Export (0) Print
Expand All

CArchive::WriteString

Use this member function to write data from a buffer to the file associated with the CArchive object.

void WriteString( 
   LPCTSTR lpsz  
);

lpsz

Specifies a pointer to a buffer containing a null-terminated text string.

The terminating null character ('\0') is not written to the file; nor is a newline automatically written.

WriteString throws an exception in response to several conditions, including the disk-full condition.

Write is also available, but rather than terminating on a null character, it writes the requested number of bytes to the file.

CFile myFile(_T("My__test__file.dat"), 
   CFile::modeCreate | CFile::modeReadWrite);
CString str1("String1"), str2("String2"), str;

// Create a storing archive.
CArchive arStore(&myFile, CArchive::store);

// Write str1 and str2 to the archive
arStore.WriteString(str1);
arStore.WriteString(_T("\n"));
arStore.WriteString(str2);
arStore.WriteString(_T("\n"));

// Close the storing archive
arStore.Close();

// Create a loading archive.
myFile.SeekToBegin();
CArchive arLoad(&myFile, CArchive::load);

// Verify the two strings are in the archive.
arLoad.ReadString(str);
ASSERT(str == str1);
arLoad.ReadString(str);
ASSERT(str == str2);

Header: afx.h

Show:
© 2014 Microsoft