Public Const WM_HOTKEY = &H312
Public Const MOD_ALT = &H1
Public Const MOD_CONTROL = &H2
Public Const MOD_SHIFT = &H4
Public Const GWL_WNDPROC = (-4)
Public preWinProc As Long
Public Modifiers As Long
Public uVirtKey As Long
Public idHotKey As Long
Private Type taLong
ll As Long
End Type
Private Type t2Int
lWord As Integer
hWord As Integer
End Type
Declare Function SetWindowLong Lib "user32" Alias _
"SetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long, _
ByVal dwNewLong As Long) As Long
Declare Function GetWindowLong Lib "user32" Alias _
"GetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As _
Long) 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 RegisterHotKey Lib "user32" (ByVal _
hWnd As Long, ByVal id As Long, ByVal fsModifiers _
As Long, ByVal vk As Long) As Long
Declare Function UnregisterHotKey Lib "user32" _
(ByVal hWnd As Long, ByVal id As Long) As Long
Public Function Wndproc(ByVal hWnd As Long, ByVal _
Msg As Long, ByVal wParam As Long, ByVal lParam _
As Long) As Long
If Msg = WM_HOTKEY Then
If wParam = idHotKey Then
Dim lp As taLong, i2 As t2Int
lp.ll = lParam
LSet i2 = lp
If (i2.lWord = Modifiers) And i2.hWord = uVirtKey Then
Form1.ShowForm
End If
End If
End If
'如果不是热键信息则调用原来的程序
Wndproc = CallWindowProc(preWinProc, hWnd, Msg, _
wParam, lParam)
End Function
'---在窗体Form1中写入如下代码:
Private Sub Form_Load()
Dim ret As Long
idHotKey = 1
Modifiers = MOD_ALT + MOD_CONTROL 'Alt+Ctrl 键
uVirtKey = vbKeyC 'C键
ret = RegisterHotKey(Me.hWnd, idHotKey, Modifiers, uVirtKey)
End Sub
Private Sub Form_Unload(Cancel As Integer)
Dim ret As Long
'取消Message的截取,使之送往原来的windows程序
ret = SetWindowLong(Me.hWnd, GWL_WNDPROC, preWinProc)
Call UnregisterHotKey(Me.hWnd, uVirtKey)
End Sub