我用pb做了一个能最小化到托盘的程序，但是当鼠标移动到图标上时，图标就消失，为什么呢？
附程序：（也是在csdn上淘的）
新建一个窗口w_main
首先定义Global External Functions
Public Function Integer Shell_NotifyIcon (Long dwMessage, Any lpData) Library "shell32" Alias For "Shell_NotifyIconA"
Public Function Long LoadImage (Long hInst, String lpsz, Long un1, Long n1, Long n2, Long un2) Library "user32" Alias For "LoadImageA"
Public Function Long DestroyIcon (Long hIcon) Library "user32" Alias For "DestroyIcon"
Public Function Long SetForegroundWindow (Long hwnd) Library "user32" Alias For "SetForegroundWindow"
Public Function Long OpenIcon (Long hwnd) Library "user32" Alias For "OpenIcon"
Public Function Long ShowWindow (Long hWnd, Long nCmdShow ) Library "user32" Alias For "ShowWindow"
然后定义Instance Variables
Constant Long NIM_ADD = 0
Constant Long NIM_MODIFY = 1
Constant Long NIM_DELETE = 2
Constant Long NIF_MESSAGEorNIF_ICONorNIF_TIP = 7
Constant Long WM_MOUSEMOVE = 512
Constant Long IMAGE_ICON = 1
Constant Long LR_LOADFROMFILE = 16
Long hIcon
Boolean CanClose
然后定义1个window structure
名称：notifyicondata
内容：
long cbsize
long hwnd
long uid
long uflags
long ucallbackmessage
long hicon
Any szTip
然后定义3个window function
1、函数名：setnotifyicondata
返回值：notifyicondata
参数为
integer hwnd
integer id
long flags
long callbackmessage
long icon
string tip
函数体：
// NotifyIconData SetNotifyIconData (Long hWnd, Long ID, Long Flags, Long CallbackMessage, Long Icon, String Tip)
Char MyTip [64]
NotifyIconData NidTemp
NidTemp.cbSize = 88 // Len (NidTemp)
NidTemp.hWnd = hWnd
NidTemp.uID = ID
NidTemp.uFlags = Flags
NidTemp.uCallbackMessage = CallbackMessage
NidTemp.hIcon = Icon