C#学习总结（慢慢更新中）

 

1．  窗体的opacity属性可以实现窗体的渐显效果，窗体的TopMost属性this.TopMost=True可以是程序始终在前面.

2．  通过设置PictureBox的Ｄock属性和添加spliter控件可以实现窗体的分割.

3．  C#中添加API函数的方法，以SetMenuItemBitmaps为例子

[System..Runtime.Interopservices.DllImport(“user32”)]

Private static  extern int SetMenItemBitmaps{Intptr hMenu,int nPosition,int wFlags,IntPtr hBitmapUnchecked,IntPtr hBitmapChecked };

Const int MF_BYPOSITION=0x0400;

4. 实现渐变窗口背景的方法

   添加System.Drawing.Drawing2D空间的引用

   private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)

         {

              Graphics g=e.Graphics ;

              Color fcolor=Color.Blue ;

              Color Tcolor=Color.Yellow ;

     Brush b=new LinearGradientBrush (this.ClientRectangle ,fcolor,Tcolor,LinearGradientMode.ForwardDiagonal );

              g.FillRectangle (b,this.ClientRectangle );

         }

 

         private void Form1_Resize(object sender, System.EventArgs e)

         {

              this.Invalidate ();

         }

5.通过添加NotifyIcon、ContestMenu组件可以实现状态栏的状态区的使用.

参考代码:

static void Main()

         {

              Form1 f1=new Form1 ();

              f1.notifyIcon1 .Icon =new System .Drawing .Icon ("..//..//BICYCLE.ICO");

              f1.notifyIcon1 .Visible =true;

              f1.notifyIcon1 .Text ="BICYCLE";

              Application.Run ();

         }

 

         private void menuItem1_Click(object sender, System.EventArgs e)

         {

              Application.Exit ();

         }

private void timer1_Tick(object sender, System.EventArgs e)

         {

              if(notifyIcon1.Text =="BICYCLE")

              {

                   notifyIcon1.Icon =new System .Drawing .Icon ("..//..//CARS.ICO");

                   notifyIcon1.Text ="CARS";

}

              else

              {

                   notifyIcon1.Icon =new System .Drawing .Icon ("..//..//BICYCLE.ICO");

                   notifyIcon1.Text ="BICYCLE";

              }

         }

6.使用StatusBar控件实现状态栏信息的更新

参考代码：

private void Form1_Load(object sender, System.EventArgs e)

         {

              statusBar1.Panels .Add ("one");

              statusBar1.Panels [0].AutoSize =StatusBarPanelAutoSize.Spring ;

              statusBar1.Panels [0].Icon =new System .Drawing .Icon ("..//..//app.ico");

              statusBar1.Panels [0].BorderStyle =StatusBarPanelBorderStyle.Sunken;

              statusBar1.ShowPanels =true;

 

         }

 

         private void timer1_Tick(object sender, System.EventArgs e)

         {

              statusBar1.Panels [0].Text =DateTime.Now .ToString ();

         }

     }

7.在C#中使用动画光标的方法

使用SetCursor和LoadCursorFromFile二个API函数，

参考代码：

[DllImport("user32")]

              private static extern IntPtr SetCursor(IntPtr hCursor);

         [DllImport("user32")]

              private static extern IntPtr LoadCursorFromFile(string lpFileName);

         const int WM_SETCURSOR=0X0020;

         protected override void WndProc(ref System.Windows .Forms .Message  m)

         {

              switch(m.Msg )

              {

                   case WM_SETCURSOR:

                       IntPtr hCursor;

                       hCursor=LoadCursorFromFile("..//..//1.ani");

                       SetCursor(hCursor);

                       break;

                   default:

                       base.WndProc (ref m);

                       break;

              }

         }