public static void ShowContextHelpButton(this Window window)
{
IntPtr hwnd = new WindowInteropHelper(window).Handle;
IntPtr exStyle = Win32Interop.GetWindowLongPtr(hwnd, Win32Interop.GWL_EXSTYLE);
if (IntPtr.Size == 4)
{
exStyle = new IntPtr(exStyle.ToInt32() | Win32Interop.WS_EX_CONTEXTHELP);
}
else
{
exStyle = new IntPtr(exStyle.ToInt64() | ((long)Win32Interop.WS_EX_CONTEXTHELP));
}
Win32Interop.SetWindowLongPtr(new HandleRef(window, hwnd), Win32Interop.GWL_EXSTYLE, exStyle);
}
public static void HideIcon(this Window window)
{
IntPtr hwnd = new WindowInteropHelper(window).Handle;
IntPtr exStyle = Win32Interop.GetWindowLongPtr(hwnd, Win32Interop.GWL_EXSTYLE);
if (IntPtr.Size == 4)
{
exStyle = new IntPtr(exStyle.ToInt32() | Win32Interop.WS_EX_DLGMODALFRAME);
}
else
{
exStyle = new IntPtr(exStyle.ToInt64() | ((long)Win32Interop.WS_EX_DLGMODALFRAME));
}
Win32Interop.SetWindowLongPtr(new HandleRef(window, hwnd), Win32Interop.GWL_EXSTYLE, exStyle);
Win32Interop.SendMessage(hwnd, Win32Interop.WM_SETICON, new IntPtr(Win32Interop.ICON_SMALL), IntPtr.Zero);
Win32Interop.SendMessage(hwnd, Win32Interop.WM_SETICON, new IntPtr(Win32Interop.ICON_BIG), IntPtr.Zero);
}
public static void HideMinMaxButton(this Window window)
{
IntPtr hwnd = new WindowInteropHelper(window).Handle;
IntPtr style = Win32Interop.GetWindowLongPtr(hwnd, Win32Interop.GWL_STYLE);
if (IntPtr.Size == 4)
{
int intValue = style.ToInt32();
intValue = SetBit(Win32Interop.WS_MAXIMIZEBOX, intValue, false);
intValue = SetBit(Win32Interop.WS_MINIMIZEBOX, intValue, false);
style = new IntPtr(intValue);
}
else
{
long longValue = style.ToInt64();
longValue = SetBit((long)Win32Interop.WS_MAXIMIZEBOX, longValue, false);
longValue = SetBit((long)Win32Interop.WS_MINIMIZEBOX, longValue, false);
style = new IntPtr(longValue);
}
Win32Interop.SetWindowLongPtr(new HandleRef(window, hwnd), Win32Interop.GWL_STYLE, style);
}
