C# WPF MouseLeftButtonDown 事件处理程序中的 Ctrl 键按下条件
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时间：2020-08-06 21:27:26 来源:igfitidea点击:
Ctrl key press condition in WPF MouseLeftButtonDown event-handler
提问by rem
How I can add an additional condition for a certain keyboard key, to a WPF MouseLeftButtonDownevent-handler?
如何将某个键盘键的附加条件添加到 WPFMouseLeftButtonDown事件处理程序？
For example Ctrl+ key
例如Ctrl+键
private void Grid_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
...
}
采纳答案by Stanislav Kniazev
private void Grid_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) {
if(Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl)) {
MessageBox.Show("Control key is down");
} else {
MessageBox.Show("Control key is up");
}
}
回答by 742
回答by Grzegorz Godlewski
In .NET 4.0 you could use:
在 .NET 4.0 中，您可以使用：
Keyboard.Modifiers.HasFlag(ModifierKeys.Control)
