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Visual C++多线程DAO处理
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hread == AfxGetThread())
{
CDaoRecordset::Open(nOpenType, lpszSQL, nOptions);
}
else
{
pParam1 = (void *)&nOpenType;
pParam2 = (void *)lpszSQL;
pParam3 = (void *)&nOptions;
AfxGetMainWnd()->SendMessage(WM_MULTIDAOMESSAGE, MultiDaoOpen, (LPARAM)this);
}
}

void CMultiDaoRecordSet::Close()
{
CMYApp *pApp = ((CMYApp *)AfxGetApp());
if (pApp->pGUIThread == AfxGetThread())
{
CDaoRecordset::Close();
}
else
{
AfxGetMainWnd()->SendMessage(WM_MULTIDAOMESSAGE, MultiDaoClose, (LPARAM)this);
}
}

BOOL CMultiDaoRecordSet::IsOpen()
{
CMYApp *pApp = ((CMYApp *)AfxGetApp());
if (pApp->pGUIThread == AfxGetThread())
{
return CDaoRecordset::IsOpen();
}
else
{
return (BOOL)AfxGetMainWnd()->
SendMessage(WM_MULTIDAOMESSAGE, MultiDaoIsOpen, (LPARAM)this);
}
}

BOOL CMultiDaoRecordSet::IsBOF()
{
CMYApp *pApp = ((CMYApp *)AfxGetApp());
if (pApp->pGUIThread == AfxGetThread())
{
return CDaoRecordset::IsBOF();
}
else
{
return (BOOL)AfxGetMainWnd()->
SendMessage(WM_MULTIDAOMESSAGE, MultiDaoIsBOF, (LPARAM)this);
}
}

BOOL CMultiDaoRecordSet::IsEOF()
{
CMYApp *pApp = ((CMYApp *)AfxGetApp());
if (pApp->pGUIThread == AfxGetThread())
{
return CDaoRecordset::IsEOF();
}
else
{
return (BOOL)AfxGetMainWnd()->
SendMessage(WM_MULTIDAOMESSAGE, MultiDaoIsEOF, (LPARAM)this);
}
}

BOOL CMultiDaoRecordSet::IsDeleted()
{
CMYApp *pApp = ((CMYApp *)AfxGetApp());
if (pApp->pGUIThread == AfxGetThread())
{
return CDaoRecordset::IsDeleted();
}
else
{
return (BOOL)AfxGetMainWnd()->
SendMessage(WM_MULTIDAOMESSAGE, MultiDaoIsDeleted, (LPARAM)this);
}
}

BOOL CMultiDaoRecordSet::IsFieldDirty(void* pv)
{
CMYApp *pApp = ((CMYApp *)AfxGetApp());
if (pApp->pGUIThread == AfxGetThread())
{
return CDaoRecordset::IsFieldDirty(pv);
}
else
{
pParam1 = pv;
return (BOOL)AfxGetMainWnd()->
SendMessage(WM_MULTIDAOMESSAGE, MultiDaoIsFieldDirty, (LPARAM)this);
}
}

BOOL CMultiDaoRecordSet::IsFieldNull(void* pv)
{
CMYApp *pApp = ((CMYApp *)AfxGetApp());
if (pApp->pGUIThread == AfxGetThread())
{
return CDaoRecordset::IsFieldNull(pv);
}
else
{
pParam1 = pv;
return (BOOL)AfxGetMainWnd()->
SendMessage(WM_MULTIDAOMESSAGE, MultiDaoIsFieldNull, (LPARAM)this);
}
}

BOOL CMultiDaoRecordSet::IsFieldNullable(void* pv)
{
CMYApp *pApp = ((CMYApp *)AfxGetApp());
if (pApp->pGUIThread == AfxGetThread())
{
return CDaoRecordset::IsFieldNullable(pv);
}
else
{
pParam1 = pv;
return (BOOL)AfxGetMainWnd()->
SendMessage(WM_MULTIDAOMESSAGE, MultiDaoIsFieldNullable, (LPARAM)this);
}
}

CString CMultiDaoRecordSet::GetName()
{
CMYApp *pApp = ((CMYApp *)AfxGetApp());
if (pApp->pGUIThread == AfxGetThread())
{
return CDaoRecordset::GetName();
}
else
{
return (CString)*(CString *)AfxGetMainWnd()->
SendMessage(WM_MULTIDAOMESSAGE, MultiDaoGetName, (LPARAM)this);
}
}

short CMultiDaoRecordSet::GetType()
{
CMYApp *pApp = ((CMYApp *)AfxGetApp());
if (pApp->pGUIThread == AfxGetThread())
{
return CDaoRecordset::GetType();
}
else
{
return (short)AfxGetMainWnd()->
SendMessage(WM_MULTIDAOMESSAGE, Mul
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