Question

Possible Duplicate:
How to make the Close button disabled in a windows Form using C# coding

I want to disable Close button in a form can any one help me in this.

Answer 1

The following should help:

[DllImport("user32.dll")]
private static extern int GetSystemMenu(int hwnd, int revert);

[DllImport("user32.dll")]
private static extern int GetMenuItemCount(int menu);

[DllImport("user32.dll")]
private static extern int RemoveMenu(int menu, int position, int flags);

private void DisableCloseButton()
{
   int menu = GetSystemMenu(Handle.ToInt32(), 0);
   int count = GetMenuItemCount(menu);
   RemoveMenu(menu, count - 1, MF_DISABLED | MF_BYPOSITION);
}