SendTo Send char array under the Unicode character set in VC

UpdateData (TRUE);//Refreshes the value of the control to the corresponding variable
int len = M_strsend.getlength ();
if (0 = = len)
{
Strstate.format (L "Please fill in the data you need to send!) ");
GetDlgItem (idc_static_send_state)->setwindowtext (strstate); dynamically specifies static text display content
Return
}
int bytelensend = (len + 1) *sizeof (wchar_t);
USES_CONVERSION;//the macro definition required for character encoding conversion
int sendlen = Snddata (W2A (m_strsend), bytelensend);
if (bytelensend = = Sendlen)
{
M_strreceived.setwindowtext (M_strsend);
GetDlgItem (idc_edit_send)->setwindowtext (L "");
}

SendTo Send char array under the Unicode character set in VC