Thread: uincode char array to array<unsigned char,1>^

As the topic describes I need to convert unicode char array to array<unsigned char,1>^

Code:

if ( saveFileDialog1->ShowDialog() == ::DialogResult::OK )
      {
         if ( (myStream = saveFileDialog1->OpenFile()) != nullptr )
         {
			array<String^>^ stringArray;
			array<unsigned char,1>^ charArray; 
			stringArray=this->input->Split('\n');
			
			for (int index=0;index<=stringArray->Length;index++){
				
				charArray=(array<unsigned char, 1>^)stringArray[index]->ToCharArray();//I get a cast exception here.
				myStream->Write(charArray,0,charArray->Length);
			}
			
				filename = saveFileDialog1->FileName;
            myStream->Close();
         }
      }

I also tried marshalling the stringArray[index] to a std::string and using c_str() but that didn't work either.

Wondering. Wouldn't
Code:
myStream->Write(stringArray[index]->toCharArray(), 0 , charArray->Length);
simply work?

As for why it throws an exception, look here. I guess wchar_t is different from unsigned char?

Didn't really know that they were casting exceptions for C-style casting...

No Write takes array<unsigned char,1>^ not array<w_char>^ of the ToCharArray method. I think w_char are to byte unicode charachters, unsigned char is ascii 1 byte charachters the same as a byte array.

I'm just learning about these types so if I have this incorrect please respond and let me know.

That said I still need the correct conversion.

If there is a work around that would be good. What I'm trying to do is write the contents from the existing file to the new file specified in the save dialog.

I managed a work around by avoiding the use of System::IO::Stream and the write method. Instead I did this:

Code:

if ( saveFileDialog1->ShowDialog() == ::DialogResult::OK )
				 {
					 writer = gcnew System::IO::StreamWriter(saveFileDialog1->FileName,false);
					 {
						 array<String^>^ stringArray;
						 //array<unsigned char,1>^ charArray; 
						 stringArray=this->input->Split('\n');

						 for (int index=0;index<=stringArray->Length-1;index++){

							 //charArray=(array<unsigned char, 1>^)stringArray[index]->ToCharArray();
							 writer->WriteLine(stringArray[index]);
						 }

						 filename = saveFileDialog1->FileName;
						 writer->Close();writer = nullptr;
					 }
				 }