Removing MDI Form Title bar

Dears,

After using CJ Docking and Command Bars components, I couldn't remove the title bar for the Main MDI Form, we were removing it using some code like:

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x = GetWindowLong(Me.hwnd, GWL_STYLE)

x = x And (Not WS_DLGFRAME)

SetWindowLong Me.hwnd, GWL_STYLE, x

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Do you have any other way to remove this.

Because we have a button on the system for a Full Screen System, that will make the system full screen and above the task bar, and it was removing the title bar and borders too so it remain as it is until pressing the button again.

Do you have any other solution for this.

Thanks.