private bool IsCreatableCoClass(TYPEATTR typeAttr) {
return typeAttr.typekind == TYPEKIND.TKIND_COCLASS
&& typeAttr.wTypeFlags == TYPEFLAGS.TYPEFLAG_FCANCREATE;
}
private void FillListBoxes(UCOMITypeLib itfTypeLib)
{
// Clear out current contents.
lstBoxCoclasses.Items.Clear();
lstBoxInterfaces.Items.Clear();
lstBoxEnums.Items.Clear();
// Get # of COM types in the library.
int typeCount = itfTypeLib.GetTypeInfoCount();
lblNumbOfTypes.Text = "Number of COM Types in file: " + typeCount.ToString();
// Switch between COM type.
// Dump out the types.
for(int typeIndex = 0; typeIndex < typeCount; typeIndex++)
{
string typeInfoString;
UCOMITypeInfo pInfo;
// Get TYPEATTR structure set up.
TYPEATTR typeAtt = new TYPEATTR();
Type TYPEATTRType = typeAtt.GetType();
int structSize = Marshal.SizeOf(TYPEATTRType);
IntPtr ptr = IntPtr.Zero;
ptr = Marshal.AllocHGlobal(structSize);
// Get next type info.
itfTypeLib.GetTypeInfo(typeIndex, out pInfo);
pInfo.GetTypeAttr(out ptr);
typeAtt = (TYPEATTR) Marshal.PtrToStructure(ptr, TYPEATTRType);
// Based on the kind of COM type, print out some information.
string typeName, helpFile, docString;
int helpID;
switch(typeAtt.typekind)
{
case TYPEKIND.TKIND_COCLASS: // type is a coclass.
pInfo.GetDocumentation(-1, out typeName, out docString,
out helpID, out helpFile);
typeInfoString = "Name: " + typeName + "\tCLSID: {" + typeAtt.guid.ToString() + "}";
lstBoxCoclasses.Items.Add(typeInfoString);
break;
case TYPEKIND.TKIND_INTERFACE: // type is a interface.
case TYPEKIND.TKIND_DISPATCH:
pInfo.GetDocumentation(-1, out typeName, out docString,
out helpID, out helpFile);
typeInfoString = "Name: " + typeName + "\tIID: {" + typeAtt.guid.ToString() + "}";
lstBoxInterfaces.Items.Add(typeInfoString);
break;
case TYPEKIND.TKIND_ENUM: // type is a enum.
pInfo.GetDocumentation(-1, out typeName, out docString,
out helpID, out helpFile);
typeInfoString = "Name: " + typeName;
lstBoxEnums.Items.Add(typeInfoString);
break;
}
Marshal.DestroyStructure(ptr, typeAtt.GetType());
}
}
private bool IsIDispatchInterface(TYPEATTR typeAttr) {
return typeAttr.typekind == TYPEKIND.TKIND_DISPATCH;
}