The 'delighted' group
These adjectives indicate that someone is happy about the event or situation indicated in the to-infinitive clause.
You've got to be very thankful to win once, never mind twice.
In the case of delighted, happy, pleased, and proud, the adjective often introduces something that someone wants to say.
amused chuffed content delighted ecstatic glad grateful gratified happy honoured overjoyed pleased privileged proud relieved thankful thrilled
We're also delighted to announce that venues have already been arranged for all the concerts.
I'm pleased to say that we're running on schedule.