Issue while converting LPTSTR to char *

[pskumaran]

Hi All,

I am trying to convert LPTSTR to char* by using sprintf,
But sprintf copies only the first character from the string. i tried both array and pointer also , but the result is same. Here is my code...

LPTSTR TestStr= _T("Test String");
char s1[1000];
char *s2;
s2 = (char *) malloc(1000*sizeof(char));
sprintf(s1,"%s",TestStr);
sprintf(s2,"%s",TestStr);

Both s1 and s2 stores only 'T'.

Kindly help me in this regard...
Thanks for your time...

Regards
PSKumaran.

[AHMEDYO]

HI...

you using unicode or muli-byte characters??

Best Regards

[pskumaran]

Hi ,

Thanks for the reply.

I use UNICODE.

Regards
PSKumaran.

[xoinki]

hi,
If u have compiled your program with UNICODE and _UNICODE defined, then LPTSTR will automatically become LPWSTR (Long pointer to a wide string) u cant assign this to char* but u can assign this to a variable of type wchar_t*.

Thnx
Xoinki

[xoinki]

hi,
after using wchar_t* use swprintf() to get proper output.

Thnx
Xoinki

[pskumaran]

Thanks a lot Xoinki for the timely help.

I used wchar_t* as you suggested, It works fine.

Regards
PSKumaran.

[weaknessforcats]

LPTSTR TestStr= _T("Test String");
char s1[1000];
char *s2;
s2 = (char *) malloc(1000*sizeof(char));
sprintf(s1,"%s",TestStr);
sprintf(s2,"%s",TestStr);

You could have avoided this whole mess by not using char in the first place. The whole point of the TCHAR mappings is to seamlessly switch between char and wchar_t based on the project settings.

That means once you use a TCHAR macro you cannot use char or wchar_t in your code. You fixed this by using wchar_t and now your code won't work with char.

You should have used TCHAR, _stprintf() and TEXT:

LPTSTR TestStr= TEXT("Test String");
TCHAR s1[1000];
PTCHAR s2;
s2 = (PTCHAR) malloc(1000*sizeof(TCHAR));
_stprintf(s1,TEXT("%s"),TestStr);
_stprintf(s2,TEXT("%s"),TestStr);
 

Read this http://msdn2.microsoft.com/en-us/library/ms860358.aspx.