share textures among RCs in different threads,is it possible?

OpenGL OpenGL: Advanced Coding
1

I create a render context in main thread and a work thread,and in main thread I call wglShareLists() to share textures among the 2 RCs,but the wglShareLists() return false,why?Is it possible that the RCs in different threads can share same textures?

2

You first have to make sure that both RC’s have the same pixel format.