www.pudn.com > daothreadfix.zip > MainFrm.cpp

// MainFrm.cpp : implementation of the CMainFrame class 
// 
 
 
#define MAINFRAME_CPP 
 
 
#include "stdafx.h" 
 
 
#include "multidaorecordset.h" 
 
#include "daothreadset.h" 
 
#include "daothreaddoc.h" 
 
#include "DAOTHREAD.h" 
 
#include "MainFrm.h" 
 
#include "DAOTHREADView.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CMainFrame 
 
IMPLEMENT_DYNAMIC(CMainFrame, CMDIFrameWnd) 
 
BEGIN_MESSAGE_MAP(CMainFrame, CMDIFrameWnd) 
	//{{AFX_MSG_MAP(CMainFrame) 
		// NOTE - the ClassWizard will add and remove mapping macros here. 
		//    DO NOT EDIT what you see in these blocks of generated code ! 
	ON_WM_CREATE() 
	//}}AFX_MSG_MAP 
	ON_REGISTERED_MESSAGE(WM_MULTIDAOMESSAGE, OnMultiDaoMessage) 
END_MESSAGE_MAP() 
 
static UINT indicators[] = 
{ 
	ID_SEPARATOR,           // status line indicator 
	ID_INDICATOR_CAPS, 
	ID_INDICATOR_NUM, 
	ID_INDICATOR_SCRL, 
}; 
 
///////////////////////////////////////////////////////////////////////////// 
// CMainFrame construction/destruction 
 
CMainFrame::CMainFrame() 
{ 
	// TODO: add member initialization code here 
	 
} 
 
CMainFrame::~CMainFrame() 
{ 
} 
 
int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{ 
	if (CMDIFrameWnd::OnCreate(lpCreateStruct) == -1) 
		return -1; 
	 
	if (!m_wndToolBar.Create(this) || 
		!m_wndToolBar.LoadToolBar(IDR_MAINFRAME)) 
	{ 
		TRACE0("Failed to create toolbar\n"); 
		return -1;      // fail to create 
	} 
 
	if (!m_wndStatusBar.Create(this) || 
		!m_wndStatusBar.SetIndicators(indicators, 
		  sizeof(indicators)/sizeof(UINT))) 
	{ 
		TRACE0("Failed to create status bar\n"); 
		return -1;      // fail to create 
	} 
 
	// TODO: Remove this if you don't want tool tips or a resizeable toolbar 
	m_wndToolBar.SetBarStyle(m_wndToolBar.GetBarStyle() | 
		CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC); 
 
	// TODO: Delete these three lines if you don't want the toolbar to 
	//  be dockable 
	m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY); 
	EnableDocking(CBRS_ALIGN_ANY); 
	DockControlBar(&m_wndToolBar); 
 
	return 0; 
} 
 
BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs) 
{ 
	// TODO: Modify the Window class or styles here by modifying 
	//  the CREATESTRUCT cs 
 
	return CMDIFrameWnd::PreCreateWindow(cs); 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CMainFrame diagnostics 
 
#ifdef _DEBUG 
void CMainFrame::AssertValid() const 
{ 
	CMDIFrameWnd::AssertValid(); 
} 
 
void CMainFrame::Dump(CDumpContext& dc) const 
{ 
	CMDIFrameWnd::Dump(dc); 
} 
 
#endif //_DEBUG 
 
///////////////////////////////////////////////////////////////////////////// 
// CMainFrame message handlers 
 
 
//jtm 
//perform DAO functions in gui thread... 
LONG CMainFrame::OnMultiDaoMessage( UINT uParam, LONG lParam) 
{ 
	//jtm 
	//based on switch, perform operation... 
	CMultiDaoRecordSet *pSet = (CMultiDaoRecordSet *)lParam; 
	LONG lRet = 0; 
 
	CString cRet = ""; 
	COleVariant cVar; 
 
	try 
	{			 
		//jtm-------debug-------------------------------------- 
		CString cTraceMessage = cDAOMessageArray[uParam]; 
		cTraceMessage += "\n"; 
		TRACE(cTraceMessage); 
		//jtm-------debug-------------------------------------- 
		 
