'类模块 VERSION 1.0 CLASS BEGIN MultiUse = -1 'True Persistable = 0 'NotPersistable DataBindingBehavior = 0 'vbNone DataSourceBehavior = 0 'vbNone MTSTransactionMode = 0 'NotAnMTSObject END Attribute VB_Name = "HotKey" Attribute VB_GlobalNameSpace = False Attribute VB_Creatable = True Attribute VB_PredeclaredId = False Attribute VB_Exposed = False '************************************************************************* '**模 块 名：cHotKey '**说 明：全局热键类,参考老外代码思路,添加了热键管理代码,使之更方便使用. '**创 建 人：嗷嗷叫的老马 '**日 期：2006年07月19日 '**备 注: 紫水晶工作室 版权所有 '** 更多模块/类模块请访问我站: http://www.m5home.com '**日 期: 2008年09月30日 '**修 改 人: 嗷嗷叫的老马 '**备 注: 修正清除所有热键时的一个逻辑错误. '**版 本：V1.0 '************************************************************************* Option Explicit Public Enum vbKeyAll '枚举值,可根据自己的实际情况调整 vbKeyLButton = 1 '鼠标左键 ' vbKeyRButton = 2 '鼠标右键 ' vbKeyCancel = 3 'CANCEL 键 ' vbKeyMButton = 4 '鼠标中键 ' vbKeyBack = 8 'BACKSPACE 键 vbKeyTab = 9 'TAB 键 ' vbKeyClear = 12 'CLEAR 键 ' vbKeyReturn = 13 ' ENTER 键 ' vbKeyShift = 16 'SHIFT 键 ' vbKeyControl = 17 'CTRL 键 ' vbKeyMenu = 18 ' 菜单键 ' vbKeyPause = 19 'PAUSE 键 ' vbKeyCapital = 20 'CAPS LOCK 键 ' vbKeyEscape = 27 'ESC 键 ' vbKeySpace = 32 'SPACEBAR 键 ' vbKeyPageUp = 33 'PAGEUP 键 ' vbKeyPageDown = 34 'PAGEDOWN 键 ' vbKeyEnd = 35 'END 键 ' vbKeyHome = 36 'HOME 键 ' vbKeyLeft = 37 'LEFT ARROW 键 ' vbKeyUp = 38 'UP ARROW 键 ' vbKeyRight = 39 'RIGHT ARROW 键 ' vbKeyDown = 40 'DOWN ARROW 键 ' vbKeySelect = 41 'SELECT 键 ' vbKeyPrint = 42 'PRINT SCREEN 键 ' vbKeyExecute = 43 'EXECUTE 键 ' vbKeySnapshot = 44 'SNAP SHOT 键 ' vbKeyInser = 45 'INS 键 ' vbKeyDelete = 46 'DEL 键 ' vbKeyHelp = 47 'HELP 键 ' vbKeyNumlock = 144 'NUM LOCK 键 vbKeyA = 65 'A 键 vbKeyB = 66 'B 键 vbKeyC = 67 'C 键 vbKeyD = 68 'D 键 vbKeyE = 69 'E 键 vbKeyF = 70 'F 键 vbKeyG = 71 'G 键 vbKeyH = 72 'H 键 vbKeyI = 73 'I 键 vbKeyJ = 74 'J 键 vbKeyK = 75 'K 键 vbKeyL = 76 'L 键 vbKeyM = 77 'M 键 vbKeyN = 78 'N 键 vbKeyO = 79 'O 键 vbKeyP = 80 'P 键 vbKeyQ = 81 'Q 键 vbKeyR = 82 'R 键 vbKeyS = 83 'S 键 vbKeyT = 84 'T 键 vbKeyU = 85 'U 键 vbKeyV = 86 'V 键 vbKeyW = 87 'W 键 vbKeyX = 88 'X 键 vbKeyY = 89 'Y 键 vbKeyZ = 90 'Z 键 ' vbKey0 = 48 '0 键 ' vbKey1 = 49 '1 键 ' vbKey2 = 50 '2 键 ' vbKey3 = 51 '3 键 ' vbKey4 = 52 '4 键 ' vbKey5 = 53 '5 键 ' vbKey6 = 54 '6 键 ' vbKey7 = 55 '7 键 ' vbKey8 = 56 '8 键 ' vbKey9 = 57 '9 键 ' vbKeyNumpad0 = 96 '0 键 ' vbKeyNumpad1 = 97 '1 键 ' vbKeyNumpad2 = 98 '2 键 ' vbKeyNumpad3 = 99 '3 键 ' vbKeyNumpad4 = 100 '4 键 ' vbKeyNumpad5 = 101 '5 键 ' vbKeyNumpad6 = 102 '6 键 ' vbKeyNumpad7 = 103 '7 键 ' vbKeyNumpad8 = 104 ' 8 键 ' vbKeyNumpad9 = 105 '9 键 ' vbKeyMultiply = 106 '乘号 (*) 键 ' vbKeyAdd = 107 '加号 (+) 键 ' vbKeySeparator = 108 'ENTER 键（在数字小键盘上） ' vbKeySubtract = 109 '减号 (-) 键 ' vbKeyDecimal = 110 '小数点 (.) 