Every time you click the keys Shift
+ F9
used to make a Build of the project, a Messages where it is possible to view the hint
and warning
of the project, where available MISTAKES the Delphi does not allow the project to be executed.
Example with Hint:
![Hint](https://i.stack.imgur.com/JhXPa.png)
Example with Warning:
![Warning](https://i.stack.imgur.com/PVf2J.png)
As you mentioned @Júniormoreira to edit Hint and Warning to appear just go on Tab Project -> Options -> Delphi Compiler -> Hints and Warnings.
![inserir a descrição da imagem aqui](https://i.stack.imgur.com/gGlpR.png)
You can still make a Build to the project by clicking on Tab Project -> Build Project.
EDIT1:
The only options available to choose from are: TRUE
or FALSE
in the case of Outputs Hints as well as being able to see in the image below:
![inserir a descrição da imagem aqui](https://i.stack.imgur.com/fkMtt.png)
Unlike the Output Warnings who may have the option AS ERRORS
can check in the image below:
![inserir a descrição da imagem aqui](https://i.stack.imgur.com/KYqmZ.png)
It is possible that a Hint will generate an error?
– Jonas Azevedo
Yes, in the answer I mentioned
Ex. Deprected Symbol, quando existe uma variável declarada e não usada, ele gera um HINT, você pode configurar para que seja um ERRO.
– Junior Moreira
Works with Warning, for Hint there is no such option.
– Jonas Azevedo