mainform.h

一个简明的串口通讯例子

//---------------------------------------------------------------------------

#ifndef MainFormH
#define MainFormH
//---------------------------------------------------------------------------
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>
#include <ExtCtrls.hpp>

#include "Com.h"
//---------------------------------------------------------------------------
class TFormMain : public TForm
{
__published:	// IDE-managed Components
	TRadioGroup *RadioGroupCOM;
	TEdit *EditBaud;
	TLabel *Label1;
	TEdit *EditSendData;
	TMemo *MemoRcvData;
	TButton *ButtonSend;
	TButton *ButtonOK;
	TLabel *Label2;
	TLabel *Label3;
	TBevel *Bevel1;
	TBevel *Bevel2;
	TLabel *Label4;
	void __fastcall ButtonOKClick(TObject *Sender);
	void __fastcall ButtonSendClick(TObject *Sender);
	void __fastcall FormClose(TObject *Sender, TCloseAction &Action);
private:	// User declarations
	int iNo;
        unsigned char ucData;
	TSerialPort *SerialPort;	//串口控制类对象

	void __fastcall OnComRx(TMessage &Message);
	BEGIN_MESSAGE_MAP//指定消息WM_COMM_RXCHAR的处理函数为OnComRx
		MESSAGE_HANDLER(WM_COMM_RXCHAR, TMessage, OnComRx)
	END_MESSAGE_MAP(TForm)
public:		// User declarations
	__fastcall TFormMain(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TFormMain *FormMain;
//---------------------------------------------------------------------------
#endif