使用 VB.NET 将焦点强制到桌面

Question

How can I, in VB.NET, force the focus to the desktop?

Answer 1

I'm not sure what you mean. Do you want to remove focus from all open windows or minimize all windows (Show desktop)?

You can show desktop using P/Invoke:

Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)
Private Const KEYEVENTF_KEYUP = &H2
Private Const VK_LWIN = &H5B


''' <summary>
''' Shows the desktop by minimizing all windows
''' </summary>
Public Sub ShowDesktop()
    keybd_event(VK_LWIN, 0, 0, 0)
    keybd_event(77, 0, 0, 0)
    keybd_event(VK_LWIN, 0, KEYEVENTF_KEYUP, 0)
End Sub

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