How can I copy a CHAR Variable to WCHAR Variable in C++ - c++

Question

I want to convert a CHAR file to UNICODE file.
I read a file character by character in CHAR file type and then save this character in a CHAR Variable and then I want to copy this CHAR Variable to a WCHAR Variable and then I Write the the WCHAR Variable in to a UNICODE file.
here is the code :
#include<Windows.h>
#include<tchar.h>
int _tmain(int argc, LPCTSTR argv[])
{
HANDLE hInfile, hOutfile;
CHAR f1;
WCHAR f2;
DWORD Rd, Wrt;
INT i;
CreateFile(argv[1], GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, NULL,NULL);
CreateFile(argv[2], GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,NULL);
while ((ReadFile(hInfile, &f1, sizeof(CHAR), &Rd, NULL) && Rd>0))
{
**_tccpy(f2, f1);**
WriteFile(hOutfile, &f2, Rd, &Wrt, NULL);
}
CloseHandle(hInfile);
CloseHandle(hOutfile);
}
in bold code is the problem, how can I copy CHAR Variable to a WCHAR Variable.
the _tccpy function and strcpy function cant do this, because the prototype of both of them is char or wachar.

Answer 1

Microsoft Specific
Use wmain instead of main if you want to write portable code that adheres to the Unicode programming model.
wmain( int argc, wchar_t *argv[ ], wchar_t *envp[ ] )
wmain at ms http://msdn.microsoft.com/en-us/library/bky3b5dh(VS.80).aspx

Answer 2

I have always found these string basics and conversions very useful when dealing with Unicode in C++.