Question

    textBoxOutput = CreateWindowEx(WS_EX_CLIENTEDGE,L"Edit",NULL,WS_CHILD | WS_VISIBLE | WS_VSCROLL | ES_AUTOVSCROLL |  ES_MULTILINE | ES_READONLY ,10,81,500,90,hMainWindow,NULL,NULL,NULL);
.
.
.

    while(!buffer.empty()) //Buffer contains arrays of  wchar_t* type
            {   
                SendMessage(textBoxOutput,EM_SETSEL,GetWindowTextLength(textBoxOutput),GetWindowTextLength(textBoxOutput));
                SendMessage(textBoxOutput,EM_REPLACESEL,FALSE, (LPARAM) buffer.front()); 

                delete [] buffer.front();
                buffer.pop();
            }

There are maximally 30000 wide characters visible. Is it possible to at least increase this number?

Answer 1

You can use the EM_LIMITTEXT message for this. From the reference:

It sets the text limit of an edit control. The text limit is the
maximum amount of text, in TCHARs, that the user can type into the
edit control.