请教高手关于RegisterHotKey注册热键的问题?

2020-07-16 科技 113阅读
可以的
模块里
Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
Private 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
Private Declare Function RegisterHotKey Lib "user32" (ByVal hwnd As Long, ByVal id As Long, ByVal fskey_Modifiers As Long, ByVal vk As Long) As Long
Private Declare Function UnregisterHotKey Lib "user32" (ByVal hwnd As Long, ByVal id As Long) As Long
Public Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal Scan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)
Const WM_HOTKEY = &H312
Const MOD_ALT = &H1
Const MOD_CONTROL = &H2
Const MOD_SHIFT = &H4
Const GWL_WNDPROC = (-4) '窗口函数的地址
Dim key_preWinProc As Long '用来保存窗口信息
Dim key_Modifiers As Long, key_uVirtKey As Long, key_idHotKey As Long
Dim key_IsWinAddress As Boolean '是否取得窗口信息的判断
Function keyWndproc(ByVal hwnd As Long, ByVal Msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
If Msg = WM_HOTKEY Then
Select Case wParam 'wParam 值就是 key_idHotKey
Case 1 '激活 3 个热键后,3 个热键所对应的操作,大家在其他的程序中,只要修改此处就可以了
Case 2
Case 3
Case 4
Case 5
End Select
End If
' 将消息传送给指定的窗口
keyWndproc = CallWindowProc(key_preWinProc, hwnd, Msg, wParam, lParam)
End Function
Function SetHotkey(ByVal KeyId As Long, ByVal KeyAss0 As String, ByVal Action As String)
Dim KeyAss1 As Long
Dim KeyAss2 As String
Dim i As Long
i = InStr(1, KeyAss0, ",")
If i = 0 Then
KeyAss1 = Val(KeyAss0)
KeyAss2 = ""
Else
KeyAss1 = Right(KeyAss0, Len(KeyAss0) - i)
KeyAss2 = Left(KeyAss0, i - 1)
End If
key_idHotKey = 0
key_Modifiers = 0
key_uVirtKey = 0
If key_IsWinAddress = False Then '判断是否需要取得窗口信息,如果重复取得,再最后恢复窗口时,将会造成程序死掉
' 记录原来的window程序地址
key_preWinProc = GetWindowLong(Form1.hwnd, GWL_WNDPROC)
' 用自定义程序代替原来的window程序
SetWindowLong Form1.hwnd, GWL_WNDPROC, AddressOf keyWndproc
End If
key_idHotKey = KeyId
Select Case Action
Case "Add"
If KeyAss2 = "Ctrl" Then key_Modifiers = MOD_CONTROL
If KeyAss2 = "Alt" Then key_Modifiers = MOD_ALT
If KeyAss2 = "Shift" Then key_Modifiers = MOD_SHIFT
If KeyAss2 = "Ctrl+Alt" Then key_Modifiers = MOD_CONTROL + MOD_ALT
If KeyAss2 = "Ctrl+Shift" Then key_Modifiers = MOD_CONTROL + MOD_SHIFT
If KeyAss2 = "Ctrl+Alt+Shift" Then key_Modifiers = MOD_CONTROL + MOD_ALT + MOD_SHIFT
If KeyAss2 = "Shift+Alt" Then key_Modifiers = MOD_SHIFT + MOD_ALT
key_uVirtKey = Val(KeyAss1)
RegisterHotKey Form1.hwnd, key_idHotKey, key_Modifiers, key_uVirtKey '向窗口注册系统热键
key_IsWinAddress = True '不需要再取得窗口信息
Case "Del"
SetWindowLong Form1.hwnd, GWL_WNDPROC, key_preWinProc '恢复窗口信息
UnregisterHotKey Form1.hwnd, key_uVirtKey '取消系统热键
key_IsWinAddress = False '可以再次取得窗口信息
End Select
End Function
工程中
Private Sub Form_Load()
SetHotkey 1, "87", "Add"
SetHotkey 2, Ctrl + "87", "Add"
SetHotkey 3, Ctrl + Alt + "87", "Add"
End Sub
Private Sub Form_Unload(Cancel As Integer)
SetHotkey 1, "", "Del"
End Sub
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