C# Signature:

[DllImport("user32.dll")]
static extern bool AllowSetForegroundWindow(int dwProcessId);

VB.Net Signature:

<DllImport("user32.dll")> _
Shared Function AllowSetForegroundWindow(ByVal dwProcessId As Integer) As Boolean
End Function

User-Defined Types:

None.

Notes:

None.

Tips & Tricks:

ASFW_ANY = -1 // by MSDN

Sample Code:

AllowSetForegroundWindow(System.Diagnostics.Process.GetCurrentProcess().Id)

Alternative Managed API:

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Remarks

The system restricts which processes can set the foreground window. A process can set the foreground window only if one of the following conditions is true:

- The process is the foreground process.

- The process was started by the foreground process.

- The process received the last input event.

- There is no foreground process.

- The foreground process is being debugged.

- The foreground is not locked (see LockSetForegroundWindow).

- The foreground lock time-out has expired (see SPI_GETFOREGROUNDLOCKTIMEOUT in SystemParametersInfo).

- No menus are active.

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