C#：隔离点击任务栏上的图标时的“最小化或者恢复”的效果

        #region 区别 任务栏中点击窗体图标（最小化|恢复）与点击最小化按钮

        private int WM_SYSCOMMAND = 0x112;
        private long SC_MINIMIZE = 0xF020;
        protected override void WndProc(ref Message m)
        {
            if (m.Msg == WM_SYSCOMMAND)
            {
                if (m.WParam.ToInt64() == SC_MINIMIZE && m.LParam.ToString() != "0")    //m.LParam.ToString() != "0" 表示任务栏中点击窗体图标（最小化|恢复）
                {
                    HideMainForm(); //这里直接将窗体图盘化//this.isMinBoxHited = true;    //点击的是最小化按钮 通过中间变量不可行
                    return;
                }
            }
            base.WndProc(ref m);
        }

        #endregion

    private int WM_SYSCOMMAND = 0x112;  
    private long SC_MAXIMIZE = 0xF030;  
    private long SC_MINIMIZE = 0xF020;  
    private long SC_CLOSE = 0xF060;  
    protected override void WndProc(ref Message m)  
    {  
        if (m.Msg == WM_SYSCOMMAND)  
        {  
            if (m.WParam.ToInt64() == SC_MAXIMIZE)  
            {  
                //MessageBox.Show("MAXIMIZE ");  
                return;  
            }  
            if (m.WParam.ToInt64() == SC_MINIMIZE)  
            {  
                //MessageBox.Show("MINIMIZE ");  
                return;  
            }  
            if (m.WParam.ToInt64() == SC_CLOSE)  
            {  
                //MessageBox.Show("CLOSE ");  
                return;  
            }  
        }  
        base.WndProc(ref m);  
    }