🚀 go-pugleaf

Mike Collins wrote:
> Hi all, just a quick question, getting myself a bit confussed.
> 
> I'm using a native api call that is expecting a PVOID value to indicate a 
> string value in it's parameters.  The documentation states:
> 
> Data
> Pointer to a caller-allocated buffer containing the data for the value 
> entry.
> DataSize
> Specifies the size in bytes of the Data buffer. If Type is any of the 
> REG_XXX_SZ, this value must include the terminating zero(s).
> 
> Can someone explain to me how to achieve this using the WideString or 
> AnsiString data types that are available - I need to dynamically alocate the 
> values as I'll only know them at runtime.

AnsiString str("value");

SomeAPI(const_cast<PVOID>(str.data()));

std::string str("value");

SomeAPI(reinterpret_cast<PVOID>(str.c_str()));

WideString str("value"); //here depends what does API expect

//If API expects unicode string then it should look like this:
SomeAPI(reinterpret_cast<PVOID>(str.c_bstr()));

//If it expects non unicode string then convert widestring to ansistring
// and call api like it was for any ansistring