图书管理系统 是用VC++6.0和SQL2000开发

				// DlgQueryM.cpp : implementation file
				//
				
				#include "stdafx.h"
				#include "bbb.h"
				#include "DlgQueryM.h"
				
				#ifdef _DEBUG
				#define new DEBUG_NEW
				#undef THIS_FILE
				static char THIS_FILE[] = __FILE__;
				#endif
				
				/////////////////////////////////////////////////////////////////////////////
				// CDlgQueryM dialog
				extern CBbbApp theApp;
				
				CDlgQueryM::CDlgQueryM(CWnd* pParent /*=NULL*/)
					: CDialog(CDlgQueryM::IDD, pParent)
				{
					//{{AFX_DATA_INIT(CDlgQueryM)
						// NOTE: the ClassWizard will add member initialization here
					//}}AFX_DATA_INIT
					nSelect = -1;
				}
				
				CDlgQueryM::CDlgQueryM(int iSelect, CWnd* pParent /*=NULL*/)
					: CDialog(CDlgQueryM::IDD, pParent)
				{
					nSelect = iSelect;
				}
				
				
				void CDlgQueryM::DoDataExchange(CDataExchange* pDX)
				{
					CDialog::DoDataExchange(pDX);
					//{{AFX_DATA_MAP(CDlgQueryM)
					DDX_Control(pDX, IDC_TAB1, m_tab);
					//}}AFX_DATA_MAP
				}
				
				
				BEGIN_MESSAGE_MAP(CDlgQueryM, CDialog)
					//{{AFX_MSG_MAP(CDlgQueryM)
					ON_BN_CLICKED(IDC_BUTQUERY, OnButquery)
					ON_BN_CLICKED(IDC_BUTCANCEL, OnButcancel)
					ON_BN_CLICKED(IDC_BUTPRINT, OnButprint)
					ON_BN_CLICKED(IDC_BUTEXIT, OnButexit)
					//}}AFX_MSG_MAP
				END_MESSAGE_MAP()
				
				/////////////////////////////////////////////////////////////////////////////
				// CDlgQueryM message handlers
				
				BOOL CDlgQueryM::OnInitDialog() 
				{
					CDialog::OnInitDialog();
					
					// TODO: Add extra initialization here
					m_tab.AddPage("入库查询",     &m_dlg1, IDD_INPUT_QUERY3);
					m_tab.AddPage("入库退货查询", &m_dlg2, IDD_INPUT_BACK_QUERY3);
					m_tab.AddPage("销售查询",     &m_dlg3, IDD_SALE_QUERY3);
					m_tab.AddPage("销售退货查询", &m_dlg4, IDD_SALE_BACK_QUERY3);
					if (nSelect >= 0)
					{
						m_tab.Show(nSelect);
					}
					else
					{
						m_tab.Show();
					}	
					return TRUE;  
				}
				
				void CDlgQueryM::OnCancel()
				{
					if(theApp.m_mainfram != NULL)
						theApp.m_mainfram->DestroyWindow();	
					m_tab.DestroyWindow();
					CDialog::OnCancel();
				}
				
				void CDlgQueryM::OnButquery() 
				{
					// TODO: Add your control notification handler code here
					int cur = m_tab.GetCurSel();
					switch (cur)
					{
					case 0:
						{
							m_dlg1.Query();
							break;
						}
					case 1:
						{
							m_dlg2.Query();
							break;
						}
					case 2:
						{
							
							m_dlg3.Query();
							break;
						}
					case 3:
						{
							
							m_dlg4.Query();
							break;
						}
					}
				}
				
				void CDlgQueryM::OnButcancel() 
				{
					// TODO: Add your control notification handler code here
					int cur = m_tab.GetCurSel();
					switch (cur)
					{
					case 0:
						{
							m_dlg1.CancelQuery();
							break;
						}
					case 1:
						{
							m_dlg2.CancelQuery();
							break;
						}
					case 2:
						{
							
							m_dlg3.CancelQuery();
							break;
						}
					case 4:
						{
							
							m_dlg4.CancelQuery();
							break;
						}	
					}
				}
				
				void CDlgQueryM::OnButprint() 
				{
					// TODO: Add your control notification handler code here
					int cur = m_tab.GetCurSel();
					switch (cur)
					{
					case 0:
						{
							m_dlg1.Print();
							break;
						}
					case 1:
						{
							m_dlg2.Print();
							break;
						}
					case 2:
						{
							
							m_dlg3.Print();
							break;
						}
					case 3:
						{
							
							m_dlg4.Print();
							break;
						}
					}
				}
				
				void CDlgQueryM::OnButexit() 
				{
					// TODO: Add your control notification handler code here
					CDlgQueryM::OnCancel();
				}