//在程序运行的时候如果按一下F6就打开一个窗体,要是我一直按住F6程序就会 弹出多窗体,这是我不想要的结果。我假设你要打开的窗体为form2:'两个窗体,没有模块: '窗体1代码: Option ExplicitPrivate Const MOD_ALT = &H1 Private Const MOD_CONTROL = &H2 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 TypePrivate 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 bCancel As Boolean Private Sub ProcessMessages() Dim Message As Msg Do While Not bCancel WaitMessage If PeekMessage(Message, Me.hWnd, WM_HOTKEY, WM_HOTKEY, PM_REMOVE) Then Dim a For Each a In Forms If a.Name = "Form2" Then Exit Sub End If Next Form2.Show End If DoEvents Loop End SubPrivate Sub Form_Load() Dim ret As Long bCancel = False ret = RegisterHotKey(Me.hWnd, &HBFFF&, 0, vbKeyF6) Show ProcessMessages End Sub Private Sub Form_Unload(Cancel As Integer) bCancel = True 'unregister hotkey Call UnregisterHotKey(Me.hWnd, &HBFFF&) End Sub
Dim frm As Form
For Each frm In Forms
If frm.Name = "Form2" Then
Exit Sub
End If
Next
Form2.Show
End Sub
在按F6的时候判断如果变量是真就不执行了.
弹出多窗体,这是我不想要的结果。我假设你要打开的窗体为form2:'两个窗体,没有模块:
'窗体1代码:
Option ExplicitPrivate Const MOD_ALT = &H1
Private Const MOD_CONTROL = &H2
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 TypePrivate 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 bCancel As Boolean
Private Sub ProcessMessages()
Dim Message As Msg
Do While Not bCancel
WaitMessage
If PeekMessage(Message, Me.hWnd, WM_HOTKEY, WM_HOTKEY, PM_REMOVE) Then
Dim a
For Each a In Forms
If a.Name = "Form2" Then
Exit Sub
End If
Next
Form2.Show
End If
DoEvents
Loop
End SubPrivate Sub Form_Load()
Dim ret As Long
bCancel = False
ret = RegisterHotKey(Me.hWnd, &HBFFF&, 0, vbKeyF6)
Show
ProcessMessages
End Sub
Private Sub Form_Unload(Cancel As Integer)
bCancel = True
'unregister hotkey
Call UnregisterHotKey(Me.hWnd, &HBFFF&)
End Sub