做好的程序窗体上的checkbox怎么用键盘操作?就是怎么用键盘使得勾上或取消勾?非得用鼠标才行吗

做好的程序窗体上的checkbox如何用键盘操作?就是如何用键盘使得勾上或取消勾?非得用鼠标才行吗?
topic:做好的程序窗体上的checkbox如何用键盘操作?就是如何用键盘使得勾上或取消勾?非得用鼠标才行吗?

包括比如像网页上的那种checkbox也是,难道非得用鼠标点才行吗?键盘操作不了么?

------解决方案--------------------
空格，回车？
------解决方案--------------------
当然可以，用API HOOK实现。下面程序点小键盘“+”号选中，“-”号取消：

标准模块：

VB code

Option Explicit
Private Declare Sub CopyMemory Lib "kernel32.dll" Alias "RtlMoveMemory" (ByRef Destination As Any, ByRef Source As Any, ByVal Length As Long)
Private Declare Function SetWindowsHookEx Lib "user32" Alias "SetWindowsHookExA" (ByVal idHook As Long, ByVal lpfn As Long, ByVal hmod As Long, ByVal dwThreadId As Long) As Long
Private Declare Function UnhookWindowsHookEx Lib "user32" (ByVal hHook As Long) As Long
Private Declare Function GetKeyboardState Lib "user32 " (pbKeyState As Byte) As Long
Private Declare Function GetKeyState Lib "user32" (ByVal nVirkey As Long) As Long
Private Declare Function GetKeyNameText Lib "user32" Alias "GetKeyNameTextA" (ByVal lParam As Long, ByVal lpBuffer As String, ByVal nSize As Long) As Long
'Private Declare Sub CopyMemory1 Lib "kernel32" Alias "RtlMoveMemory" (lpvdest As Any, ByVal lpsource As Long, ByVal cbcopy As Long)
Private JPhHook As Long
Private Declare Function GetActiveWindow Lib "user32" () As Long
Private Type KEYMSGS
    vKey As Long
    sKey As Long
    flag As Long
    time As Long
End Type
Private keyMsg As KEYMSGS
'消息
Private Const WH_KEYBOARD_LL As Long = 13
Private Const HC_ACTION = 0
Private Const HC_SYSMODALOFF = 5
Private Const HC_SYSMODALON = 4
'键盘消息
Private Const WM_KEYDOWN = &H100
Private Const WM_KEYUP = &H101
Private Const WM_SYSKEYDOWN = &H104
Private Const WM_SYSKEYUP = &H105

Public Sub EnableHook()
    If JPhHook = 0 Then
       JPhHook = SetWindowsHookEx(WH_KEYBOARD_LL, AddressOf JPHookProc, App.hInstance, 0)
    End If
End Sub

Public Sub FreeHook()
    If JPhHook <> 0 Then
        Call UnhookWindowsHookEx(JPhHook)
    End If
End Sub

Public Function JPHookProc(ByVal nCode As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
    Dim IKey As Long
    Dim strKeyName As String * 255
    Dim strLen As Long
    If nCode = HC_ACTION Then
        CopyMemory ByVal keyMsg, ByVal lParam, Len(keyMsg)
        Select Case wParam
            Case WM_SYSKEYDOWN, WM_KEYDOWN, WM_SYSKEYUP, WM_KEYUP:
             IKey = keyMsg.sKey And &HFF
             IKey = IKey * 65536
             strLen = 256
             strLen = GetKeyNameText(IKey, strKeyName, strLen)
             Debug.Print "键名:" & Left(strKeyName, InStr(strKeyName, Chr(0)) - 1)
             Debug.Print "虚拟:" & keyMsg.vKey
             Debug.Print "扫描码:" & IKey / 65536
             
             If IKey / 65536 = 74 Then
                Form1.Check1.Value = 0
             End If
              If IKey / 65536 = 78 Then
                Form1.Check1.Value = 1
             End If
             
        End Select
        
    End If
End Function

------解决方案--------------------
tab键将焦点移至该checkbox然后按空格键可以选上或者去掉勾选。

做好的程序窗体上的checkbox怎么用键盘操作?就是怎么用键盘使得勾上或取消勾?非得用鼠标才行吗

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