// The TypeLibrary is used to resolve any typedefs
public static String TYPEDESCToString(TypeLibrary typeLib,
UCOMITypeInfo typeInfo,
TYPEDESC typeDesc,
bool comType)
{
String ret =
TYPEDESCToStringInt(typeLib, typeInfo,
typeDesc, comType, 0);
return ret;
}
public static String TYPEDESCToStringInt(TypeLibrary typeLib,
UCOMITypeInfo typeInfo,
TYPEDESC typeDesc,
bool comType,
int level)
{
String ret;
try
{
if ((VarEnum)typeDesc.vt == VarEnum.VT_PTR ||
(VarEnum)(typeDesc.vt & ActiveX.VT_TYPEMASK) ==
VarEnum.VT_SAFEARRAY)
{
TYPEDESC pTypeDesc =
(TYPEDESC)Marshal.PtrToStructure(typeDesc.lpValue,
typeof(TYPEDESC));
ret = TYPEDESCToStringInt(typeLib,
typeInfo, pTypeDesc,
comType, level + 1);
if ((VarEnum)(typeDesc.vt & ActiveX.VT_TYPEMASK) ==
VarEnum.VT_SAFEARRAY)
{
// FIXME - what about the non-comType
return "SAFEARRAY(" + ret + ")";
}
if (comType)
{
ret += "*";
}
else
{
// void* become IntPtr
if (ret.Equals("void"))
ret = "System.IntPtr";
else
{
// The first pointer is not a ref, its only
// a ref if there are two
// FIXME - what if there are more?
if (level == 1)
ret = "ref " + ret;
}
}
return ret;
}
if ((VarEnum)(typeDesc.vt & ActiveX.VT_TYPEMASK) ==
VarEnum.VT_CARRAY)
{
// typeDesc.lpValue in this case is really the laValue
// (since TYPEDESC is a contains a union of pointers)
ARRAYDESC pArrayDesc =
(ARRAYDESC)Marshal.PtrToStructure(typeDesc.lpValue,
typeof(ARRAYDESC));
ret = TYPEDESCToStringInt(typeLib, typeInfo,
pArrayDesc.tdescElem,
comType,
level + 1);
// Just show the number of diminsions, don't worry about
// showing the size of each since we don't want to
// get into marshalling the variable length ARRAYDESC
// structure
for (int i = 0; i < pArrayDesc.cDims; i++)
ret += "[]";
return ret;
}
if ((VarEnum)typeDesc.vt == VarEnum.VT_USERDEFINED)
{
UCOMITypeInfo uTypeInfo = null;
// FIXME - sometimes this chokes and hangs due to a bad
// handle value here, need to do something to prevent this
int href = typeDesc.lpValue.ToInt32();
typeInfo.GetRefTypeInfo(href, out uTypeInfo);
if (uTypeInfo != null)
{
String docName;
String docString;
int helpContext;
String helpFile;
uTypeInfo.GetDocumentation(-1, out docName,
out docString,
out helpContext,
out helpFile);
// Fix up misc references
if (docName.Equals("GUID"))
docName = "System.Guid";
// Present the user names for the types in COM
// mode, but for the CLR types, get the real
// underlying names
if (!comType)
return typeLib.ResolveTypeDef(docName, comType);
return docName;
}
else
{
TraceUtil.WriteLineWarning(null, "USER: "******" 0x" + href.ToString("X")
+ " ***UNKNOWN***");
return "(userDef unknown)";
}
}
return GetTypeStr(typeDesc.vt, comType);
}
catch (Exception ex)
{
TraceUtil.WriteLineWarning
(null, "ActiveX type conversion error: " + ex);
return "(error)";
}
}