Thanks for the discussion above.
JUCE too difficult to learn. I decided to give up.
I don’t know how to implement and solve many problems. no tutorial, no examples, and I don‘t understand the deep discussion. I want to rote, but no way and contents. API documentation like the dictionary, no idea how to start. Simple question, one or two statements and examples can explain, but people here are like getting more and more complex, more and more abstract. In fact, one or two statements and examples was enough, but there was no. I’m just a beginner. JUCE not a novice can use, perhaps it is only for professionals.
MFC may be suitable for me, this relatively simple, and very beautiful, clear font and the font size is right, no complicated set, lot of tutorial and examples.
Thanks again, deepest blessing.