Question

VB高手请进！求键盘控制的代码！谢谢…到时定有重谢…

VB运行时！按下Ctrl+Atl+Del不能弹出任务管理器！或弹出也触发了命令按钮command的单击事件！
请各位哥、姐教教我把！谢谢！

Answer 1

新建立一个FORM窗体：

Private Sub Form_Load()
Dim ret As Long
preWinProc = GetWindowLong(Me.hwnd, GWL_WNDPROC)
ret = SetWindowLong(Me.hwnd, GWL_WNDPROC, AddressOf Wndproc)
idHotKey = 1
Modifiers = MOD_ALT + MOD_CONTROL '定义 ALT + CTRL ‘如果只注册一个单热键，如只按del键，可以把这行代码注释掉。
uVirtKey = vbKeyDelete
ret = RegisterHotKey(Me.hwnd, idHotKey, Modifiers, uVirtKey) ’注册热键 ALT + CTRL +A
End Sub

Private Sub Form_Unload(Cancel As Integer)
Dim ret As Long
ret = SetWindowLong(Me.hwnd, GWL_WNDPROC, preWinProc)
Call UnregisterHotKey(Me.hwnd, uVirtKey)

End Sub

新建立一个模块：

Option Explicit

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 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, uVirtKey As Long, idHotKey As Long

Private Type taLong
ll As Long
End Type

Private Type t2Int
lWord As Integer
hWord As Integer
End Type

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
msgbox "你按下了热键~~~~~"
End If
End If
End If
Wndproc = CallWindowProc(preWinProc, hwnd, Msg, wParam, lParam)
End Function