【发布时间】:2012-07-11 16:02:05
【问题描述】:
我是使用 WPF 的新手。我有一个带有数据网格的 WPF 窗口,当双击发生时,它会启动一个进程。这很好用,但是当我在平板电脑(使用 Windows 7)中使用触摸屏执行此操作时,该过程永远不会发生。所以我需要用触摸事件来模拟双击事件。谁能帮我做这件事,好吗?
【问题讨论】:
标签: c# wpf datagridview mouse emulation
我是使用 WPF 的新手。我有一个带有数据网格的 WPF 窗口,当双击发生时,它会启动一个进程。这很好用,但是当我在平板电脑(使用 Windows 7)中使用触摸屏执行此操作时,该过程永远不会发生。所以我需要用触摸事件来模拟双击事件。谁能帮我做这件事,好吗?
【问题讨论】:
标签: c# wpf datagridview mouse emulation
请参阅How to simulate Mouse Click in C#? 了解如何模拟鼠标单击(在 Windows 窗体中),但它可以通过以下方式在 WPF 中工作:
using System.Runtime.InteropServices;
namespace WpfApplication1
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint cButtons, uint dwExtraInfo);
private const int MOUSEEVENTF_LEFTDOWN = 0x02;
private const int MOUSEEVENTF_LEFTUP = 0x04;
private const int MOUSEEVENTF_RIGHTDOWN = 0x08;
private const int MOUSEEVENTF_RIGHTUP = 0x10;
public void DoMouseClick()
{
//Call the imported function with the cursor's current position
int X = //however you get the touch coordinates;
int Y = //however you get the touch coordinates;
mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, X, Y, 0, 0);
}
}
}
【讨论】:
先添加一个鼠标事件点击函数:
/// <summary>
/// Returns mouse click.
/// </summary>
/// <returns>mouseeEvent</returns>
public static MouseButtonEventArgs MouseClickEvent()
{
MouseDevice md = InputManager.Current.PrimaryMouseDevice;
MouseButtonEventArgs mouseEvent = new MouseButtonEventArgs(md, 0, MouseButton.Left);
return mouseEvent;
}
将点击事件添加到您的 WPF 控件之一:
private void btnDoSomeThing_Click(object sender, RoutedEventArgs e)
{
// Do something
}
最后,从任意函数调用点击事件:
btnDoSomeThing_Click(new object(), MouseClickEvent());
要模拟双击,请添加一个双击事件,如 PreviewMouseDoubleClick 并确保任何代码都在单独的函数中开始:
private void lvFiles_PreviewMouseDoubleClick(object sender, MouseButtonEventArgs e)
{
DoMouseDoubleClick(e);
}
private void DoMouseDoubleClick(RoutedEventArgs e)
{
// Add your logic here
}
要调用双击事件,只需从另一个函数(如 KeyDown)调用它:
private void someControl_KeyDown(object sender, System.Windows.Input.KeyEventArgs e)
{
if (e.Key == Key.Enter)
DoMouseDoubleClick(e);
}
【讨论】: