SoContextHandler - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 2.5.0
Note : Coin
NAMESoContextHandler − The SoContextHandler class is for now to be treated as an internal class.
SYNOPSIS
#include <Inventor/misc/SoContextHandler.h>
Public Typestypedef void ContextDestructionCB(uint32_t contextid, void *userdata)
Static Public Member Functionsstatic void destructingContext (uint32_t contextid)
static void addContextDestructionCallback (ContextDestructionCB *func, void *closure)
static void removeContextDestructionCallback (ContextDestructionCB *func, void *closure)
Detailed DescriptionThe SoContextHandler class is for now to be treated as an internal class. Since Coin 2.0
Member Function Documentation
void SoContextHandler::destructingContext (uint32_t contextid) [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 Systems in Motion, this is taken care of automatically for contexts for canvases set up by SoQt, SoWin, etc. References SbList< Type >::getArrayPtr(), and SbList< Type >::getLength().
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()
AuthorGenerated automatically by Doxygen for Coin from the source code. 0
Johanes Gumabo
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