键 ' vbKeyDivide = 111 '除号 (/) 键 vbKeyF1 = 112 'F1 键 vbKeyF2 = 113 'F2 键 vbKeyF3 = 114 'F3 键 vbKeyF4 = 115 'F4 键 vbKeyF5 = 116 'F5 键 vbKeyF6 = 117 'F6 键 vbKeyF7 = 118 'F7 键 vbKeyF8 = 119 'F8 键 vbKeyF9 = 120 'F9 键 vbKeyF10 = 121 'F10 键 vbKeyF11 = 122 'F11 键 vbKeyF12 = 123 'F12 键 vbKeyF13 = 124 'F13 键 vbKeyF14 = 125 'F14 键 vbKeyF15 = 126 'F15 键 vbKeyF16 = 127 'F16 键 End Enum Private Const MOD_CONTROL = &H2 Private Const MOD_ALT = &H1 Private Const MOD_SHIFT = &H4 Private Const PM_REMOVE = &H1 Private Const WM_HOTKEY = &H312 Private Type POINTAPI x As Long y As Long End Type Private Type Msg hwnd As Long Message As Long wParam As Long lParam As Long time As Long pt As POINTAPI End Type Private Declare Function RegisterHotKey Lib "user32" (ByVal hwnd As Long, ByVal id As Long, ByVal fsModifiers As Long, ByVal vk As Long) As Long Private Declare Function UnregisterHotKey Lib "user32" (ByVal hwnd As Long, ByVal id As Long) As Long Private Declare Function PeekMessage Lib "user32" Alias "PeekMessageA" (lpMsg As Msg, ByVal hwnd As Long, ByVal wMsgFilterMin As Long, ByVal wMsgFilterMax As Long, ByVal wRemoveMsg As Long) As Long Private Declare Function WaitMessage Lib "user32" () As Long Private Declare Function GlobalAddAtom Lib "kernel32" Alias "GlobalAddAtomA" (ByVal lpString As String) As Integer Private Declare Function GlobalDeleteAtom Lib "kernel32" (ByVal nAtom As Integer) As Integer Public Event HotKeyPress(ByVal HotKeyIndex As Long, ByVal HotKey As Long, ByVal hCtrl As Boolean, ByVal hAlt As Boolean, ByVal hShift As Boolean) Dim HotKeys() As Long '热键值 Dim hCtrls() As Boolean 'Ctrl键状态 Dim hAlts() As Boolean 'Alt键状态 Dim hShifts() As Boolean 'Shift键状态 Dim KeyAtom() As Integer '原子值 Dim WithEvents CtlTimer As Timer '用于启动死循环的定时器 Attribute CtlTimer.VB_VarHelpID = -1 Dim bCancel As Boolean Dim mfrmHwnd As Long '主窗体句柄 Public Sub StartHotKeys(ByRef theTimer As Timer) '启动消息死循环,开始捕捉热键 'theTimer:一个定时器 If UBound(HotKeys) = 0 Then Exit Sub '没有热键定义,则不进入消息循环 bCancel = False Set CtlTimer = theTimer With CtlTimer .Enabled = False .Interval = 10 .Tag = "" .Enabled = True End With End Sub Public Sub StopHotKeys() '停止消息循环,停止捕捉热键 bCancel = True DoEvents End Sub Private Sub GetMessage() '消息循环,是一个死循环,需要由定时器调用,以便调用过程可以立即返回 '在此循环内判断发送到目标句柄的热键消息,并以事件返回 Dim Message As Msg Dim I As Long Do While Not bCancel WaitMessage If PeekMessage(Message, mfrmHwnd, WM_HOTKEY, WM_HOTKEY, PM_REMOVE) Then Debug.Print "HotKeyMessage: " & Message.Message For I = 1 To UBound(KeyAtom) '有热键消息来时,判断一下是哪个热键,并返回其值 If KeyAtom(I) = Message.wParam Then 'wParam里就是原子值 RaiseEvent HotKeyPress(I, HotKeys(I), hCtrls(I), hAlts(I), hShifts(I)) Exit For End If Next I End If DoEvents Loop End Sub Public Function AddHotKey(ByVal HotKey As vbKeyAll, Optional ByVal hCtrl As Boolean = False, Optional ByVal hAlt As Boolean = False, Optional ByVal hShift As Boolean = False) As Long '添加热键 'HotKey: 按键值 'hCtrl: Ctrl键状态 'hAlt: Alt键状态 'hShift: Shift键状态 '返回值: 成功则返回按键组合的索引值;否则返回-1 Dim I As Long Dim J As Long Dim K As Long AddHotKey = -1 I = InHotValue(HotKey) If I <> -1 Then '如果按键已经有了,再判断一下控制键 If hCtrls(I) = hCtrl And hShifts(I) = hShift Then '如果控制键也相同,那就已经定义过了,退出 Exit Function End If End If J = UBound(HotKeys) ReDim Preserve HotKeys(J + 1) ReDim Preserve KeyAtom(J + 1) ReDim Preserve hCtrls(J + 1) ReDim Preserve hAlts(J + 1) ReDim Preserve hShifts(J + 1) J = UBound(HotKeys) HotKeys(J) = HotKey KeyAtom(J) = GlobalAddAtom(GetTmpStr(16)) hCtrls(J) = hCtrl hAlts(J) = hAlt hShifts(J) = hShift J = IIf(hCtrl = True, MOD_CONTROL, 0) '组合控制键 K = J J = IIf(hAlt = True, MOD_ALT, 0) K = IIf(J = 0, K, K Or J) J = IIf(hShift = True, MOD_SHIFT, 0) K = IIf(J = 0, K, K Or J) I = RegisterHotKey(mfrmHwnd, KeyAtom(UBound(KeyAtom)), K, HotKey) Debug.Print "HotKeyRegister: " & I If I = 0 Then '注册失败,就删除这个热键 Call DelHotKey(HotKey, hCtrl, hAlt, hShift) Else AddHotKey = UBound(HotKeys) End If End Function Public Function DelHotKey(ByVal HotKey As Long, Optional ByVal hCtrl As Boolean = False, Optional ByVal hAlt As Boolean = False, Optional ByVal hShift As Boolean = False) As Boolean '删除热键 'HotKey: 按键值 'hCtrl: Ctrl键状态 'hAlt: Alt键状态 'hShift: Shift键状态 '返回值: 成功返回True,否则返回False Dim I As Long, lRet As Long Dim DelIndex As Long Dim tmpHotKeys() As Long '交换用数组 Dim tmpKeyAtom() As Integer '交换用数组 Dim tmphCtrls() As Boolean '交换用数组 Dim tmphAlts() As Boolean '交换用数组 Dim tmphShifts() As Boolean '交换用数组 ' On Error Resume Next DelHotKey = False DelIndex = InHotValue(HotKey, hCtrl, hAlt, hShift) '取得索引 If DelIndex = -1 Then Exit Function '判断热键 If hCtrl <> hCtrls(DelIndex) Then Exit Function If hAlt <> hAlts(DelIndex) Then Exit Function If hShift <> hShifts(DelIndex) Then Exit Function lRet = UnregisterHotKey(mfrmHwnd, KeyAtom(DelIndex)) '先删除热键 lRet = GlobalDeleteAtom(KeyAtom(DelIndex)) '再删除原子 I = 0 ReDim tmpHotKeys(I) '初始化临时数组 ReDim tmpKeyAtom(I) ReDim tmphCtrls(I) ReDim tmphAlts(I) ReDim tmphShifts(I) For I = 1 To UBound(HotKeys) '把内容倒到临时数组内 If I <> DelIndex Then ReDim tmpHotKeys(UBound(tmpHotKeys) + 1) ReDim tmpKeyAtom(UBound(tmpKeyAtom) + 1) ReDim tmphCtrls(UBound(tmphCtrls) + 1) ReDim tmphAlts(UBound(tmphAlts) + 1) ReDim tmphShifts(UBound(tmphShifts) + 1) tmpHotKeys(UBound(tmpHotKeys)) = HotKeys(I) tmpKeyAtom(UBound(tmpKeyAtom)) = KeyAtom(I) tmphCtrls(UBound(tmphCtrls)) = hCtrls(I) tmphAlts(UBound(tmphAlts)) = hAlts(I) tmphShifts(UBound(tmphShifts)) = hShifts(I) End If Next I I = UBound(tmpHotKeys) ReDim HotKeys(I) '重定义数组大小,原内容不保存 ReDim KeyAtom(I) ReDim hCtrls(I) ReDim hAlts(I) ReDim hShifts(I) HotKeys = tmpHotKeys '再把调整后的内容倒回原数组 KeyAtom = tmpKeyAtom hCtrls = tmphCtrls hAlts = tmphAlts hShifts = tmphShifts DelHotKey = True End Function Public Function ClsAllHotKey() As Boolean '删除所有热键. Dim I As Long, lRet As Long bCancel = True DoEvents ' For I = 1 To UBound(HotKeys) '有问题的代码. ' Call DelHotKey(HotKeys(I), hCtrls(I), hAlts(I), hShifts(I)) ' Next I ' 原因:调用DelHotKey时会改变HotKeys()等数组的维数,那么这个循环就会出错.