mmtimermotorcontroldlg.cpp

本程序使用WinIO库操作并口

// MMtimerMotorControlDlg.cpp : implementation file
//

#include "stdafx.h"
#include "MMtimerMotorControl.h"
#include "MMtimerMotorControlDlg.h"
#include "WinIo.h"
#include <MMSystem.h>
#pragma comment(lib, "winmm.lib")

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

struct MMProcInput
{
	int nFlag;
	UINT nLeft;
	DWORD HighPulse;
	DWORD LowPulse;
};
MMProcInput nn;
UINT wAccuracy;
UINT Timer_ID_Motor;
class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMMtimerMotorControlDlg dialog

CMMtimerMotorControlDlg::CMMtimerMotorControlDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMMtimerMotorControlDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMMtimerMotorControlDlg)
		// 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 CMMtimerMotorControlDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMMtimerMotorControlDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMMtimerMotorControlDlg, CDialog)
	//{{AFX_MSG_MAP(CMMtimerMotorControlDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMMtimerMotorControlDlg message handlers

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

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 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
	
	// TODO: Add extra initialization here
	if(!InitializeMotorControl()) return FALSE;
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CMMtimerMotorControlDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CMMtimerMotorControlDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CMMtimerMotorControlDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

bool CMMtimerMotorControlDlg::InitializeMotorControl()
{
	if(!InitializeWinIo()) return FALSE; 
	return TRUE;
}

void CALLBACK CatchMMTimerMotor(UINT wTimerID, UINT msg,DWORD dwUser,
												DWORD dw1, DWORD dw2)
{
    MMProcInput * nMotor=(MMProcInput*) dwUser;

	if(nMotor[0].nLeft-nMotor[0].nFlag<24) 
	{
		nMotor[0].nFlag--;
		return ;
	}
	nMotor[0].nFlag=-30;
	if(nMotor[0].nLeft%2==0) 
	{
     	SetPortVal(0x0378,nMotor[0].LowPulse,1);
		TRACE("\nnMotor[0].left=%d,Low Pulse",nMotor[0].nLeft);
	}
	else
	{
		SetPortVal(0x0378,nMotor[0].HighPulse,1);
		TRACE("\nnMotor[0].left=%d,High Pulse",nMotor[0].nLeft);
	}

	nMotor[0].nLeft --;
	if(nMotor[0].nLeft<=0)
	{
		timeKillEvent(wTimerID);
		wTimerID = 0;
	}
}

bool MotorControl(double rotAngle=360,double speedStep=18,bool direction=0)
{
	TIMECAPS tc; //定时器分辨率的结构
	if(timeGetDevCaps(&tc,sizeof(TIMECAPS))!= TIMERR_NOERROR) return FALSE;

	wAccuracy=min(max(tc.wPeriodMin,wAccuracy),tc.wPeriodMax);
	if(TIMERR_NOCANDO==timeBeginPeriod(wAccuracy))	return FALSE;
    UINT MOTOR_PERIOD=UINT(rotAngle/speedStep/nn.nFlag*1000);

    nn.nLeft=UINT (rotAngle/0.3*2);
	nn.nFlag=nn.nLeft;
	if(direction)
	{
		nn.LowPulse=0x0C;
     	nn.HighPulse=0x0D;
	}

	Timer_ID_Motor=timeSetEvent(MOTOR_PERIOD,wAccuracy,(LPTIMECALLBACK)CatchMMTimerMotor,
		                       (DWORD) &nn,TIME_PERIODIC); 


	if(HIGH_PRIORITY_CLASS!=GetPriorityClass(GetCurrentProcess()))
            SetPriorityClass(GetCurrentProcess(),HIGH_PRIORITY_CLASS);
	if(THREAD_PRIORITY_TIME_CRITICAL!=GetThreadPriority(GetCurrentThread()))
            SetThreadPriority(GetCurrentThread(),THREAD_PRIORITY_TIME_CRITICAL);
	return TRUE;

}

bool DestroyMotorControl()
{
	ShutdownWinIo();
	if(TIMERR_NOERROR==timeEndPeriod(wAccuracy)) return TRUE;
	return FALSE;
}

BOOL CMMtimerMotorControlDlg::DestroyWindow() 
{
	// TODO: Add your specialized code here and/or call the base class
	if(!DestroyMotorControl()) return FALSE;
	return CDialog::DestroyWindow();
}

void CMMtimerMotorControlDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	GetDlgItem(IDC_BUTTON2)->SetFocus();
	CWnd* cWnd = GetDlgItem(IDC_BUTTON1);
    cWnd->EnableWindow(FALSE);
	MotorControl(360,18,1);
//	Sleep(5000);
    cWnd->EnableWindow(TRUE);
}