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Free a graphics extended data structure
Source position: agraphics.pas line 2163
procedure GfxFree( 
Node: PExtendedNode 
); 
Node 

pointer to a graphics extended data structure obtained via GfxFree(). 
Free a special graphics extended data structure (each of which begins with an ExtendedNode structure). The node is deallocated from memory. graphics will disassociate this special graphics extended node from any associated data structures, if necessary, before freeing it (see GfxAssociate()).
An Alert() will be called if you attempt to free any structure other than a graphics extended data structure obtained via GfxFree().

Allocate a graphics extended data structure 


associate a graphics extended node with a given pointer 


Find a graphics extended node associated with a given pointer 