// if a shadow window does not yet exist, create it
private bool bMakeShadow()
{
// a shadow cannot have another shadow
if (this.m_bIsShadow)
{
return(false);
}
// only generate a shadow if required
if (m_bHasShadow != true)
{
return(false);
}
// no shadows in design mode
if (DesignMode == true)
{
return(false);
}
// create shadow if non exists
if (m_fmShadow == null)
{
m_fmShadow = new CBalloon.CBalloonBase();
this.Owner = m_fmShadow;
m_fmShadow.Width = this.Width;
m_fmShadow.Height = this.Height;
m_fmShadow.StartPosition = FormStartPosition.Manual;
m_fmShadow.Location = new Point(this.Location.X + C_SHADOW, this.Location.Y + C_SHADOW);
m_fmShadow.IsShadow = true;
m_fmShadow.Opacity = 0.6;
}
return(true);
}
private void DestroyShadow()
{
if (m_fmShadow != null)
{
// if the shadow has an owner, we need to attach the balloon to the owner and
// sever existing owned form relationships
if (m_fmShadow.Owner != null)
{
this.Owner = m_fmShadow.Owner;
m_fmShadow.RemoveOwnedForm(this);
this.Owner.RemoveOwnedForm(m_fmShadow);
}
m_fmShadow.Close();
m_fmShadow.Dispose();
m_fmShadow = null;
}
}