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.
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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();
}
}
}
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