How can I Hide/Show Taskbar?

Question

4.00/5 (2 votes)

See more:

Hi everyone,

C#

private static void SetVisibility(bool show)
        {
            // get taskbar window
            IntPtr taskBarWnd = FindWindow("Shell_TrayWnd", null);

            // try it the WinXP way first...
            IntPtr startWnd = FindWindowEx(taskBarWnd, IntPtr.Zero, "Button", "Start");
            if (startWnd == IntPtr.Zero)
            {
                // ok, let's try the Vista easy way...
                startWnd = FindWindow("Button", null);

                if (startWnd == IntPtr.Zero)
                {
                    // no chance, we need to to it the hard way...
                    startWnd = GetVistaStartMenuWnd(taskBarWnd);
                }
            }

            ShowWindow(taskBarWnd, show ? SW_SHOW : SW_HIDE);
            ShowWindow(startWnd, show ? SW_SHOW : SW_HIDE);
        }

With that function, I can hide Taskbar, but it isn't showing again.
For Hide Taskbar I'm using Form DeActive Event, and for Show Taskbar I'm using Form_Closing Event. But it is not work..

What is the problem? How can I solve?

Thanks for answers, have a good day...

Posted 29-Aug-15 1:01am

Umut Comlekcioglu

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

chainerlt · Answer 1 · 2015-08-30T00:00:00

Long time I used .net Forms, but as I remember there was an built in option to show/hide windown in taskbar somethink like: this.ShowInTaskbar = false;

As you already got into WinAPI for doing that. I strongly suggest to double think and research if it's needed. If you still think winapi is the best approach, read this: https://msdn.microsoft.com/en-us/library/windows/desktop/ff700543(v=vs.85).aspx[^] you somethink like this should do the trick:

C#

SetWindowLong(handle, GWL_EXSTYLE, GetWindowLong(handle, GWL_EXSTYLE) | WS_EX_APPWINDOW);

SetWindowLong(handle, GWL_EXSTYLE, GetWindowLong(handle, GWL_EXSTYLE) & ~WS_EX_APPWINDOW);

The idea is to get the current window style and add or remove flags you want (also read about bitwise operations and how adding/removing flags works).