Summary of methods of char* to LPCWSTR solution in Windows programming

One of the problems that often comes up in Windows programming is the conversion between strings, and the development process always encounters a problem where the compiler prompts you to fail the format conversion. So I summed up several methods of settlement.

1. Convert Macros by t2w

char* szstr = "Balabala";

CString str = CString (SZSTR);

Uses_conversion;
LPCWSTR Wszclassname = new Wchar[str. GetLength () +1];
wcscpy ((LPTSTR) wszclassname,t2w ((LPTSTR) str. GetBuffer (NULL)));
Str. ReleaseBuffer ();

2, through the A2CW conversion

char* szstr = "Balabala";
CString str = CString (SZSTR);
Uses_conversion;
LPCWSTR Wszclassname = A2CW (W2A (str));
Str. ReleaseBuffer ();

3, through the swprintf () conversion

Char a[] = "c://";
Strcat (A, "balabala.wav");
WCHAR wsz[64];
swprintf (Wsz, L "%s", a);
LPCWSTR M_szfilename = Wsz;

4, LPCWSTR is actually a const WCHAR * type, can be converted by MultiByteToWideChar function

char* szstr = "Balabala";
WCHAR wszclassname[256];
memset (wszclassname,0,sizeof (wszclassname));
MultiByteToWideChar (Cp_acp,0,szstr,strlen (SZSTR) +1,wszclassname,
sizeof (Wszclassname)/sizeof (wszclassname[0]);

Hope to be helpful to everyone.

Summary of methods of char* to LPCWSTR solution in Windows programming