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改自老外的一个模块,添加了热键管理功能,并封装为一个类.
部分代码如下:-
- '*************************************************************************
- '**模 块 名:cHotKey
- '**说 明:定义全局热键
- '**创 建 人:马大哈 http://www.m5home.com/
- '**日 期:2006年7月19日
- '**版 本:V1.0
- '*************************************************************************
- Option Explicit
- 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 Boolean
- '添加热键
- '如果返回值非零,则成功
- Dim I As Long
- Dim J As Long
- Dim K As Long
-
- AddHotKey = False
- 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
-
- ReDim Preserve HotKeys(UBound(HotKeys) + 1)
- ReDim Preserve KeyAtom(UBound(KeyAtom) + 1)
- ReDim Preserve hCtrls(UBound(hCtrls) + 1)
- ReDim Preserve hAlts(UBound(hAlts) + 1)
- ReDim Preserve hShifts(UBound(hShifts) + 1)
-
- HotKeys(UBound(HotKeys)) = HotKey
- KeyAtom(UBound(KeyAtom)) = GlobalAddAtom(GetTmpStr(16))
- hCtrls(UBound(hCtrls)) = hCtrl
- hAlts(UBound(hAlts)) = hAlt
- hShifts(UBound(hShifts)) = 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)
- AddHotKey = I
-
- 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)
- MsgBox "注册热键失败!", vbOKOnly Or vbExclamation
- 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
- Dim I As Long, 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
-
- UnregisterHotKey mfrmHwnd, KeyAtom(DelIndex) '先删除热键
- GlobalDeleteAtom KeyAtom(DelIndex) '再删除原子
-
- 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
- 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
复制代码 示例工程在此下载:
http://www.m5home.com/blog2/blogview.asp?logID=202
修正版代码及工程在此下载:
http://www.m5home.com/blog/article.asp?id=183
(***********已经修正,可以下载.....*******) |
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