Multiple OpenGL contexts, multiple windows, multithreading, and vsync

Question

I am creating a graphical user interface application using OpenGL in which there can be any number of windows - \"multi-document interface\" style.

If there were one win

Answer 1

thanks @andrewrk for all theses research, i personnaly do like that :

Create first window and his opengl context with double buffer. Active vsync on this window (swapinterval 1)

Create others windows and attach first context with double buffer. Disable vsync on theses others window (swapinterval 0)

For each frame For invert each window (the one with vsync enable at the end). wglMakeCurrent(hdc, commonContext);
draw. SwapBuffer

In that manner, i achieve the vsync and all window are based on this same vsync.

But i encoutered problem without aero : tearing...