public override void SetIconFromStream(Stream stream)
{
if (WindowInfo.Handle == IntPtr.Zero)
{
throw new InvalidOperationException("Window must be created before an icon can be set.");
}
iconGroup = new IconGroup(stream);
smallIcon = iconGroup.CreateIcon(24, 24);
largeIcon = iconGroup.CreateIcon(256, 256);
SendMessage(WindowInfo.Handle, seticon_message, (IntPtr)0, smallIcon.Handle);
SendMessage(WindowInfo.Handle, seticon_message, (IntPtr)1, largeIcon.Handle);
}
/// <summary>
/// On Windows, SDL will use the same image for both large and small icons (scaled as necessary).
/// This can look bad if scaling down a large image, so we use the Windows API directly so as
/// to get a cleaner icon set than SDL can provide.
/// If called before the window has been created, or we do not find two separate icon sizes, we fall back to the base method.
/// </summary>
internal override void SetIconFromGroup(IconGroup iconGroup)
{
smallIcon = iconGroup.CreateIcon(small_icon_size, small_icon_size);
largeIcon = iconGroup.CreateIcon(large_icon_size, large_icon_size);
var windowHandle = WindowHandle;
if (windowHandle == IntPtr.Zero || largeIcon == null || smallIcon == null)
{
base.SetIconFromGroup(iconGroup);
}
else
{
SendMessage(windowHandle, seticon_message, (IntPtr)icon_small, smallIcon.Handle);
SendMessage(windowHandle, seticon_message, (IntPtr)icon_big, largeIcon.Handle);
}
}
public override void SetIconFromStream(Stream stream)
{
if (WindowInfo.Handle == IntPtr.Zero)
{
throw new InvalidOperationException("Window must be created before an icon can be set.");
}
iconGroup = new IconGroup(stream);
smallIcon = iconGroup.CreateIcon(24, 24);
largeIcon = iconGroup.CreateIcon(256, 256);
// CreateIcon was changed to return null rather than throwing exceptions
// Since we have no fallback method of generating icons, we skip if the icon can't be found
if (smallIcon != null)
{
SendMessage(WindowInfo.Handle, seticon_message, (IntPtr)0, smallIcon.Handle);
}
if (largeIcon != null)
{
SendMessage(WindowInfo.Handle, seticon_message, (IntPtr)1, largeIcon.Handle);
}
}