intmouseWheelDelta = (int)(deltaY / TouchMoveThreshold) * SystemParameters.WheelScrollLines; // 创建模拟的鼠标滚动事件参数 varmouseWheelEventArgs =newMouseWheelEventArgs(Mouse.PrimaryDevice, Environment.TickCount, mouseWheelDelta); mouseWheelEventArgs.RoutedEvent = UIElement.MouseWheelEvent; DataGrid_MouseWheel...
private void UIElement_MouseWheel(object sender, MouseWheelEventArgs e) { // 获取滚动量 double delta = e.Delta; // 根据滚动量执行相应操作 if (delta > 0) { // 向上滚动 Console.WriteLine("Mouse Wheel Scrolled Up"); // 在这里添加向上滚动的逻辑 } else if (delta < 0) { // 向...
= null) { if (scrollViewer.ViewportHeight + scrollViewer.VerticalOffset >= scrollViewer.ExtentHeight && e.Delta <= 0) { scrollViewer.LineDown(); } else if (scrollViewer.VerticalOffset == 0 && e.Delta >= 0) { scrollViewer.LineUp(); } } } public ScrollViewer GetScrollViewer(UIElement...
Delta; bool isScrollingUp = delta > 0; // 根据需要执行操作 if (isScrollingUp) { // 向上滚动 } else { // 向下滚动 } } 在WPF应用程序中捕获鼠标滚轮事件可以用于实现各种功能,例如滚动内容、缩放图像、切换页面等。根据具体的应用场景,可以选择使用不同的WPF控件和功能来实现所需的交互效果。 腾讯云...
MouseWheel和PreviewWheel事件,主要是处理鼠标滚轮事件,MousewheelEventargs有一个属性Delta属性,它记录鼠标滚轮的刻度,现在的鼠标每滚一下刻度是120,转向用户的时候就是-120.可以利用systemprarameters。IsMouseWheelPresent得知鼠标是否有滚轮。 Mouse类的静态方法也可以获取鼠标的位置和状态,也具有静态方法可以添加或删除鼠标...
{// 设置鼠标滚动的差值int mouseWheelDelta=(int)(deltaY/TouchMoveThreshold)*SystemParameters.WheelScrollLines;// 创建模拟的鼠标滚动事件参数varmouseWheelEventArgs=newMouseWheelEventArgs(Mouse.PrimaryDevice,Environment.TickCount,mouseWheelDelta);mouseWheelEventArgs.RoutedEvent=UIElement.MouseWheelEvent;DataGrid_...
WPF鼠标事件详解
if(transform.ScaleX + delta < 1) return; transform.CenterX =pointToContent.X; transform.CenterY =pointToContent.Y; 这样就很大程度上减少了图片的跳跃。但还是有小幅度的差距。 所以运用算法可以来弥补中间的差距。具体参看第一次加入的DowheelZoom ...
privatevoidradRibbonView_MouseWheel(objectsender,MouseWheelEventArgse){MessageBox.Show("The mouse wheel has changed: "+e.Delta);} You can attach to the other mouse events in the same way. Not finding the help you need? Contact Support
327 /// When flags indicate PointerFlag.WHEEL, this value indicates the distance the wheel is rotated, expressed in multiples or factors of WHEEL_DELTA. A positive value indicates that the wheel was rotated forward and a negative value indicates that the wheel was rotated backward. ...