CInternetFile::ReadString
Call this member function to read a stream of characters until it finds a newline character.
virtual BOOL ReadString(
CString& rString
);
virtual LPTSTR ReadString(
LPTSTR pstr,
UINT nMax
);
Параметры
pstr
A pointer to a string which will receive the line being read.nMax
The maximum number of characters to be read.rString
A reference to the CString object that receives the read line.
Возвращаемое значение
A pointer to the buffer containing plain data retrieved from the CInternetFile object. Regardless of the data type of the buffer passed to this method, it does not perform any manipulations on the data (for example, conversion to Unicode), so you must map the returned data to the structure you expect, as if the void* type were returned.
NULL if end-of-file was reached without reading any data; or, if boolean, FALSE if end-of-file was reached without reading any data.
Заметки
The function places the resulting line into the memory referenced by the pstr parameter. It stops reading characters when it reaches the maximum number of characters, specified by nMax. The buffer always receives a terminating null character.
If you call ReadString without first calling SetReadBufferSize, you will get a buffer of 4096 bytes.
Исключения
This method can throw exceptions of type CInternetException*.
Требования
Header: afxinet.h