출처:http://kin.naver.com/detail/detail.php?d1id=1&dir_id=10107&docid=9064594&qb=xbC6uLXlIMjExbc=&enc=euc-kr§ion=kin.qna&rank=4&sort=0&spq=0
a, b, c와 같은 키들은 Form의 속성 중 KeyPreview를 True로 설정한 후..
----------------------
Private Sub Form_KeyPress(KeyAscii As Integer)
If KeyAscii = Asc("a") Or KeyAscii = Asc("b") Then KeyAscii = 0
End Sub
----------------------
와 같이 코딩을 하면 폼내에 a와 b의 문자는 모두 차단됩니다.
shift와 F10, F11을 무력화 시키는 것은 키보드 후킹을 통해 가능합니다.(조금 복잡합니다.)
다음 예제를 참조하세요.
먼저 모듈에다..
----------------------
Option Explicit
Public Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
Public 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
Public Declare Function CallNextHookEx Lib "user32" (ByVal hHook As Long, ByVal nCode As Long, ByVal wParam As Long, lParam As Any) As Long
Public Declare Function UnhookWindowsHookEx Lib "user32" (ByVal hHook As Long) As Long
Public Declare Function GetKeyState Lib "user32" (ByVal nVirtKey As Long) As Integer
Public Const WM_KEYDOWN = &H100
Public Const WM_KEYUP = &H101
Public Const WM_SYSKEYDOWN = &H104
Public Const WM_SYSKEYUP = &H105
Public Const WH_KEYBOARD_LL = 13
Public Const VK_F10 = &H79
Public Const VK_F11 = &H7A
Public Const VK_SHIFT = &H10
Public Type KBDLLHOOKSTRUCT
vkCode As Long
scanCode As Long
flags As Long
time As Long
dwExtraInfo As Long
End Type
Dim p As KBDLLHOOKSTRUCT
Public Function LowLevelKeyboardProc(ByVal nCode As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Dim fEatKeystroke As Boolean
If (nCode = 0) Then
If wParam = WM_KEYDOWN Or wParam = WM_SYSKEYDOWN Or wParam = WM_KEYUP Or wParam = WM_SYSKEYUP Then
CopyMemory p, ByVal lParam, Len(p)
If GetKeyState(VK_SHIFT) And &HF0000000 Then
fEatKeystroke = True
End If
If (p.vkCode = VK_F10) Or (p.vkCode = VK_F11) Then
fEatKeystroke = True
End If
End If
End If
If fEatKeystroke Then
LowLevelKeyboardProc = -1
Else
LowLevelKeyboardProc = CallNextHookEx(0, nCode, wParam, ByVal lParam)
End If
End Function
----------------------
폼에다가는..
----------------------
Option Explicit
Dim hhkLowLevelKybd As Long
Private Sub Form_Load()
hhkLowLevelKybd = SetWindowsHookEx(WH_KEYBOARD_LL, AddressOf LowLevelKeyboardProc, App.hInstance, 0)
End Sub
Private Sub Form_Unload(Cancel As Integer)
If hhkLowLevelKybd <> 0 Then UnhookWindowsHookEx hhkLowLevelKybd
End Sub