I have a working code in dev-c++ where I'm transmitting from a host PC to a mobile robot using bluetooth. However, I'm getting errors when I try to integrate the working program into my Qt GUI. I'm getting this particular error:

In member function 'void Bluetooth::initialize()': error: cannot convert 'const char*' to 'const WCHAR*' for argument '1' to 'void* CreateFileW(const WCHAR*, DWORD, DWORD, _SECURITY_ATTRIBUTES*, DWORD, DWORD, void*)'

Here's my code:
bluetooth.h
Qt Code: 
  1. #ifndef BLUETOOTH_H
  2. #define BLUETOOTH_H
  3.  
  4. #include <windows.h>
  5.  
  6. class Bluetooth {
  7. 	public:
  8. 		Bluetooth();
  9. 		~Bluetooth();
  10.  
  11. 		void initialize();
  12. 		void transmit(int right, int left);
  13.  
  14. 	private:
  15. 		DWORD bytes_written;
  16. 		BOOL Status;
  17. 		HANDLE SerialHandle;
  18. 		DCB SerialConfigs;
  19. };
  20.  
  21. #endif
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bluetooth.cpp
Qt Code: 
  1. #include <QDebug>
  2. #include "bluetooth.h"
  3. #include "settings.h"
  4.  
  5. Bluetooth::Bluetooth() {}
  6.  
  7. Bluetooth::~Bluetooth() {}
  8.  
  9. void Bluetooth::initialize() {
  10. 	qDebug()<<"Initializing BlueTooth...";
  11. 	Status = 0;
  12. 	SerialHandle = CreateFile("COM5",
  13. 				GENERIC_WRITE,
  14. 				0,
  15. 				NULL,
  16. 				OPEN_EXISTING,
  17. 				FILE_ATTRIBUTE_NORMAL,
  18. 				NULL);
  19.  
  20. 	if(SerialHandle==INVALID_HANDLE_VALUE) {
  21. 		if(GetLastError()==ERROR_FILE_NOT_FOUND) {
  22. 			qDebug()<<"E: Serial Port Does Not Exist!";
  23. 		}
  24. 	qDebug()<<"An Error Occured!";
  25. 	}
  26. 	ZeroMemory(&SerialConfigs, sizeof(SerialConfigs));
  27. 	SerialConfigs.DCBlength = sizeof(SerialConfigs);
  28. 	if (!GetCommState(SerialHandle, &SerialConfigs)) {
  29. 		qDebug()<< "Error Getting State!";
  30. 	}
  31. 	SerialConfigs.BaudRate = CBR_9600;
  32. 	SerialConfigs.ByteSize = 8;
  33. 	SerialConfigs.StopBits = ONESTOPBIT;
  34. 	SerialConfigs.Parity = NOPARITY;
  35.  
  36. 	if(!SetCommState(SerialHandle, &SerialConfigs)) {
  37. 		qDebug()<<"Error Setting Serial Port State!";
  38. 	}
  39. 	qDebug()<<"Initialization Done";
  40. }
  41.  
  42. void Bluetooth::transmit(int right, int left) {
  43. 	WriteFile(SerialHandle,
  44. 				&right,	 // Outgoing data
  45. 				1,		 // Number of bytes to write
  46. 				&bytes_written, // Number of bytes written
  47. 				NULL);
  48. 	Status = WriteFile(SerialHandle,   
  49. 				&left,		
  50. 				1,				
  51. 				&bytes_written,	
  52. 				NULL);
  53. 	if (Status == 0) {
  54. 		qDebug()<<"Error Writing";
  55. 	}
  56. }
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