in EnvDTE80.Interfaces/_dispTextDocumentKeyPressEvents_SinkHelper.cs [18:23]
public void BeforeKeyPress(string A_1, TextSelection A_2, bool A_3, ref bool A_4)
{
if (m_BeforeKeyPressDelegate == null)
return;
m_BeforeKeyPressDelegate(A_1, A_2, A_3, ref A_4);
}