AnnSetLineWidth example for C++ Builder
void TForm1::TestAnnLineWidth ( HANNOBJECT hAnnObject )
{
L_DOUBLE dLineWidth; /* Object line width */
/* Double the line width */
LEADAnn1->AnnGetLineWidth ( hAnnObject, dLineWidth );
LEADAnn1->AnnSetLineWidth ( hAnnObject, dLineWidth * 2, false );