==32456== Address 0x1D19C938 is 0 bytes inside a block of size 46 free'd
==32456== at 0x1B9003C3: free (in /usr/lib/valgrind/vgpreload_memcheck.so)
==32456== by 0x1CAF1DAB: GdipFree (general.c:125)
==32456== by 0x1CAF85FD: MeasureOrDrawString (graphics.c:2197)
==32456== by 0x1CAFA004: GdipMeasureString (graphics.c:2786)
==32456== by 0x1D1E995C: ???
==32456== by 0x1D1E971E: ???
==32456== by 0x1D1E9511: ???
==32456== by 0x1D1E9461: ???
==32456== by 0x1D1E9336: ???
==32456== by 0x1CAD0746: ???
==32456== by 0x1C364845: ???
==32456== by 0x1C364781: ???