private void EnsureCanvas()
{
if (canvasForm == null || canvasForm.IsDisposed)
{
canvasForm = new GraphicsForm(buddyUid);
UpdateTitle();
}
canvasForm.Show();
}
private void ChatForm_FormClosing(object sender, FormClosingEventArgs e)
{
if (canvasForm != null && !canvasForm.IsDisposed)
{
canvasForm.Close();
canvasForm = null;
}
ChatForm _;
Program.chatFormMap.TryRemove(buddyUid, out _);
}