Visual c++ how to read from rich text box -

i trying read rich text box line line in visual c++ don't know how it. can provide small example of how works? new visual studio , visual c++. do,is store each line rich text box in string,using loop. let's in rich text box have: text1 text2 text3 loop pretty read each line,and other operations it.

you did not kind of rich text box using.

if using .net richtextbox class, can iterate through lines property:

array<string^>^ lines = textbox->lines; int count = lines->length;  (int idx = 0; idx < count; ++idx) {     // use lines[idx] needed... } 

if using mfc cricheditctrl class, can call getlinecount(), linelength(), , getline() methods:

int count = textbox.getlinecount();  (int idx = 0; idx < count; ++idx) {     std::basic_string<tchar> line;      int len = textbox.linelength(idx);     if (len > 0)     {         line.resize(len+1);         len = textbox.getline(idx, &line[0], len);         line.resize(len);     }      // use line needed... } 

if using win32 rich edit control, can send em_getlinecount, em_linelength, , em_getline messages:

int count = sendmessage(htextbox, em_getlinecount, 0, 0);  (int idx = 0; idx < count; ++idx) {     std::basic_string<tchar> line;      int len = sendmessage(htextbox, em_linelength, idx, 0);     if (len > 0)     {         line.resize(len+1);         *(reinterpret_cast<word*>(&line[0])) = (word)len;         len = sendmessage(htextbox, em_getline, idx, reinterpret_cast<lparam>(&line[0]));         line.resize(len);     }      // use line needed... }