C#实现带消息数的App图标

上次写了一篇博文,但是每次更新图标时,桌面会闪烁(刷新),有博友说人家的图标都不会刷新,还能动画.我想了一下,如果要达到这个效果,可以用form来实现,就是在form中嵌入一个图片,然后用一个label来动态显示消息数,关键是将form的边框隐藏,背景设为透明即可.如果要有旋转或者缩放动画,都可以用c#来实现.

using system;
using system.collections.generic;
using system.componentmodel;
using system.data;
using system.drawing;
using system.linq;
using system.text;
using system.windows.forms;

namespace aopdemo
{
  public partial class appiconmsg : form
  {
    public appiconmsg()
    {
      initializecomponent();
      //设置背景为透明
      this.backcolor = color.fromargb(116, 164, 2);
      this.transparencykey = this.backcolor; 
      
    }

    private void appiconmsg_load(object sender, eventargs e)
    {
      this.width = 64;
      this.height = 64;
      this.label1.text = "99";
      this.timer1.enabled = true;
      
    }

    // drag it around the screen
    private const int wm_nchittest = 0x84;
    private const int htcaption = 0x2;
    protected override void wndproc(ref message m)
    {
      //disable mousedoubleclick on form
      if (m.msg == wm_lbuttondblclk)
      {
        form2 frm = new form2(msg);
        frm.show();
        //this.close();
        return;
      }

      if (m.msg == wm_nclbuttondblclk)
      {
        form2 frm = new form2(msg);
        frm.show();
        // this.close();
        return;
      }

      //drag
      if (m.msg == wm_nchittest)
        m.result = new intptr(htcaption);
      else
        base.wndproc(ref m);
    }
    private int msg = 0;
    private void timer1_tick(object sender, eventargs e)
    {
      int num = new random().next(1, 100);
      msg = num;
      this.label1.text = num.tostring();
    }

    const int wm_lbuttondblclk = 0x0203;//client area
    const int wm_nclbuttondblclk = 0x00a3;//non-client area
    private void toolstripexit_click(object sender, eventargs e)
    {
      this.close();
    }

  }
}