windows 如何确定在按钮单击期间何时按下控制键
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How can I determine when control key is held down during button click
提问by rp.
How can I determine when the control key is held down during button click in a C# Windows program? I want one action to take place for Ctrl/Click and a different one for Click.
如何确定在 C# Windows 程序中单击按钮期间按住 Control 键的时间？我希望对 Ctrl/Click 执行一项操作，对 Click 执行另一项操作。
回答by Simon Wilson
And a little bit more:
还有一点：
private void button1_Click ( object sender, EventArgs e )
{
if( (ModifierKeys & Keys.Control) == Keys.Control )
{
ControlClickMethod();
}
else
{
ClickMethod();
}
}
private void ControlClickMethod()
{
MessageBox.Show( "Control is pressed" );
}
private void ClickMethod()
{
MessageBox.Show ( "Control is not pressed" );
}
回答by lesscode
Assuming WinForms, use Control.ModifierKeys, eg:
假设 WinForms，使用 Control.ModifierKeys，例如：
private void button1_Click(object sender, EventArgs e) {
MessageBox.Show(Control.ModifierKeys.ToString());
}
Assuming WPF, use Keyboard.Modifiers, eg:
假设 WPF，使用 Keyboard.Modifiers，例如：
private void Button_Click(object sender, RoutedEventArgs e) {
MessageBox.Show(Keyboard.Modifiers.ToString());
}
