Option
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Explicit
Private
Declare
Function
SetWindowPos
Lib
"user32"
(ByVal
hwnd
As
Long,
ByVal
hWndInsertAfter
As
Long,
ByVal
x
As
Long,
ByVal
y
As
Long,
ByVal
cx
As
Long,
ByVal
cy
As
Long,
ByVal
wFlags
As
Long)
As
Long
Private
Const
HWND_TOPMOST
=
-1
'
將窗口置于列表頂部,并位于任何最頂部窗口的前面
Private
Const
SWP_NOSIZE
=
H1
'
保持窗口大小
Private
Const
SWP_NOMOVE
=
H2
'
保持窗口位置
Private
Sub
Form_Load()
SetWindowPos
Me.hwnd,
HWND_TOPMOST,
0,
0,
0,
0,
SWP_NOMOVE
Or
SWP_NOSIZE
'
將窗口設(shè)為總在最前
End
Sub
'其實和樓上的一樣,
不過這個置頂?shù)氖?/p>
加載的窗口,
你要置頂哪窗口就把代碼放哪個里邊
,另外MSGBOX
的置頂是4096
系統(tǒng)強(qiáng)制返回;全部應(yīng)用程序都被掛起,直到用戶對消息框作出響應(yīng)才繼續(xù)工作。
你說的是保持在最前面吧!你再說明白點!
Private Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, _
ByVal hWndInsertAfter As Long, ByVal x As Long, ByVal y As Long, _
ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long)
Private Sub Form_Load()
Call SetWindowPos(Me.hwnd, -1, 0, 0, 0, 0, 3)
'其它代碼
End Sub
將下面的代碼復(fù)制到記事本中,并將其保持為Form1.frm
VERSION 5.00
Begin VB.Form Form1
BorderStyle = 0 'None
ClientHeight = 4695
ClientLeft = 0
ClientTop = 0
ClientWidth = 6975
LinkTopic = "Form1"
ScaleHeight = 4695
ScaleWidth = 6975
ShowInTaskbar = 0 'False
StartUpPosition = 3 '窗口缺省
Begin VB.Shape Shape3
BackColor = H000080FF
BackStyle = 1 'Opaque
BorderStyle = 0 'Transparent
Height = 855
Left = 3480
Shape = 3 'Circle
Top = 960
Width = 975
End
Begin VB.Shape Shape2
BackColor = H000080FF
BackStyle = 1 'Opaque
BorderStyle = 0 'Transparent
Height = 855
Left = 1560
Shape = 3 'Circle
Top = 960
Width = 975
End
Begin VB.Shape Shape1
BackColor = H000080FF
BackStyle = 1 'Opaque
BorderStyle = 0 'Transparent
Height = 1095
Left = 1920
Shape = 2 'Oval
Top = 1320
Width = 2055
End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, _
ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, _
ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long)
Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare Function SetLayeredWindowAttributes Lib "user32" (ByVal hwnd As Long, ByVal crKey As Long, ByVal bAlpha As Byte, ByVal dwFlags As Long) As Long
Dim mouse_x As Single
Dim mouse_y As Single
Private Sub Form_Load()
Call SetWindowPos(Me.hwnd, -1, 0, 0, 0, 0, 3)
Me.BackColor = HFF0000
Dim rtn As Long
BorderStyler = 0
rtn = GetWindowLong(hwnd, -20)
rtn = rtn Or H80000
SetWindowLong hwnd, -20, rtn
SetLayeredWindowAttributes hwnd, HFF0000, 0, H1
End Sub
Private Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
mouse_x = 0
mouse_y = 0
If Button = 1 Then
mouse_x = X
mouse_y = Y
End If
End Sub
Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
If Button = 1 Then
Form1.Left = Form1.Left + (X - mouse_x)
Form1.Top = Form1.Top + (Y - mouse_y)
End If
End Sub
新建立類模塊:
Option Explicit
Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long)
窗口代碼:
Dim rtn
'讓窗口在頂層
rtn = SetWindowPos(Me.hwnd, -1, 0, 0, 0, 0, 3)
'取消窗口在頂層
'rtn = SetWindowPos(F_V.hwnd, -2, 0, 0, 0, 0, 3)
這個簡單啊,引用API函數(shù)SetWindowPos就可以解決。下面看看我的代碼:
Private Declare Function SetWindowPos Lib "user32.dll" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal x As Long, ByVal y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long
Const SWP_NOMOVE = H2
Const SWP_NOSIZE = H1
Const FLAG = SWP_NOMOVE Or SWP_NOSIZE
Const HWND_TOPMOST = -1
Const HWND_NOTOPMOST = -2
Const HWND_TOP = 0
Const HWND_BOTTOM = 1
將窗口設(shè)置最前:Call SetWindowPos(Me.hwnd, HWND_TOPMOST, 0, 0, 0, 0, FLAG)
取消窗口的最前:Call SetWindowPos(Me.hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, FLAG)
函數(shù)的第一個參數(shù)是根據(jù)實際情況改變的,它要求你給它傳送一個窗口的句柄,這里的 Me.hwnd 就給函數(shù)傳送了當(dāng)前窗口的句柄,也就是將當(dāng)前窗口前置或取消前置。如果要前置其他窗口,那么請向函數(shù)傳送其他窗口的句柄,這個可以根據(jù):FindWindow API函數(shù)獲取。希望采納意見,謝謝。。。
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