因此会造成删除不了热键,最终引起再次定义相同热键时失败. '修改于2008-09-30 BY 嗷嗷叫的老马 '之前的清除所有热键的代码有逻辑问题. For I = 1 To UBound(HotKeys) lRet = UnregisterHotKey(mfrmHwnd, KeyAtom(I)) '先删除热键 lRet = GlobalDeleteAtom(KeyAtom(I)) '再删除原子 Next Call CleanData End Function Public Function GetHotKeySetting(ByVal HotKeyIndex As Long, ByRef HotKey As Long, ByRef hCtrl As Boolean, ByRef hAlt As Boolean, ByRef hShift As Boolean) As Long '查询热键设定值 'HotKeyIndex: 要查询的组合的索引 'HotKey: 返回按键值 'hCtrl: 返回Ctrl键状态 'hAlt: 返回Alt键状态 'hShift: 返回Shift键状态 '返回值: 成功则返回按键组合的索引值;否则返回-1 GetHotKeySetting = -1 If HotKeyIndex < 0 Then Exit Function If HotKeyIndex > UBound(HotKeys) Then Exit Function HotKey = HotKeys(HotKeyIndex) hCtrl = hCtrls(HotKeyIndex) hAlt = hAlts(HotKeyIndex) hShift = hShifts(HotKeyIndex) GetHotKeySetting = UBound(HotKeys) End Function Private Sub Class_Initialize() '类初始化 Call CleanData bCancel = True End Sub Private Sub Class_Terminate() '类销毁 bCancel = True DoEvents Call ClsAllHotKey Call CleanData End Sub Private Sub CleanData() '清除数据 ReDim HotKeys(0) ReDim KeyAtom(0) ReDim hCtrls(0) ReDim hAlts(0) ReDim hShifts(0) End Sub Private Function InHotValue(ByVal HotValue As Long, Optional ByVal hCtrl As Boolean = False, Optional ByVal hAlt As Boolean = False, Optional ByVal hShift As Boolean = False) As Long '判断热键值是否定义过 '返回值:-1表示没有定义过,否则返回索引值 Dim I As Long InHotValue = -1 For I = 1 To UBound(HotKeys) If HotKeys(I) = HotValue Then '先判断按键 If hCtrl = hCtrls(I) And _ hAlt = hAlts(I) And _ hShift = hShifts(I) Then '再判断功能键 InHotValue = I Exit For End If End If Next I End Function Private Function GetTmpStr(ByVal NumValue As Long) As String '返回指定长度的随机字符串 Dim I As Long Dim tmpStr As Long For I = 1 To NumValue Randomize tmpStr = Int(Rnd(1) * 70) + 60 Select Case tmpStr Case 65 To 90, 97 To 122, 48 To 57 If GetTmpStr = "" Then GetTmpStr = Chr(tmpStr) Else GetTmpStr = GetTmpStr & Chr(tmpStr) End If End Select Next I End Function Private Sub CtlTimer_Timer() '用于启动死循环的事件.在这里启动后,不会占用主界面的过程 CtlTimer.Enabled = False If CtlTimer.Tag = "1" Then Exit Sub CtlTimer.Tag = "1" Call GetMessage End Sub Public Property Get frmHwnd() As Long frmHwnd = mfrmHwnd End Property Public Property Let frmHwnd(ByVal vNewValue As Long) mfrmHwnd = vNewValue End Property Public Property Get HotKeysCount() As Long HotKeysCount = UBound(HotKeys) End Property '窗体中 Private Const SEC_HotKey As String = "HotKey" Dim WithEvents cHK As HotKey Dim lHotKeyIndex() As Long '保存对应的热键索引值,这个值由AddHotKey方法返回,用于判断哪组热键按下 Private Sub Form_Load() '注册热键 Set cHK = New HotKey cHK.frmHwnd = Me.hwnd '设置为窗体句柄 Call cHK.ClsAllHotKey '先清除所有热键定义 cHK.AddHotKey 9 '添加热键 Call cHK.StartHotKeys(Timer1) '设置完毕后,启动热键捕捉过程 End Sub Private Sub cHK_HotKeyPress(ByVal HotKeyIndex As Long, ByVal HotKey As Long, ByVal hCtrl As Boolean, ByVal hAlt As Boolean, ByVal hShift As Boolean) '这里响应热键事件 End Sub Private Sub Form_Unload(Cancel As Integer) Call cHK.ClsAllHotKey '清除所有热键并停止消息捕捉 Set cHK = Nothing End Sub
