gpiodlg.cpp

widows ce 5.0 的一个简单流接口驱动程序.

// GPIODlg.cpp : implementation file
//

#include "stdafx.h"
#include "GPIO.h"
#include "GPIODlg.h"

#include "GPIO2.H"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CGPIODlg dialog

HANDLE hFile =INVALID_HANDLE_VALUE;

CGPIODlg::CGPIODlg(CWnd* pParent /*=NULL*/)
	: CDialog(CGPIODlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CGPIODlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CGPIODlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGPIODlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CGPIODlg, CDialog)
	//{{AFX_MSG_MAP(CGPIODlg)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_BN_CLICKED(IDC_BUTTON3, OnButton3)
	ON_BN_CLICKED(IDC_BUTTON4, OnButton4)
	ON_BN_CLICKED(IDC_BUTTON5, OnButton5)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGPIODlg message handlers

BOOL CGPIODlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	CenterWindow(GetDesktopWindow());	// center to the hpc screen

	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}



void CGPIODlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
//	BOOL ret;
    BYTE pinnum=10;

	hFile=CreateFile(TEXT("SPL1:"),GENERIC_READ | GENERIC_WRITE,0,
		              NULL,OPEN_EXISTING,0,0);
	if(hFile==INVALID_HANDLE_VALUE)
	{
		MessageBox(_T("can't open!"));
		return;

	}
	else
	{
			MessageBox(_T(" open successful!"));
	}
	
}

void CGPIODlg::OnButton2() 
{
	// TODO: Add your control notification handler code here
	if(hFile!=INVALID_HANDLE_VALUE)
	{
		CloseHandle(hFile);
		hFile=INVALID_HANDLE_VALUE;
	}
}

void CGPIODlg::OnButton3() 
{
	// TODO: Add your control notification handler code here
	BOOL ret;
	BYTE y;
	ret=::DeviceIoControl(hFile,1,&y,1,NULL,0,NULL,NULL);
	
}

void CGPIODlg::OnButton4() 
{
	// TODO: Add your control notification handler code here
	BYTE y;
	ReadFile(hFile,&y,1,NULL,NULL);
	
}

void CGPIODlg::OnButton5() 
{
	// TODO: Add your control notification handler code here
   BYTE y;
   WriteFile(hFile,&y,1,NULL,NULL);
}