internal ComTypeEnumDesc(ComTypes.ITypeInfo typeInfo, ComTypeLibDesc typeLibDesc) :
base(typeInfo, ComType.Enum, typeLibDesc)
{
ComTypes.TYPEATTR typeAttr = ComRuntimeHelpers.GetTypeAttrForTypeInfo(typeInfo);
string[] memberNames = new string[typeAttr.cVars];
object[] memberValues = new object[typeAttr.cVars];
IntPtr p = IntPtr.Zero;
// For each enum member get name and value.
for (int i = 0; i < typeAttr.cVars; i++)
{
typeInfo.GetVarDesc(i, out p);
// Get the enum member value (as object).
ComTypes.VARDESC varDesc;
try {
varDesc = (ComTypes.VARDESC)Marshal.PtrToStructure(p, typeof(ComTypes.VARDESC));
if (varDesc.varkind == ComTypes.VARKIND.VAR_CONST)
{
memberValues[i] = Marshal.GetObjectForNativeVariant(varDesc.desc.lpvarValue);
}
} finally {
typeInfo.ReleaseVarDesc(p);
}
// Get the enum member name
memberNames[i] = ComRuntimeHelpers.GetNameOfMethod(typeInfo, varDesc.memid);
}
_memberNames = memberNames;
_memberValues = memberValues;
}
internal static IEnumerable <ComTypes.VARDESC> GetTypeVariables(ComTypes.ITypeInfo typeInfo, ComTypes.TYPEATTR typeAttr)
{
for (var iVar = 0; iVar < typeAttr.cVars; iVar++)
{
IntPtr pVarDesc;
typeInfo.GetVarDesc(iVar, out pVarDesc);
var varDesc = (ComTypes.VARDESC)Marshal.PtrToStructure(pVarDesc, typeof(ComTypes.VARDESC));
yield return(varDesc);
typeInfo.ReleaseVarDesc(pVarDesc);
}
}
public TypeInfoVariable(ComTypes.ITypeInfo typeInfo, int index)
{
_typeInfo = typeInfo;
_typeInfo.GetVarDesc(index, out _varDescPtr);
_varDesc = StructHelper.ReadStructureUnsafe <ComTypes.VARDESC>(_varDescPtr);
var names = new string[1];
typeInfo.GetNames(_varDesc.memid, names, 1, out var actualCount);
Name = actualCount >= 1 ? names[0] : "[unnamed]";
}
