[fpc-pascal] Disposing pointers and memory leaks

Joseph Montanez jmontanez at gorilla3d.com
Sun Mar 29 11:02:26 CEST 2009

Im struggling to get into memory management and im having issues.

      WriteLn('New Cursor');
      Cursor := DrawPixel(Screen, X, Y, 253, 253, 253);
      WriteLn('Assign Cursor');
      WriteLn('Render Cursor');
      {It dies here were did cursor go?}
      WriteLn('Dispose Cursor');

An unhandled exception occurred at $00407C9A :
EAccessViolation : Access violation

It never makes it to Dispose(Cursor);, so my best guess is something
else removed it before I did? Im using SDL library so maybe it cleans
up for me. But if  not then maybe I can getting the wrong idea here.
And if it was removed before I try to remove it is there a way to
check if the pointer is still in memory?

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