What Is the Simplest Way to Convert Char[] To/From Tchar[] in C/C++(Ms)

What is the simplest way to convert char[] to/from tchar[] in C/C++(ms)?

MultiByteToWideChar but also see "A few of the gotchas of MultiByteToWideChar".

Converting _TCHAR* to char*

The quickest solution is to just change the signature to the standard one. Replace:

int _tmain( int argc, _TCHAR* argv[] )

With

int main( int argc, char *argv[] )

This does mean on Windows that the command line arguments get converted to the system's locale encoding and since Windows doesn't support UTF-8 here not everything converts correctly. However unless you actually need internationalization then it may not be worth your time to do anything more.

TCHAR* to char*

Use _tremove instead of remove. It works on const TCHAR*.

Am I converting properly from const char * to TCHAR*?

(TCHAR*)"Process.exe" is not a valid type-cast. It will "work" when the project charset is set to ANSI/MBCS, but it will produce garbage if the charset is set to Unicode.

Using TEXT("Process.exe") is the correct way to make a string literal use TCHAR characters.

GetBaseAddressByName(aProcs[i], TEXT("Process.exe"));

However, you need to change your pN parameter to const TCHAR * (or LPCTSTR) instead:

void GetBaseAddressByName(DWORD pID, const TCHAR *pN);

void GetBaseAddressByName(DWORD pID, LPCTSTR pN);

A string literal is const data, and you cannot pass a pointer-to-const-data where a pointer-to-non-const-data is expected (without casting the const away with const_cast). That is why you were still getting errors when trying to use the TEXT()/_T() macros.

How concatenate a char with TCHAR array?

gen_random should get char array with at least 11 characters (10 for size + 1 for terminating null).

So it should be:

char str[10+1]; //or char str[11];
gen_random(str, 10);

in addition, the format string should be: "%s\\%hs", the first is TCHAR* type (if UNICODE defined wchar_t* if not char*) the second is always char* type.

hs, hS

String. This value is always interpreted as type LPSTR, even
when the calling application defines Unicode.

look here

Note: in Microsoft documentation:

• LPSTR = always char*
• LPWSTR = always wchar_t*
• LPTSTR = TCHAR* (if UNICODE defined: wchar_t*, else: char*)

Converting TCHAR to a char* for strstr function

Instead of converting to char * to use in strstr, you should use the TCHAR-equivalent, _tcsstr; it'll compile to the correct call to either strstr or wcsstr.

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