How can I change some Compiler parameters
Read the manual. I think you can turn off Unicode in the "General" section in the project properties, the "Character Set" setting, by selecting "Use Multi-Byte Character Set".
So I think how to call the TextOut?
I think it will work if you change "TextOut" to "TextOutA". But you will find this is just the first of many, many changes you will have to make. Better to find the Unicode setting in your compiler.