How can I tell when a user minimizes the form?

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(C#) How to detect when a windows form is being minimized

First of all my code:

private void Form1_Load(object sender, EventArgs e)
        {
            this.MinimumSizeChanged += new EventHandler(Form1_MinimumSizeChanged);
        }

        void Form1_MinimumSizeChanged(object sender, EventArgs e)
        {
            MessageBox.Show("1");
        }

so, my program idea is, when the program get minized i will do a system tray, but this event never happnd. how can i know when the user do a minize screen(minize the program).

i have tryed everything. any ideas?

This question can help you http://stackoverflow.com/questions/1052913/c-how-to-detect-when-a-windows-form-is-being-minimized — Roberto Conte Rosito, Aug 05 '11 at 16:25

score 1 · Accepted Answer · answered Aug 05 '11 at 16:25

1

MinimumSizeChanged has nothing to do with the form getting minimized. MinimumSizeChanged has to deal with when the MinimumSize properties of the form are changed.

You want to check the Resize event of the form.

answered Aug 05 '11 at 16:25

LarsTech

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score 0 · Answer 2 · answered Aug 05 '11 at 16:24

In order to minimize to the system tray, add a NotifyIcon control to your form. Now, override the OnResize method and check if your WindowState property is set to FormWindowState.Minimized. If it is, Hide() your forms and show your notify icon. Make sure to set the Icon property of the NotifyIcon as well. Now just reverse the process for the case when the form is restored.

How can I tell when a user minimizes the form?

2 Answers2