Animated Tray Icon Class

There was one reason why I sat down to write this class. And as is usually the case, necessity is the mother of invention. Well, it started off like this. I had a time consuming task going on and during this time I wanted to have an animated tray icon to appear in the tray to indicate the ongoing task. When this task got over, I needed a way to remove this. The examples I'd seen earlier couldn't by themselves address to my problem as, the task which I was performing was on a thread and since it didn't have any window, there was no proper way to set a timer or whatever to animate the icon in the tray. So, I was looking at some way to accomplish the same by making the animation to happen on a different thread than the one in which it is being invoked.

Basically, my anitrayicon class' constructor starts off by creating a thread and then this Thread Procedure creates an invisible window. The handle to this window is set into anitrayicon object's m_hWnd. All further messages to the tray icon are basically messages sent to this window. Thus, the main function of the WndProc for the Trayicon window is to wait for messages and call various Shell_Notifyicon() to accomplish the desired action and to animate the icon on a WM_TIMER message.

Here is how one uses it :

Using the AnimatedTrayIcon class

Have an object on the stack / heap.
void myFunc()
{
 AnimatedTrayIcon oTrayIcon;
 HICON* hIconArray = new HICON[5];
 hIconArray[0] = LoadIcon(............);//handle to icon 1
 hIconArray[1] = LoadIcon(............);//handle to icon 2
 hIconArray[2] = LoadIcon(............);//handle to icon 3
 hIconArray[3] = LoadIcon(............);//handle to icon 4
 hIconArray[4] = LoadIcon(............);//handle to icon 5
 oTrayIcon.SetFrameIconInfo(hIconArray,5);
 oTrayIcon.SetFrameRate(250);//in ms
 oTrayIcon.Start();
 ..
 ..
 ..
 ..

 //u can stop the tray icon here if u want by calling 
 oTrayIcon.Stop();
 ..
 ..
 //and then restart it at a later stage by calling 
 ..
 oTrayIcon.Continue();

 //long process.....

 //one needn't necessarily call Remove() if that is the only tray icon one  
 //needs to have the destructor automatically removes the icon 
}

Downloads

Download source - 3 Kb


Comments

  • There are no comments yet. Be the first to comment!

Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • At present, the most commonly deployed parallel file system is Lustre, and its adoption is growing across the HPC industry. According to Intersect 360 Research, "Through its leadership and involvement with OpenSFS, Cray advocates for the development of features that drive efficient performance at scale." Moreover, with help from Cray and OpenSFS, Lustre is gaining greater adoption across broader commercial application categories. As data and I/O requirements grow in commercial markets, technology vendors -- …

  • Migrating away from Windows Server 2003 is an investment in your organization's future, and there has never been a better time to begin the migration process. Take the next step to transform your datacenter by upgrading your server platform with leading edge Windows Operating Systems and SanDisk flash solutions.

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date