void COleControl::InitStockPropMask()
{
const AFX_DISPMAP* pDispMap = GetDispatchMap();
const AFX_DISPMAP_ENTRY* pEntry;
ASSERT(pDispMap != NULL);
// If stock property mask is already initialized, we're outta here.
if (*pDispMap->lpStockPropMask != (DWORD)-1)
return;
AfxLockGlobals(CRIT_STOCKMASK);
if (*pDispMap->lpStockPropMask == (DWORD)-1)
{
const AFX_DISPMAP* pDispMapTop = pDispMap;
DWORD dwStockPropMask = 0;
#ifdef _AFXDLL
for (;;)
#else
while (pDispMap != NULL)
#endif
{
pEntry = pDispMap->lpEntries;
while (pEntry->nPropOffset != -1)
{
int nIndex = DISPID_BACKCOLOR - pEntry->lDispID;
DWORD dwFlag;
if (nIndex >= 0 && nIndex < _countof(_afxStockProps) &&
(dwFlag = _afxStockProps[nIndex]) != 0)
{
dwStockPropMask |= dwFlag;
}
++pEntry;
}
// check base class
#ifdef _AFXDLL
if (pDispMap->pfnGetBaseMap == NULL)
break;
pDispMap = (*pDispMap->pfnGetBaseMap)();
#else
pDispMap = pDispMap->pBaseMap;
#endif
}
*pDispMapTop->lpStockPropMask = dwStockPropMask;
}
AfxUnlockGlobals(CRIT_STOCKMASK);
}
// enable this object for OLE automation, called from derived class ctor
void CCmdTarget::EnableAutomation()
{
ASSERT(GetDispatchMap() != NULL); // must have DECLARE_DISPATCH_MAP
// construct an COleDispatchImpl instance just to get to the vtable
COleDispatchImpl dispatch;
// vtable pointer should be already set to same or NULL
ASSERT(m_xDispatch.m_vtbl == NULL||
*(DWORD*)&dispatch == m_xDispatch.m_vtbl);
// sizeof(COleDispatchImpl) should be just a DWORD (vtable pointer)
ASSERT(sizeof(m_xDispatch) == sizeof(COleDispatchImpl));
// copy the vtable (and other data) to make sure it is initialized
m_xDispatch.m_vtbl = *(DWORD*)&dispatch;
*(COleDispatchImpl*)&m_xDispatch = dispatch;
}
const AFX_DISPMAP_ENTRY* PASCAL CCmdTarget::GetDispEntry(MEMBERID memid)
{
const AFX_DISPMAP* pDerivMap = GetDispatchMap();
const AFX_DISPMAP* pDispMap;
const AFX_DISPMAP_ENTRY* pEntry;
if (memid == DISPID_VALUE)
{
// DISPID_VALUE is a special alias (look for special alias entry)
pDispMap = pDerivMap;
while (pDispMap != NULL)
{
// search for special entry with vt == VT_MFCVALUE
pEntry = pDispMap->lpEntries;
while (pEntry->nPropOffset != -1)
{
if (pEntry->vt == VT_MFCVALUE)
{
memid = pEntry->lDispID;
if (memid == DISPID_UNKNOWN)
{
// attempt to map alias name to member ID
memid = MemberIDFromName(pDerivMap, pEntry->lpszName);
if (memid == DISPID_UNKNOWN)
return NULL;
}
// break out and map the member ID to an entry
goto LookupDispID;
}
++pEntry;
}
#ifdef _AFXDLL
pDispMap = (*pDispMap->pfnGetBaseMap)();
#else
pDispMap = pDispMap->pBaseMap;
#endif
}
}
LookupDispID:
if ((long)memid > 0)
{
// find AFX_DISPMAP corresponding to HIWORD(memid)
UINT nTest = 0;
pDispMap = pDerivMap;
while (pDispMap != NULL && nTest < (UINT)HIWORD(memid))
{
#ifdef _AFXDLL
pDispMap = (*pDispMap->pfnGetBaseMap)();
#else
pDispMap = pDispMap->pBaseMap;
#endif
++nTest;
}
if (pDispMap != NULL)
{
UINT nEntryCount = GetEntryCount(pDispMap);
if ((UINT)LOWORD(memid) <= nEntryCount)
{
pEntry = pDispMap->lpEntries + LOWORD(memid)-1;
// must have automatic DISPID or same ID
// if not then look manually
if (pEntry->lDispID == DISPID_UNKNOWN ||
pEntry->lDispID == memid)
{
return pEntry;
}
}
}
}
// second pass, look for DISP_XXX_ID entries
pDispMap = pDerivMap;
while (pDispMap != NULL)
{
// find AFX_DISPMAP_ENTRY where (pEntry->lDispID == memid)
pEntry = pDispMap->lpEntries;
while (pEntry->nPropOffset != -1)
{
if (pEntry->lDispID == memid)
return pEntry;
++pEntry;
}
// check base class
#ifdef _AFXDLL
pDispMap = (*pDispMap->pfnGetBaseMap)();
#else
pDispMap = pDispMap->pBaseMap;
#endif
}
return NULL; // no matching entry
}
void COleControl::InitStockPropMask()
{
static const DWORD _dwStockFlags[] =
{
STOCKPROP_BACKCOLOR, // -501
0, // -502
0, // -503
STOCKPROP_BORDERSTYLE, // -504
0, // -505
0, // -506
0, // -507
0, // -508
0, // -509
0, // -510
0, // -511
STOCKPROP_FONT, // -512
STOCKPROP_FORECOLOR, // -513
STOCKPROP_ENABLED, // -514
0, // -515
0, // -516
STOCKPROP_TEXT, // -517
STOCKPROP_CAPTION, // -518
0, // -519
STOCKPROP_APPEARANCE, // -520
};
const AFX_DISPMAP* pDispMap = GetDispatchMap();
const AFX_DISPMAP_ENTRY* pEntry;
ASSERT(pDispMap != NULL);
// If stock property mask is already initialized, we're outta here.
if (*pDispMap->lpStockPropMask != (DWORD)-1)
return;
AfxLockGlobals(CRIT_STOCKMASK);
if (*pDispMap->lpStockPropMask == (DWORD)-1)
{
const AFX_DISPMAP* pDispMapTop = pDispMap;
DWORD dwStockPropMask = 0;
while (pDispMap != NULL)
{
pEntry = pDispMap->lpEntries;
while (pEntry->nPropOffset != -1)
{
int nIndex = DISPID_BACKCOLOR - pEntry->lDispID;
DWORD dwFlag;
if (nIndex >= 0 && nIndex < _countof(_dwStockFlags) &&
(dwFlag = _dwStockFlags[nIndex]) != 0)
{
dwStockPropMask |= dwFlag;
}
++pEntry;
}
// check base class
#ifdef _AFXDLL
pDispMap = (*pDispMap->pfnGetBaseMap)();
#else
pDispMap = pDispMap->pBaseMap;
#endif
}
*pDispMapTop->lpStockPropMask = dwStockPropMask;
}
AfxUnlockGlobals(CRIT_STOCKMASK);
}
