How can I bring my application window to the front

Question

How to bring my application window to front  For example whan my app needs attention   This is for my personal program  I need that functionality   This is what I got  But it s NOT working 100  times   public void BringToFrontToEnterCaptha         if  InvokeRequired                Invoke new Action BringToFrontToEnterCaptha              else               this TopMost   true          this Focus            this BringToFront            this textBox1 Focus            this textBox1 Text   string Empty          System Media SystemSounds Beep Play             public void BringToBackAfterEnterCaptha         if  InvokeRequired                Invoke new Action BringToBackAfterEnterCaptha              else               this TopMost   false            And I call them from background worker   BringToFrontToEnterCaptha    while   ready        Thread Sleep 100     BringToBackAfterEnterCaptha    Thread Sleep 300     And after pressing  Accept  button bool ready is set to true   I works great but not always

User · Answer

While I agree with everyone  this is no-nice behavior  here is code   DllImport  quot User32 dll quot    public static extern Int32 SetForegroundWindow int hWnd        SetForegroundWindow Handle ToInt32      Update David is completely right  for completeness I include the list of conditions that must apply for this to work   1 for David     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

User · Answer

I use SwitchToThisWindow to bring the application to the forefront as in this example   static class Program        DllImport  User32 dll   SetLastError   true       static extern void SwitchToThisWindow IntPtr hWnd  bool fAltTab               lt summary gt          The main entry point for the application           lt  summary gt       STAThread      static void Main                 bool createdNew          int iP          Process currentProcess   Process GetCurrentProcess            Mutex m   new Mutex true   XYZ   out createdNew           if   createdNew                           app is already running                Process   proc   Process GetProcessesByName  XYZ                    switch to other process             for  iP   0  iP  lt  proc Length  iP                                  if  proc iP  Id    currentProcess Id                      SwitchToThisWindow proc 0  MainWindowHandle  true                              return                     Application EnableVisualStyles            Application SetCompatibleTextRenderingDefault false           Application Run new form             GC KeepAlive m

User · Answer

Use Control BringToFront   myForm BringToFront

User · Answer

Use Form Activate   or Form Focus   methods

User · Answer

this works   if  WindowState    FormWindowState Minimized      WindowState   FormWindowState Normal  else       TopMost   true      Focus        BringToFront        TopMost   false

User · Answer

Before stumbling onto this post  I came up with this solution - to toggle the TopMost property   this TopMost   true  this TopMost   false    I have this code in my form s constructor  eg   public MyForm                       Brint-to-front hack     this TopMost   true      this TopMost   false

User · Answer

Here is a piece of code that worked for me  this WindowState   FormWindowState Minimized  this Show    this WindowState   FormWindowState Normal    It always brings the desired window to the front of all the others

[c#] How can I bring my application window to the front?

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