Call this member function to retrieve the title or text associated with a control in a dialog box.
Specifies the integer identifier of the control whose title is to be retrieved.
Points to the buffer to receive the control's title or text.
Specifies the maximum length (in characters) of the string to be copied to lpStr. If the string is longer than nMaxCount, it is truncated.
A reference to a CString.
Specifies the actual number of characters copied to the buffer, not including the terminating null character. The value is 0 if no text is copied.
The GetDlgItemText member function copies the text to the location pointed to by lpStr and returns a count of the number of bytes it copies.