12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152 |
- namespace System.Windows.Forms
- {
- public class KeyEventArgs : EventArgs
- {
- public virtual bool Alt => (KeyData & Keys.Alt) == Keys.Alt;
- public bool Control => (KeyData & Keys.Control) == Keys.Control;
- public bool Handled { get; set; }
- public Keys KeyCode
- {
- get
- {
- Keys keys = KeyData & Keys.KeyCode;
- if (!Enum.IsDefined(typeof(Keys), (int)keys))
- {
- return Keys.None;
- }
- return keys;
- }
- }
- public int KeyValue => (int)(KeyData & Keys.KeyCode);
- public Keys KeyData { get; }
- public Keys Modifiers => KeyData & Keys.Modifiers;
- public virtual bool Shift => (KeyData & Keys.Shift) == Keys.Shift;
- private bool suppressKeyPress;
- public bool SuppressKeyPress
- {
- get => suppressKeyPress;
- set
- {
- suppressKeyPress = value;
- Handled = value;
- }
- }
- public KeyEventArgs(Keys keyData)
- {
- KeyData = keyData;
- }
- }
- public delegate void KeyEventHandler(object sender, KeyEventArgs e);
- }
|