怎么把LPCSTR转换成WCHAR *？

Question

How to convert LPCSTR to WCHAR* into a Unicode project, please ? I haven't found much on the net.

Answer 1

If you are NOT including AtlBase.h or AtlConv.h headers,

#include <windows.h>

LPCSTR lpcszTemp = "Hello World" ;

int wchars_num =  MultiByteToWideChar( CP_UTF8 , 0 , lpcszTemp  , -1, NULL , 0 );
WCHAR* wstr = new WCHAR[wchars_num];

MultiByteToWideChar( CP_UTF8 , 0 , lpcszTemp  , -1, wstr , wchars_num );
// ...Other codes...
delete[] wstr;

Answer 2

Refer to this Convert from a LPCTSTR to a wchar*

or

here