C# enable為false時不變顏色

標籤：顏色   ext   sys   isa   etc   handle   control   去掉   dex   

 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             else14             { 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         }
這個操作不是直接改變Enable 而是去掉它的滑鼠綁定

 

C# enable為false時不變顏色