c# - Hide task bar in maximized state when WindowStyle is SingleBorderWindow -

i'm putting option in settings window user choose whether show windows task bar or go fullscreen when maximize window.

i tried this

static readonly intptr hwnd_topmost = new intptr(-1);     const uint swp_nosize = 0x0001;     const uint swp_nomove = 0x0002;     const uint swp_showwindow = 0x0040;      public static void setformtopmost()     {         intptr windowhandle = new windowinterophelper(application.current.mainwindow).handle;         setwindowpos(windowhandle, hwnd_topmost, 0, 0, 0, 0,                      swp_nomove | swp_nosize | swp_showwindow);     } 

but not working. not making topmost..

you can try method:

    public void maximizewindow(bool isfullscreenwithtaskbar)     {         if (isfullscreenwithtaskbar)         {             this.maxheight = systemparameters.maximizedprimaryscreenheight;                      }         this.windowstyle = windowstyle.singleborderwindow;         this.resizemode = resizemode.noresize;         this.windowstate = windowstate.maximized;     }