How to make a foreground window using C #?

Question

I'm trying to bring a foreground window. I am using this code. But that does not work. Can anybody help?

ShowWindowAsync(wnd.hWnd, SW_SHOW);

SetForegroundWindow(wnd.hWnd);
// Code from Karl E. Peterson, www.mvps.org/vb/sample.htm
// Converted to Delphi by Ray Lischner
// Published in The Delphi Magazine 55, page 16
// Converted to C# by Kevin Gale
IntPtr foregroundWindow = GetForegroundWindow();
IntPtr Dummy = IntPtr.Zero;

uint foregroundThreadId = GetWindowThreadProcessId(foregroundWindow, Dummy);
uint thisThreadId = GetWindowThreadProcessId(wnd.hWnd, Dummy);

 if (AttachThreadInput(thisThreadId, foregroundThreadId, true))
 {
    BringWindowToTop(wnd.hWnd); // IE 5.5 related hack
    SetForegroundWindow(wnd.hWnd);
    AttachThreadInput(thisThreadId, foregroundThreadId, false);
 }

 if (GetForegroundWindow() != wnd.hWnd)
 {
     // Code by Daniel P. Stasinski
     // Converted to C# by Kevin Gale
    IntPtr Timeout = IntPtr.Zero;
    SystemParametersInfo(SPI_GETFOREGROUNDLOCKTIMEOUT, 0, Timeout, 0);
    SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, Dummy, SPIF_SENDCHANGE);
    BringWindowToTop(wnd.hWnd); // IE 5.5 related hack
    SetForegroundWindow(wnd.hWnd);
    SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, Timeout, SPIF_SENDCHANGE);
 }

Designated code

Creating a foreground window requires more than just calling the SetForegroundWindow API. You must first define the front part and attach it to the window using AttachThreadInput, then call SetForegroundWindow. In this way, they can separate input states.

GetForegroundWindow . GetWindowThreadProcessId , . SetForegroundWindow - . , , . API AttachThreadInput .

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Answer 1

:

    [DllImport("user32.dll")]
    static extern bool SetForegroundWindow(IntPtr hWnd);

    Process[] processes = Process.GetProcessesByName("processname");
    SetForegroundWindow(processes[0].MainWindowHandle);

: http://pinvoke.net/default.aspx/user32.SetForegroundWindow

Answer 2

:

    [DllImport("User32.dll")]
    static extern int SetForegroundWindow(IntPtr hWnd);

    [DllImport("user32.dll")]
    internal static extern bool SendMessage(IntPtr hWnd, Int32 msg, Int32 wParam, Int32 lParam);
    static Int32 WM_SYSCOMMAND = 0x0112;
    static Int32 SC_RESTORE = 0xF120;

:

    var proc = Process.GetProcessesByName("YourProgram").FirstOrDefault();

    if (proc != null)
    {
        var pointer = proc.MainWindowHandle;

        SetForegroundWindow(pointer);
        SendMessage(pointer, WM_SYSCOMMAND, SC_RESTORE, 0);
    }

Answer 3

SetForegroundWindow , . - , , . . , , , . , SetForegroundWindow , . .

• SetForegroundWindow it
• SetForegroundWindow it

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Answer 4

SetForegroundWindow. # Force Form Focus

Answer 5

: Form.BringToFront()

Answer 6

Windows 7 . , , , Excel, Windows 7 . - ForegroundLockTimeout = 0 HKEY_CURRENT_USER\Control Panel\Desktop, . , "" Windows 7 , / 0x00030D40 (200000 ). , Windows. . B, , - A, B.