orderentryclientdlg.cpp

Visual_C++[1].NET_Bible1 Visual_C++宝典书中的全部源码

// OrderEntryClientDlg.cpp : implementation file
//

#include "stdafx.h"
#include "OrderEntryClient.h"
#include "OrderEntryClientDlg.h"

#include "..\OrderEntry\OrderEntry.h"
#include "..\OrderEntry\OrderEntry_i.c"
#include <comdef.h>
ICreateOrder* m_pCreateOrder;

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

// Implementation
protected:
	DECLARE_MESSAGE_MAP()
public:
  afx_msg void OnBnClickedOk();
};

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

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

void CAboutDlg::OnBnClickedOk()
{
  CWaitCursor wait;

  CString strUrl = "http://www.thecodechannel.com/redirect.asp?u=/&s=vcnb";
  if (32 >= (int)ShellExecute(NULL, "open", strUrl, NULL, NULL, SW_SHOWNORMAL))
  {
    AfxMessageBox("::ShellExecute failed to open this link!");
  }
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
  ON_BN_CLICKED(IDOK, OnBnClickedOk)
END_MESSAGE_MAP()


// COrderEntryClientDlg dialog



COrderEntryClientDlg::COrderEntryClientDlg(CWnd* pParent /*=NULL*/)
	: CDialog(COrderEntryClientDlg::IDD, pParent)
  , m_strSku(_T(""))
  , m_iQuantity(0)
{
  m_pCreateOrder = NULL;
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void COrderEntryClientDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
  DDX_Text(pDX, IDC_EDIT1, m_strSku);
  DDX_Text(pDX, IDC_EDIT2, m_iQuantity);
}

BEGIN_MESSAGE_MAP(COrderEntryClientDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
  ON_BN_CLICKED(IDC_ADDLINEITEM, OnBnClickedAddLineItem)
  ON_BN_CLICKED(IDC_PROCESSORDER, OnBnClickedProcessOrder)
  ON_BN_CLICKED(ID_APP_ABOUT, OnBnClickedAbout)
  ON_WM_DESTROY()
END_MESSAGE_MAP()


// COrderEntryClientDlg message handlers

BOOL COrderEntryClientDlg::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

  HRESULT hr = ::CoInitialize(NULL);
  if (SUCCEEDED(hr))
  {
    hr = ::CoGetObject(L"queue:/new:OrderEntry.CreateOrder.1",
      NULL,
      IID_ICreateOrder,
      (void**)&m_pCreateOrder);
    if (FAILED(hr))
    {
      DisplayHRESULTError(hr);
      m_pCreateOrder = NULL;
    }
  }
  else
  {
    AfxMessageBox("COM failed to initialize");
  }
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<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 function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR COrderEntryClientDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}

void COrderEntryClientDlg::OnBnClickedAbout()
{
  CAboutDlg().DoModal();
}

void COrderEntryClientDlg::OnBnClickedAddLineItem()
{
  ASSERT(m_pCreateOrder);
  if (m_pCreateOrder)
  {
    if (UpdateData(TRUE))
    {
      m_strSku.TrimLeft();
      if (0 < m_strSku.GetLength())
      {
        if (0 < m_iQuantity)
        {
          BSTR bstrSku;
          bstrSku = m_strSku.AllocSysString();

          HRESULT hr = m_pCreateOrder->AddLineItem(&bstrSku, m_iQuantity);
          if (SUCCEEDED(hr))
            AfxMessageBox("Your add line item request has been queued");
          else
            DisplayHRESULTError(hr);
        }
        else
        {
          AfxMessageBox("You must enter a quantity greater than 0");
        }
      }
      else
      {
        AfxMessageBox("Please enter a string to send to the queued component.");
      }
    } // UpdateData will display its own error
  }
  else
  {
    AfxMessageBox("The ICreateOrder interface was never successfully obtained.");
  }
}

void COrderEntryClientDlg::OnBnClickedProcessOrder()
{
  ASSERT(m_pCreateOrder);
  if (m_pCreateOrder)
  {
    HRESULT hr = m_pCreateOrder->ProcessOrder();
    if (SUCCEEDED(hr))
      AfxMessageBox("Your process order request has been queued");
    else
      DisplayHRESULTError(hr);
  }
  else
  {
    AfxMessageBox("The ICreateOrder interface was never successfully obtained.");
  }
}

void COrderEntryClientDlg::DisplayHRESULTError(HRESULT hr)
{
  if (MK_E_CONNECTMANUALLY == hr)
  {
    AfxMessageBox("Operation requires manual intervention");
  }
  else if (COMQC_E_APPLICATION_NOT_QUEUED == hr)
  {
    AfxMessageBox("Only COM+ Applications marked \"queued\" can be invoked using the \"queue\" moniker");
  }
  else if (MK_E_EXCEEDEDDEADLINE == hr)
  {
    AfxMessageBox("Object creating timed out");
  }
  else if (MK_E_NEEDGENERIC == hr)
  {
    AfxMessageBox("Moniker needs to be generic");
  }
  else if (MK_E_UNAVAILABLE == hr)
  {
    AfxMessageBox("The request operation is unavailable");
  }
  else if (MK_E_SYNTAX == hr)
  {
    AfxMessageBox("The display name param is invalid");
  }
  else if (MK_E_NOOBJECT == hr)
  {
    AfxMessageBox("Object could not be found");
  }
  else if (MK_E_INTERMEDIATEINTERFACENOTSUPPORTED == hr)
  {
    AfxMessageBox("Object does not support required interface");
  }
  else if (ERROR_NOT_AUTHENTICATED == hr)
  {
    AfxMessageBox("auth");
  }
  else
  {
    AfxMessageBox("Unknown error occurred");
  }
}

void COrderEntryClientDlg::OnDestroy()
{
  CDialog::OnDestroy();

  if (NULL != m_pCreateOrder) 
    m_pCreateOrder->Release();

  ::CoUninitialize();
}