">                    </ScaleTransform>                </Image.RenderTransform>            </Image>        </Canvas>    </Grid>

　　

 public partial class Window8 : Window    {        public Window8()        {            InitializeComponent();            timer = new System.Windows.Threading.DispatcherTimer();            timer.Interval = TimeSpan.FromMilliseconds(50);            timer.Tick += new EventHandler(timer_Tick);        }        private System.Windows.Threading.DispatcherTimer timer;        private ScaleDirection scaleDirection ;               void timer_Tick(object sender, EventArgs e)        {            AdjustScale(scaleDirection, LogoScale);        }        void AdjustScale(ScaleDirection scaleDirection, ScaleTransform scale)        {            if (scaleDirection == ScaleDirection.Down)            {                if (scale.ScaleX < 1.3)                {                    scale.ScaleX += 0.05; scale.ScaleY += 0.05;                }                else                    timer.Stop();            }            else            {                if (scale.ScaleX > 1.0)                {                    scale.ScaleX -= 0.05;                    scale.ScaleY -= 0.05;                }                else                    timer.Stop();            }        }        enum ScaleDirection        {            Up,            Down        }        private void imgLogo1_MouseEnter(object sender, MouseEventArgs e)        {            scaleDirection = ScaleDirection.Down;            timer.Start();        }        private void imgLogo1_MouseLeave(object sender, MouseEventArgs e)        {            scaleDirection = ScaleDirection.Up;            timer.Start();        }        private void imgLogo1_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)        {            MessageBox.Show("test");        }    }

Original article: http://www.csharpwin.com/dotnetspace/10339r6936.shtml

 

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