Image problem

qylhbbj

I made a seven-segment display control by myself, its parent class is Image, and the display is normal in the main thread, but the redrawing in other threads will cause the entire control to disappear (redrawing a lot of times). I do n’t know friends Know where the problem is?

mad_diablo

Requires synchronization method.

qylhbbj

mad_diablo
Can you make it clear that the younger brother has just played recently.

7677u67

Synchronize ()

qylhbbj

I use API to create threads, so I can't use Synchronize(), the problem has been solved. Thank you.