Get a technique by name.
The name of the technique.
A pointer to an ID3DX11EffectTechnique. If a technique with the appropriate name is not found an invalid technique is returned. ID3DX11EffectTechnique::IsValid should be called on the returned technique to determine whether it is valid.
An effect contains one or more techniques; each technique contains one or more passes. You can access a technique using its name or with an index.