Urgent: GTK2 systray icon with single click action

I need you to create an application in C or C++ which will work in Linux and use GTK2 libraries (as less libraries as possible). The application will only put an icon to system tray (as like Pidgin, for example). It must do that in some standard way, so that all common window managers understand that and show the icon in systray. The icon file (transparent png image) will be configurable on command line. When user clicks the tray icon, it executes a program given on command line as well. So for example, it will be called as: systrayicon --iconfile /usr/share/icons/16x16/actions/[login to view URL] --command /sbin/shutdown & I need this developed in 1 day, so please do not bid if you are not able to start right now. Thank you.