使用VB在应用程序中注册热键

'窗体中

Option Explicit

Private Sub Form_Load()

Dim ret As Long

'记录原来的window程序地址

preWinProc = GetWindowLong(Me.hWnd, GWL_WNDPROC)

'用自定义程序代替原来的window程序

ret = SetWindowLong(Me.hWnd, GWL_WNDPROC, AddressOf wndproc)

idHotKey = 1 'in the range ＆h0000 through ＆hBFFF

Modifiers = MOD_ALT '辅助键为Alt

uVirtKey1 = vbKeyQ '注册的热键为Alt+Q

'注册热键

ret = RegisterHotKey(Me.hWnd, idHotKey, Modifiers, uVirtKey1)

If ret = 0 Then

MsgBox "注册热键失败,请使用其它热键!", vbCritical, "错误"

End If

End Sub

Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)

Dim ret As Long

'取消Message的截取，使之送往原来的window程序

ret = SetWindowLong(Me.hWnd, GWL_WNDPROC, preWinProc)

Call UnregisterHotKey(Me.hWnd, uVirtKey1)

End Sub

'模块中

'以下程序放在模块中

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, uVirtKey1 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

Dim lp As taLong, i2 As t2Int

If Msg = WM_HOTKEY Then

If wParam = idHotKey Then

lp.ll = lParam

LSet i2 = lp

If (i2.lWord = Modifiers) And i2.hword = uVirtKey1 Then

Form1.Visible = Not Form1.Visible

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