Serial::WriteLine & Console::WriteLine "ASCII" Problems

[Tenaious]

Hi,

Sorry about such a ridicules question, but I have no clue what’s going on.

I'm Using Visual Studio 08, programming in C++.
I have a Serial Port created with:

static System::IO::Ports::SerialPort^ SP1= (gcnew System::IO::Ports::SerialPort());
SP1->PortName="COM1";
SP1->BaudRate=115200;
SP1->Open();

The problem comes in when I am attempting to Send on the COM port:

char X[2]={'0','0'};
Console::WriteLine(X[0].ToString());
cout<<X[0]<<endl;
SP1->WriteLine(X[2].ToString());

Now It might be a problem with ".ToString( )"; In any case, the outputs are as followed:
"[Console]"
48
0
"[/Console]"
"[COM1]"
48
"[COM1]"

those 48's should be 0's. Since If I do:

System::String^ out="0";
SP1->WriteLine(out);

I get "0" on COM1.

I wouldn't really like to make my own char2String converter with a switch case of about 75 elements (I need most of the symbols as well as upper/lower/#'s), not knowing if it would even work.
Anyone have any other options? Any Replies are much appreciated.

Thank you,
T

[Tenaious]

Answer

Hey thanks,

Posting made me think of something. I believe the problem was the char to <wchar> conversion in the ".ToString( )." so first making it a std::string then marshaling it to a System::String^ did the proper conversion.

char X[2]={'0','0'};
std::string str=X;

marshal_context^ context = gcnew marshal_context();
System::String^ OUT;
ret= context->marshal_as<System::String^>( str );
delete context;

SP1->WriteLine(OUT);

Thanks for the Third person veiw,
T

[gpraghuram]

The value 48 is the ASCII value of the character 0.
I think when u print the X[0] it gtes conevrted like that.


Raghu