How to maximize application in over the Taskbar at Windows Forms?

Question

I need to maximize my application in C# that it will be over the taskbar. I have change the property WindowState = Maximized. But the lower part of the application appears under the taskbar. I want the status bar to appear above with the taskbar also shown below it.

It's maximized but where is my statusbar :)

This is Normal State of Window; you can see status bar in this pic.

Answer 1

As I indicated in my comment, you've done something odd to your window, which is why you're getting this behaviour. I can reproduce this. I created a new WinForms project, put a button on the form that has this code:

private void button1_Click(object sender, EventArgs e)
{
    this.WindowState = FormWindowState.Maximized;
}

Added a status bar, and set the MaximizeBox property of the form to false . Running the code, pressing my custom button, the form maximizes, but the status bar disappears behind the task bar.

If I then close the form, re-enable the MaximizeBox property, and re-run the project, then maximizing the form gets the behaviour you want (the status bar's bottom is aligned with the top of the task bar). So re-enable your MaximizeBox and you should be done.

(Once the Maximize box is available, maximizing works whether using that or the custom button)

Answer 2

First, make sure that you have no ControlBox, but text in the Form Text - this adds the title bar. Then, set your form WindowState to Maximized .

The last thing you do in the Form_Load event is to set the form Text property to an empty string. The Title bar is removed, the form is maximized, and the Task Bar is visible.

Answer 3

I am guessing that you have TopMost property set to 'True'. If you need this setting then you can get taskbar information from a Win32 API call. There is some information about it here:

Taskbar Height

Otherwise you could just disable the TopMost setting. You may want to check that your program runs in 64bit os (if you are not already using this). I use VirtualBox with a 64 bit guest o/s for testing 64bit on my 32 bit host. (Requires a 64 bit processor though.)

I hope that this helps.