.NET/WinForms: maximize a window on a specific screen

Question

i have a dual monitor setup and i want my c# application to maximize its window on a specific Screen.

how can i do that?

thanks!

This solution woked for me: http://stackoverflow.com/questions/17103989 — arnej, Jun 14 '13 at 09:04

serhio · Answer 1 · 2009-12-10T10:13:42.957

This is a screen management code for a similar scope in one of my projects:

        // screenId in my case is 1(first) or 2(second)
        int screenId = RegistryManager.ScreenId;
        // DualScreen management            
        if (screenId > 0)
        {
            // Have 2 screens
            if (System.Windows.Forms.Screen.AllScreens.Length == 2)
            {
                if (screenId == 1) // first
                    this.Location = new System.Drawing.Point(System.Windows.Forms.Screen.AllScreens[0].Bounds.Left, 0);
                else // second
                    this.Location = new System.Drawing.Point(System.Windows.Forms.Screen.AllScreens[1].Bounds.Left, 0);
            }
        }

score 2 · Answer 2 · answered Dec 09 '09 at 15:54

2

You use the Screen class to find the 2nd monitor link

Code found here

function void showOnMonitor2()
{
Screen[] sc;
sc = Screen.AllScreens;
//get all the screen width and heights
Form2 f = new Form2();
f.FormBorderStyle = FormBorderStyle.None;
f.Left = sc[1].Bounds.Width;
f.Top = sc[1].Bounds.Height;
f.StartPosition = FormStartPosition.Manual;
f.Location = sc[1].Bounds.Location;
Point p = new Point(sc[1].Bounds.Location.X, sc[1].Bounds.Location.Y);
f.Location = p;
f.WindowState = FormWindowState.Maximized;
f.Show();
}

answered Dec 09 '09 at 15:54

RvdK

19,580
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You'll need some error checking to make sure there is more than 1 screen. – Matt Dec 09 '09 at 16:07
Yes i know, this is only a copy paste to show how it works. Any sanity checks should always be applied and checked when using someone else code – RvdK Dec 09 '09 at 16:37

score 1 · Accepted Answer · answered Dec 09 '09 at 15:51

1

You might get this to work by moving the window all the way right or left before maximizing. This should cause the window to maximize to that screen when it does maximize.

answered Dec 09 '09 at 15:51

Dave Swersky

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9
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this works if you also set the window to visible after moving it. thanks! – clamp Dec 09 '09 at 16:47

score 0 · Answer 4 · answered May 23 '12 at 21:11

  Public Shared Sub MoveForm(Item As Form, ScreenNumber As Integer, Optional X As Integer = 0, Optional Y As Integer = 0)
    With Screen.AllScreens(ScreenNumber).Bounds
      X -= .Left 'translate overall coordinates to screen coordinates
      Y -= .Top
    End With
    Item.Location = New System.Drawing.Point(X, Y)
  End Sub

.NET/WinForms: maximize a window on a specific screen

4 Answers4