open Link probLem in note!

hi
some time when tapped on my note we give this aLErt

upload7.ir/images/30794126762862114032.png

but not's content not 'y'!! in alert show wrong Value

Hi,
In PDFView.m，there need to judge the return value of Annot


if( annot )
{
char uri[512];
int returnValue = Page_getAnnotURI(page, annot, uri, 511);
NSString *nuri = [[NSString alloc]initWithUTF8String:uri];
if(returnValue>0 )//open url
{
if( m_delegate )
[m_delegate OnOpenURL:nuri];
return ;
}