set0dlg.cpp

一本关于用计算机控制电子膨胀阀的程序

// Set0Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "ExpansionValveController.h"
#include "Set0Dlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CSet0Dlg dialog


CSet0Dlg::CSet0Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSet0Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSet0Dlg)
	m_steps = 50;
	//}}AFX_DATA_INIT
}

CSet0Dlg::CSet0Dlg(HANDLE com, CWnd* pParent /*=NULL*/)
	: CDialog(CSet0Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSet0Dlg)
	m_steps = 0;
	//}}AFX_DATA_INIT
	m_com = com;
	if (!EscapeCommFunction(m_com, CLRDTR)) {
		MessageBox("set direction error!");
		return;
	}
}


void CSet0Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSet0Dlg)
	DDX_Text(pDX, IDC_EDIT1, m_steps);
	DDV_MinMaxInt(pDX, m_steps, 0, 1000);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CSet0Dlg, CDialog)
	//{{AFX_MSG_MAP(CSet0Dlg)
	ON_BN_CLICKED(IDC_BUTTON1, OnSteps)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSet0Dlg message handlers

void CSet0Dlg::OnSteps() 
{
	// TODO: Add your control notification handler code here
	if (!UpdateData(TRUE))
		return;
	char *buf = new char[1024];
	std::fill_n(buf, 1024, 0x0F);
	unsigned long wl = 0;
	if (!WriteFile(m_com, (LPCVOID)buf, m_steps, &wl, NULL)) {
		MessageBox("step error!");
		return;
	}
	CString tmp;
	tmp.Format("done, go %d steps.", wl);
	MessageBox(tmp);
}