Removing Icon from a WPF window

Question

I am able to remove the window icon from WPF window using WinApi's, however I get the icon again in the application window when I run just the executable of the WPF project.

How do I remove the icon?

Answer 1

From WPFTutorial:

How to remove the icon of a WPF window

Unfortunately WPF does not provide any function to remove the icon of a window. One solution could be setting the icon to a transparent icon. But this way the extra space between the window border and title remains.

The better approach is to use a function provided by the Win32 API to remove the icon.

public partial class Window1 : Window {     public Window1()     {         InitializeComponent();     }      protected override void OnSourceInitialized(EventArgs e)     {         IconHelper.RemoveIcon(this);     } } 

A helper class used to remove the icon.

public static class IconHelper {     [DllImport("user32.dll")]     static extern int GetWindowLong(IntPtr hwnd, int index);      [DllImport("user32.dll")]     static extern int SetWindowLong(IntPtr hwnd, int index, int newStyle);      [DllImport("user32.dll")]     static extern bool SetWindowPos(IntPtr hwnd, IntPtr hwndInsertAfter,          int x, int y, int width, int height, uint flags);      [DllImport("user32.dll")]     static extern IntPtr SendMessage(IntPtr hwnd, uint msg,          IntPtr wParam, IntPtr lParam);      const int GWL_EXSTYLE = -20;     const int WS_EX_DLGMODALFRAME = 0x0001;     const int SWP_NOSIZE = 0x0001;     const int SWP_NOMOVE = 0x0002;     const int SWP_NOZORDER = 0x0004;     const int SWP_FRAMECHANGED = 0x0020;     const uint WM_SETICON = 0x0080;      public static void RemoveIcon(Window window)     {         // Get this window's handle         IntPtr hwnd = new WindowInteropHelper(window).Handle;          // Change the extended window style to not show a window icon         int extendedStyle = GetWindowLong(hwnd, GWL_EXSTYLE);         SetWindowLong(hwnd, GWL_EXSTYLE, extendedStyle | WS_EX_DLGMODALFRAME);          // Update the window's non-client area to reflect the changes         SetWindowPos(hwnd, IntPtr.Zero, 0, 0, 0, 0, SWP_NOMOVE |                SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);     } } 

Answer 2

Just add this WindowStyle="ToolWindow" to your window properties.