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SoContextHandler - The SoContextHandler class is for now to be treated as an internal class.
#include <Inventor/misc/SoContextHandler.h> Public Types typedef void ContextDestructionCB (uint32_t contextid, void *userdata) Static Public Member Functions static void destructingContext (uint32_t contextid) static void addContextDestructionCallback (ContextDestructionCB *func, void *closure) static void removeContextDestructionCallback (ContextDestructionCB *func, void *closure)
The SoContextHandler class is for now to be treated as an internal class. Since: Coin 2.0
Member Function Documentation
void SoContextHandler::destructingContext (uint32_tcontextid) [static] This method must be called by client code which destructs a context, to guarantee that there are no memory leaks upon context destruction. This will take care of correctly freeing context-bound resources, like OpenGL texture objects and display lists. Before calling this function, the context must be made current. Note that if you are using one of the standard GUI-binding libraries from Kongsberg Oil & Gas Technologies, this is taken care of automatically for contexts for canvases set up by SoQt, SoWin, etc. void SoContextHandler::addContextDestructionCallback (ContextDestructionCB *func, void *closure) [static] Add a callback which will be called every time a GL context is destructed. The callback should delete all GL resources tied to that context. All nodes/classes that allocate GL resources should set up a callback like this. Add the callback in the constructor of the node/class, and remove it in the destructor. See Also: removeContextDestructionCallback() void SoContextHandler::removeContextDestructionCallback (ContextDestructionCB *func, void *closure) [static] Remove a context destruction callback. See Also: addContextDestructionCallback()
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