Dialog Boxes

Alright. I have a dialog box. With a list. I want to get the text of one of the entries in the list. The list is IDC_LIST. The handle to IDC_LIST is hList. What function can get a string of a certain entry in that list?

No function, you need to send messages to the window.

This will get line 0 from the listbox:

Code:

// Want item 0 (the first item):
unsigned int listItem = 0; 


//First we find out how big it will be:
unsigned int charCount = ::SendMessage(hList,LB_GETTEXTLEN, (WPARAM) listItem, (LPARAM) 0);


// Then allocate enough space for the text plus terminating character:
TCHAR * buffer = new TCHAR[charCount + 1]; 


// Now, try to get the text itself:
if (::SendMessage(hList,LB_GETTEXT,(WPARAM)listItem,
                 (LPARAM)buffer) == LB_ERR){
  // an error occured.  Handle it here.
}
else {
  // We know no error occured.  Do stuff with buffer.
}

// We allocated string space, so we must free it once we don't need it anymore:
delete[] buffer;