// Author: Julian Smart
// Modified by:
// Created: 11/6/98
-// RCS-ID: $Id$
// Copyright: (c) 1998, Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#if wxUSE_OLE_AUTOMATION
+#include <wx/vector.h>
+
// Report an OLE error when calling the specified method to the user via wxLog.
static void
ShowException(const wxString& member,
wxAutomationObject::wxAutomationObject(WXIDISPATCH* dispatchPtr)
{
m_dispatchPtr = dispatchPtr;
+ m_lcid = LOCALE_SYSTEM_DEFAULT;
}
wxAutomationObject::~wxAutomationObject()
}
}
+namespace
+{
+
+// A simple helper that ensures that VARIANT is destroyed on scope exit.
+struct wxOleVariantArg : VARIANTARG
+{
+ wxOleVariantArg() { VariantInit(this); }
+ ~wxOleVariantArg() { VariantClear(this); }
+};
+
+} // anonymous namespace
+
+
#define INVOKEARG(i) (args ? args[i] : *(ptrArgs[i]))
// For Put/Get, no named arguments are allowed.
+// WARNING: if args contain IDispatches, their reference count will be decreased
+// by one after Invoke() returns!
bool wxAutomationObject::Invoke(const wxString& member, int action,
wxVariant& retValue, int noArgs, wxVariant args[], const wxVariant* ptrArgs[]) const
{
return obj.Invoke(rest, action, retValue, noArgs, args, ptrArgs);
}
- VARIANTARG vReturn;
- VariantInit(& vReturn);
-
- VARIANTARG* vReturnPtr = & vReturn;
+ wxOleVariantArg vReturn;
+ wxOleVariantArg* vReturnPtr = & vReturn;
// Find number of names args
int namedArgCount = 0;
int i;
for (i = 0; i < noArgs; i++)
+ {
if ( !INVOKEARG(i).GetName().empty() )
{
namedArgCount ++;
}
+ }
int namedArgStringCount = namedArgCount + 1;
- BSTR* argNames = new BSTR[namedArgStringCount];
- argNames[0] = wxConvertStringToOle(member);
+ wxVector<wxBasicString> argNames(namedArgStringCount, wxString());
+ argNames[0] = member;
// Note that arguments are specified in reverse order
// (all totally logical; hey, we're dealing with OLE here.)
{
if ( !INVOKEARG(i).GetName().empty() )
{
- argNames[(namedArgCount-j)] = wxConvertStringToOle(INVOKEARG(i).GetName());
+ argNames[(namedArgCount-j)] = INVOKEARG(i).GetName();
j ++;
}
}
// + 1 for the member name, + 1 again in case we're a 'put'
- DISPID* dispIds = new DISPID[namedArgCount + 2];
+ wxVector<DISPID> dispIds(namedArgCount + 2);
HRESULT hr;
DISPPARAMS dispparams;
// Get the IDs for the member and its arguments. GetIDsOfNames expects the
// member name as the first name, followed by argument names (if any).
- hr = ((IDispatch*)m_dispatchPtr)->GetIDsOfNames(IID_NULL, argNames,
- 1 + namedArgCount, LOCALE_SYSTEM_DEFAULT, dispIds);
+ hr = ((IDispatch*)m_dispatchPtr)->GetIDsOfNames(IID_NULL,
+ // We rely on the fact that wxBasicString is
+ // just BSTR with some methods here.
+ reinterpret_cast<BSTR *>(&argNames[0]),
+ 1 + namedArgCount, m_lcid, &dispIds[0]);
if (FAILED(hr))
{
ShowException(member, hr);
- delete[] argNames;
- delete[] dispIds;
return false;
}
}
// Convert the wxVariants to VARIANTARGs
- VARIANTARG* oleArgs = new VARIANTARG[noArgs];
+ wxVector<wxOleVariantArg> oleArgs(noArgs);
for (i = 0; i < noArgs; i++)
{
// Again, reverse args
if (!wxConvertVariantToOle(INVOKEARG((noArgs-1) - i), oleArgs[i]))
- {
- delete[] argNames;
- delete[] dispIds;
- delete[] oleArgs;
return false;
- }
}
- dispparams.rgdispidNamedArgs = dispIds + 1;
- dispparams.rgvarg = oleArgs;
+ dispparams.rgdispidNamedArgs = &dispIds[0] + 1;
+ dispparams.rgvarg = oleArgs.empty() ? NULL : &oleArgs[0];
dispparams.cArgs = noArgs;
dispparams.cNamedArgs = namedArgCount;
EXCEPINFO excep;
wxZeroMemory(excep);
- hr = ((IDispatch*)m_dispatchPtr)->Invoke(dispIds[0], IID_NULL, LOCALE_SYSTEM_DEFAULT,
+ hr = ((IDispatch*)m_dispatchPtr)->Invoke(dispIds[0], IID_NULL, m_lcid,
(WORD)action, &dispparams, vReturnPtr, &excep, &uiArgErr);
- for (i = 0; i < namedArgStringCount; i++)
- {
- SysFreeString(argNames[i]);
- }
- delete[] argNames;
- delete[] dispIds;
-
- for (i = 0; i < noArgs; i++)
- VariantClear(& oleArgs[i]) ;
- delete[] oleArgs;
-
if (FAILED(hr))
{
// display the exception information if appropriate:
SysFreeString(excep.bstrDescription);
SysFreeString(excep.bstrHelpFile);
- if (vReturnPtr)
- VariantClear(vReturnPtr);
return false;
}
else
if (vReturnPtr)
{
// Convert result to wxVariant form
- wxConvertOleToVariant(vReturn, retValue);
+ if (!wxConvertOleToVariant(vReturn, retValue))
+ return false;
// Mustn't release the dispatch pointer
if (vReturn.vt == VT_DISPATCH)
{
vReturn.pdispVal = NULL;
}
- VariantClear(& vReturn);
+ // Mustn't free the SAFEARRAY if it is contained in the retValue
+ if ((vReturn.vt & VT_ARRAY) &&
+ retValue.GetType() == wxS("safearray"))
+ {
+ vReturn.parray = NULL;
+ }
}
}
return true;
if (dispatch)
{
obj.SetDispatchPtr(dispatch);
+ obj.SetLCID(GetLCID());
return true;
}
else
if (dispatch)
{
obj.SetDispatchPtr(dispatch);
+ obj.SetLCID(GetLCID());
return true;
}
else
}
else
{
- wxLogSysError(hr,
- _("Cannot get an active instance of \"%s\""), progId);
+ // Log an error except if we're supposed to fail silently when the
+ // error is that no current instance exists.
+ if ( hr != MK_E_UNAVAILABLE ||
+ !(flags & wxAutomationInstance_SilentIfNone) )
+ {
+ wxLogSysError(hr,
+ _("Cannot get an active instance of \"%s\""),
+ progId);
+ }
}
return false;
return m_dispatchPtr != NULL;
}
+LCID wxAutomationObject::GetLCID() const
+{
+ return m_lcid;
+}
+
+void wxAutomationObject::SetLCID(LCID lcid)
+{
+ m_lcid = lcid;
+}
+
static void
ShowException(const wxString& member,
HRESULT hr,
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