i add a fastlineSeries to the TChart . i set the DateTimeFormat:='hh:nn:ss:zzz' but it still not display the millisecond part . why? how can i display the millisecond in x axis? thank you for help

I got the idea and I known how to do it. thank you both Luc Pattyn and Cédric Moonen~ :) :)

you have memory leak. check your program that every new function match a delete function. remember to release every resource you have got.

Hi, I know Assert function can raise a break in Debug mode. It helps a lot. but when it is in Release mode,the Compile ignore Aseert function. then how can I know it meets a error? for example: int open_file(char * filename) { FILE *fp; fp=fopen(filename,"wr"); //p1 assert(fp!=NULL); //p2 //do something //p3 } in Debug mode: when p1 fail, fp will be NULL and the assert will raise a break,then it exit. in Release mode: the Compile ignore the assert function, what should I do if fopen failed? if it will go on running statements after p3 ? to avoid this happend, should I have to replace all the assert statements in Release mode? thank you.