Question

vb编程 如何让一个WINDOWS窗口置顶

如何让一个WINDOWS程序始终保持在最前面呢？ 用VB写的话怎么写代码呢 ？
我说的是让一个其他人员开发的一个软件 不是自己写的窗口 就像是我想让 我打开的 C： 这个窗口一直置顶 。 如何实现？？

Answer 1

Option Explicit

Private Const HWND_TOPMOST = -1
Private Const HWND_BOTTOM = 1
Private Const HWND_NOTOPMOST = -2
Private Const SWP_NOSIZE = &H1
Private Const SWP_NOMOVE = &H2
Private Const SWP_NOZORDER = &H4
Private Const SWP_NOACTIVATE = &H10
Private Const SWP_SHOWWINDOW = &H40
Private Const SWP_HIDEWINDOW = &H80

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 Sub Command1_Click()
SetWindowPos Me.hWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE Or SWP_SHOWWINDOW Or SWP_NOSIZE Or SWP_NOMOVE'置顶

End Sub

Private Sub Command2_Click()
SetWindowPos Me.hWnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE Or SWP_SHOWWINDOW Or SWP_NOSIZE Or SWP_NOMOVE'不置顶

End Sub

这个只要获取他的窗口句柄就可以了

whWnd 是 窗口句柄

SetWindowPos whWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE Or SWP_SHOWWINDOW Or SWP_NOSIZE Or SWP_NOMOVE'置顶

Answer 2

Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
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

用这两个API来实现