🔒 Locked

Multithreading win32

Started by __tunjin__ Oct 28, 2002 at 2:30 AM 4 replies 600+ views

Original Post

Oct 28, 2002 at 2:30 AM

Does anyone know a nice doc about opengl and multithreading on win32? My problem is the following: * my main process creates a window / dc / glrc * sometimes another thread needs to draw into the same window. Now simply calling wglMakeCurrent() with the dc/glrc of the main process does not work... * i used google

, but didn''t find a whole lot except for some newsgroup posts that were not that helpful any ideas / hints?

Andrew Russell

Oct 28, 2002 at 4:20 AM

It is not posible to use OpenGL accross threads.

The only way of doing OGL in a multithreaded app is if only one thread does the OGL stuff.

Can''t be done any other way.

Do not meddle in the affairs of moderators, for they are subtle and quick to anger.

ANDREW RUSSELL STUDIOS
Cool Links :: [ GD | TG | MS | NeHe | PA | SA | M&S | TA | LiT | H*R ]
Got Clue? :: [ Start Here! | Google | MSDN | GameDev.net Reference | OGL v D3D | File Formats | Go FAQ yourself ]

Dean Harding

Oct 28, 2002 at 4:45 AM

Just further to what Andrew said, each GLRC is associated with a single thread. You can have multiple threads using multiple GLRCs, or multiple GLRCs in one thread, but not multiple threads using one GLRC.

If I had my way, I''d have all of you shot!

codeka.com - Just click it.