Toolkit Reference |
This extension function allocates memory for the Vtk_Extension structure and creates an empty extension structure.
ctxt | Pointer to the Toolkit context created using the Vtk_CtxtNew function and for which memory has been allocated. |
Vtk_Extension | The function has completed successfully. The function returns the Vtk_Extension structure that has been newly created and initialized. |
NULL | The function has failed. |
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