How do you convert wchar_t to char?

because i get this error message:
error C2664: 'CComPort::Open' : cannot convert parameter 1 from 'wchar_t [4]' to 'char *'

: How do you convert wchar_t to char?
:
: because i get this error message:
: error C2664: 'CComPort::Open' : cannot convert parameter 1 from
: 'wchar_t [4]' to 'char *'
You try to convert a wchar_t array to a char pointer. Be carefull wit this, as a wchar_t typically can hold more values than a char, so in the cast you might lose information! You can check this e.g. like this:

wchar_t wide = /* something */;
assert(wide >= 0 && wide < 256 &&);
char myChar = (char) wide; /* C style cast */

To convert a wchar_t array to a char pointer:

wchar_t myArray[4] = /* something */;
char * myPointer = (char*) &myArray[0];

Good luck,

bilderbikkel

In most cases you can not make that conversion by simple typecasting as bilderbikkel is suggesting. You have to use one of several conversion functions, such as wcstombs()

wchar_t helloW[] = _TEXT("Hello World");
char helloA[20] = {0};
// now convert the string
wcstombs(helloA, helloW, wcslen(helloW)+1);

>>error C2664: 'CComPort::Open' : cannot convert parameter 1 from 'wchar_t [4]' to 'char *'

Depending on how you coded it you might be able to simply use one of the UNICODE macros as I did in the HelloWorldW example above. Just surround the literal text with the _TEXT macro. It only works with literals, not character arrays.

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