CODEWITHSUNDEEP
c#winformsmultiple-monitors
berkay dombaycı
berkay dombaycı

Reputation: 7

How can I show a form on a second screen?

I am creating a C# form application. I wanted to show the initial form on a second screen. I want to open the other form pages on the first screen. There is a resolution difference between two screens. How can I show the initial form on the second screen and the other five forms on the main screen?

Upvotes: 0

Views: 3871

Answers (2)

ShadyOverflow
ShadyOverflow

Reputation: 105

I've used this method, hope it helps you:

public void MaximizeToMonitor(Form frm, int monitorIndex)
    {
        try
        {
            Screen screen = Screen.AllScreens[monitorIndex];
            if(screen != null)
            {
                frm.WindowState = FormWindowState.Normal;
                var workingArea = screen.WorkingArea;
                frm.Left = workingArea.Left + 10;
                frm.Top = workingArea.Top + 10;
                frm.Width = workingArea.Width + 10;
                frm.Height = workingArea.Height + 10;
                frm.WindowState = FormWindowState.Maximized;
            }

        }
        catch (Exception ex)
        {
            MessageBox.Show($"Monitor does not exists. {Environment.NewLine}{ex.Message}");
        }
    }

Upvotes: 0

Christoph Fink
Christoph Fink

Reputation: 23113

In matter of window positioning there are no "two screens" but just one "working area".
Meaning if you have two FullHD screens next to each other you have a working area of 3840x1080 (minus some for taskbar and such).
If you then place a window at Left = 200 and Top = 100 it will be placed 200 pixels to the left side of the left screen and if you place it at Left = 2120 and Top = 100 it will be placed at the same position on the right screen.
And for all that to work you need to use StartPosition = FormStartPosition.Manual.

Upvotes: 4

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