		switch(uParam) 
		{ 
			case MultiDaoOpen: 
				pSet->Open(); 
				break; 
			case MultiDaoClose: 
				pSet->Close(); 
				break; 
			case MultiDaoIsOpen: 
				lRet = (LONG)pSet->IsOpen(); 
				break; 
			case MultiDaoIsBOF: 
				lRet = (LONG)pSet->IsBOF(); 
				break; 
			case MultiDaoIsEOF: 
				lRet = (LONG)pSet->IsEOF(); 
				break; 
			case MultiDaoIsDeleted: 
				lRet = (LONG)pSet->IsDeleted(); 
				break; 
			case MultiDaoIsFieldDirty: 
				lRet = (LONG)pSet->IsFieldDirty(pSet->pParam1); 
				break; 
			case MultiDaoIsFieldNull: 
				lRet = (LONG)pSet->IsFieldNull(pSet->pParam1); 
				break; 
			case MultiDaoIsFieldNullable: 
				lRet = (LONG)pSet->IsFieldNullable(pSet->pParam1); 
				break; 
			case MultiDaoGetName: 
				cRet = pSet->GetName(); 
				lRet = (LONG)&cRet; 
				break; 
			case MultiDaoGetType: 
				lRet = (LONG)pSet->GetType(); 
				break; 
			case MultiDaoGetEditMode: 
				lRet = (LONG)pSet->GetEditMode(); 
				break; 
			case MultiDaoGetLastModifiedBookmark: 
				cVar = pSet->GetLastModifiedBookmark(); 
				lRet = (LONG)&cVar; 
				break; 
			case MultiDaoGetRecordCount: 
				lRet = (LONG)pSet->GetRecordCount(); 
				break; 
			case MultiDaoMoveNext: 
				pSet->MoveNext(); 
				break; 
			case MultiDaoMovePrev: 
				pSet->MovePrev(); 
				break; 
			case MultiDaoMoveFirst: 
				pSet->MoveFirst(); 
				break; 
			case MultiDaoMoveLast: 
				pSet->MoveLast(); 
				break; 
			case MultiDaoMove: 
				pSet->Move(*(LONG *)pSet->pParam1); 
				break; 
			case MultiDaoFindNext: 
				lRet = (LONG)pSet->FindNext(*(LPCTSTR *)pSet->pParam1); 
				break; 
			case MultiDaoFindPrev: 
				lRet = (LONG)pSet->FindPrev(*(LPCTSTR*)pSet->pParam1); 
				break; 
			case MultiDaoFindFirst: 
				lRet = (LONG)pSet->FindFirst(*(LPCTSTR *)pSet->pParam1); 
				break; 
			case MultiDaoFindLast: 
				lRet = (LONG)pSet->FindLast(*(LPCTSTR *)pSet->pParam1); 
				break; 
			case MultiDaoFind: 
				lRet = (LONG)pSet->Find(*(LONG *)pSet->pParam1, *(LPCTSTR*)pSet->pParam2); 
				break; 
			case MultiDaoGetBookmark: 
				cVar = pSet->GetBookmark(); 
				lRet = (LONG)&cVar; 
				break; 
			case MultiDaoSetBookmark: 
				pSet->SetBookmark(*(COleVariant*)pSet->pParam1); 
				break; 
			case MultiDaoAddNew: 
				pSet->AddNew(); 
				break; 
			case MultiDaoEdit: 
				pSet->Edit(); 
				break; 
			case MultiDaoUpdate: 
				pSet->Update(); 
				break; 
			case MultiDaoDelete: 
				pSet->Delete(); 
				break; 
			case MultiDaoCancelUpdate: 
				pSet->CancelUpdate(); 
				break; 
			case MultiDaoRequery: 
				pSet->Requery(); 
				break; 
		} 
	} 
	catch (CDaoException *e) 
	{ 
		TRACE("Database Multithread Operation Failed%s\n",  
			e->m_pErrorInfo->m_strDescription); 
	} 
	return lRet; 
} 
 
 
BOOL CALLBACK EnumChildProc(HWND hWnd, LPARAM lParam ) 
{ 
	CMainFrame *pMain = (CMainFrame *)lParam; 
	 
	//if the child window has a view pointer, then... 
	CWnd *pWindow = pMain->FromHandlePermanent(hWnd); 
 
	if (pWindow) 
	{ 
		if (pWindow->IsKindOf(RUNTIME_CLASS( CDAOTHREADView ) ) ) 
		{ 
			((CDAOTHREADView *)pWindow)->m_bContinueThread = FALSE; 
			((CDAOTHREADView *)pWindow)->DestroyWindow(); 
		} 
	} 
 
	return TRUE; 
} 
 
 
BOOL CMainFrame::DestroyWindow()  
{ 
	//jtm 
	//check for any mdi windows. kill them first	 
	EnumChildWindows(GetSafeHwnd(), // handle to parent window  
		(WNDENUMPROC)EnumChildProc, // pointer to callback function  
		(LPARAM)this);  
	 
	return CMDIFrameWnd::DestroyWindow(); 
}