调整大小不会执行，直到我手动调用ClientHeigh或直到我手动调整大小

I want to create a custom control derived from TPanel that contains an image and a bunch of other controls on it. After writing the code I have some weird behavior in my program. I realized that some vars that were supposed to be initialized in TDisplay.Resize (override) was never initialized because the Resize was never executed. I want to create a custom control derived from