Question

vb 托盘图标单击显示窗口用的什么事件啊

Answer 1

是Form的MouseMove事件，对于托盘图标的按了什么键，则通过x来判断。
x/Screen.TwipsPerPixelX的结果即为按键消息，如下：
Public Const WM_MOUSEMOVE = &H200
Public Const WM_LBUTTONDOWN = &H201
Public Const WM_LBUTTONUP = &H202
Public Const WM_LBUTTONDBLCLK = &H203
Public Const WM_RBUTTONDOWN = &H204
Public Const WM_RBUTTONUP = &H205
Public Const WM_RBUTTONDBLCLK = &H206

直接在MouseMove事件中判断按了哪个键被点击，决定是否需要执行: Me.show显示窗口，或弹出菜单。