如何隐藏程序（How to hide programs）.docVIP

如何隐藏程序（How to hide programs） Design tray icon program with VC China University of Mining and Technology Songduanzhi Windows95/98/NT/2000, on the right side of the taskbar (tray) resident several icons, such as the switch the input method icon, volume control icon, we also often meet with tray icon software, such as Kingsoft, real-time monitoring function of antivirus software, etc.. These software run in the background, usually does not take up too much screen resources, only a small sign on the notification bar. If necessary, we can do menu manipulation or activate the main window by clicking the icon with the mouse. Sometimes the programs we write ourselves want similar results. This article details the design of this tray icon program using VC. ---- one, NOTIFYICONDATA structure The NOTIFYICONDATA structure contains information about how the system handles tray icons, which include selected icons, callback messages, prompt messages, icons, corresponding windows, and so on. It is defined as: Typedef, struct, _NOTIFYICONDATA { DWORD cbSize; / / this structure in bytes in size HWND hWnd; / / the window handle receiving tray icon notification message UINT uID; / / ID, the icon of the application definition UINT uFlags; The icon / attribute set UINT uCallbackMessage; / / No. ID application definition of the message, the message to the hWnd HICON hIcon; Handle / Icon Char szTip[64]; The information displayed in the prompt / / mouse on the icon } NOTIFYICONDATA, *PNOTIFYICONDATA; In this structure, the member uFlags can make one of the following or a combination: The NIF_ICON settings member hIcon is valid The NIF_MESSAGE settings member uCallbackMessage is valid The NIF_TIP settings member szTip is valid ---- two, Shell_NotifyIcon function The global function Shell_NotifyIcon () is used to add, delete, or modify icons on a tray. Its prototype is: WINSHELLAPI BOOL WINAPI Shell_NotifyIcon (DWORD dwMessage), PNOTIFYICONDATA pnid); Pnid is the pointer to the above NOTIFYIC