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ModifierKeys Property
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Control.ModifierKeys Property

Gets a value indicating which of the modifier keys (SHIFT, CTRL, and ALT) is in a pressed state.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public static Keys ModifierKeys { get; }

Property Value

Type: System.Windows.Forms.Keys
A bitwise combination of the Keys values. The default is None.

The following code example hides a button when the CTRL key is pressed while the button is clicked. This example requires that you have a Button named button1 on a Form.

private void button1_Click(object sender, System.EventArgs e)
{
   /* If the CTRL key is pressed when the 
      * control is clicked, hide the control. */ 
   if(Control.ModifierKeys == Keys.Control)
   {
      ((Control)sender).Hide();
   }
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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