c++java-native-interfacelptstr

Converting from const char * to LPTSTR without USES_CONVERSTION

I am trying to convert const char * to LPTSTR. But i do not want to use USES_CONVERSION to perform that.

The following is the code i used to convert using USES_CONVERSION. Is there a way to convert using sprintf or tcscpy, etc..?

USES_CONVERSION;
jstring JavaStringVal = (some value passed from other function);
const char *constCharStr = env->GetStringUTFChars(JavaStringVal, 0);    
LPTSTR lpwstrVal = CA2T(constCharStr); //I do not want to use the function CA2T..
Solution

  • LPTSTR has two modes:

    An LPWSTR if UNICODE is defined, an LPSTR otherwise.

    #ifdef UNICODE
    typedef LPWSTR LPTSTR;
#else
    typedef LPSTR LPTSTR;
#endif

    or by the other way:

    LPTSTR is wchar_t* or char* depending on _UNICODE

    if your LPTSTR is non-unicode:

    according to MSDN Full MS-DTYP IDL documentation, LPSTR is a typedef of char *:

    typedef char* PSTR, *LPSTR;

    so you can try this:

    const char *ch = "some chars ...";
LPSTR lpstr = const_cast<LPSTR>(ch);