1 [System.Runtime.InteropServices.DllImport("user32.dll ")]
2 public static extern int SetWindowLong(IntPtr hWnd, int nIndex, int wndproc);
3 [System.Runtime.InteropServices.DllImport("user32.dll ")]
4 public static extern int GetWindowLong(IntPtr hWnd, int nIndex);
5
6 public const int GWL_STYLE = -16;
7 public const int WS_DISABLED = 0x8000000;
8
9 public static void SetControlEnabled(Control c, bool enabled)
10 {
11 if (enabled)
12 { SetWindowLong(c.Handle, GWL_STYLE, (~WS_DISABLED) & GetWindowLong(c.Handle, GWL_STYLE)); }
13 else
14 { SetWindowLong(c.Handle, GWL_STYLE, WS_DISABLED + GetWindowLong(c.Handle, GWL_STYLE)); }
15 }
16
17 private void button2_Click(object sender, System.EventArgs e)
18 {
19 SetControlEnabled(this.button1, false);
20 this.button1.ForeColor = Color.White;
21 }
这个操作不是直接改变Enable 而是去掉它的鼠标绑定