我以往用VB6做的应用程序,当程序最小化时,程序图标会出现在屏幕下的系统托盘上。但近期修改后,最小化时就不会出现在托盘上,而是以最小化窗口出现在托盘左上方的屏幕中,(程序启动后不会出现在系统托盘上)。我并未修改过窗体的参数,不知何故会这样?
(因为使用者习惯使用某种输入法,而该输入法的显示栏正好在托盘上方,刚好挡住了最小化后的窗口,使用很不方便)
(因为使用者习惯使用某种输入法,而该输入法的显示栏正好在托盘上方,刚好挡住了最小化后的窗口,使用很不方便)
Type NOTIFYICONDATA '定义结构NOTIFYICONDATA
cbSize As Long
hwnd As Long
uId As Long
uFlags As Long
uCallbackMessage As Long
hIcon As Long
szTip As String * 64
End Type
'以下为 Shell_NotifyIcon将用到的常量
Public Const NIF_ICON = &H2
Public Const NIF_MESSAGE = &H1
Public Const NIF_TIP = &H4
Public Const NIM_ADD = &H0
Public Const NIM_DELETE = &H2
Public Const NIM_MODIFY = &H1
'Shell_NotifyIcon的函数声明
Declare Function Shell_NotifyIcon Lib "shell32.dll" Alias "Shell_NotifyIconA" (ByVal dwMessage As Long, lpData As NOTIFYICONDATA) As Long
'处理消息将用到的结构、常量、API声明
Type POINTAPI
x As Long
y As Long
End Type
Type Msg
hwnd As Long
message As Long
wParam As Long
lParam As Long
time As Long
pt As POINTAPI
End Type
Public Const WM_USER = &H400
Public Const WM_RBUTTONDOWN = &H204
Public Const WM_LBUTTONDBLCLK = &H203
Public Const GWL_WNDPROC = -4
Public trayflag As Boolean '定义托盘图标是否在桌面上
Global lpPrevWndProc As Long
Global gHW As Long
Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hwnd As Long, ByVal Msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long