private void PopulatePropertyList(List <PropertyConfig> propertyList,
PropertySystemNativeMethods.PropDescEnumFilter filter)
{
propertyList.Clear();
IPropertyDescriptionList propertyDescriptionList = null;
IPropertyDescription propertyDescription = null;
Guid guid = new Guid(ShellIIDGuid.IPropertyDescriptionList);
try
{
var hr = PropertySystemNativeMethods.PSEnumeratePropertyDescriptions(
filter, ref guid, out propertyDescriptionList);
if (hr >= 0)
{
propertyDescriptionList.GetCount(out uint count);
guid = new Guid(ShellIIDGuid.IPropertyDescription);
for (uint i = 0; i < count; i++)
{
propertyDescriptionList.GetAt(i, ref guid, out propertyDescription);
if (propertyDescription != null)
{
var shellProperty = new ShellPropertyDescription(propertyDescription);
var pc = new PropertyConfig(shellProperty);
shellProperty.Dispose(); // Releases propertyDescription
propertyDescription = null;
GetInstalledProperty(pc, true); // Add search and alias info
propertyList.Add(pc);
DictInstalledProperties.Add(pc.CanonicalName, pc);
}
}
}
}
finally
{
if (propertyDescriptionList != null)
{
Marshal.ReleaseComObject(propertyDescriptionList);
}
if (propertyDescription != null)
{
Marshal.ReleaseComObject(propertyDescription);
}
}
}
private PropertyConfig GetInstalledProperty(PropertyConfig pc, bool skipBasics = false)
{
try
{
PropertyConfig installed = null;
var key = new PropertyKey(pc.FormatId, (int)pc.PropertyId);
var guidDescription = new Guid(ShellIIDGuid.IPropertyDescription);
if (!skipBasics)
{
var hr = PropertySystemNativeMethods.PSGetPropertyDescription(
ref key, ref guidDescription, out IPropertyDescription propertyDescription);
if (hr >= 0)
{
var shellProperty = new ShellPropertyDescription(propertyDescription);
installed = new PropertyConfig(shellProperty);
shellProperty.Dispose(); // Releases propertyDescription
}
}
else
{
installed = pc; // Continue populating existing config
}
if (installed != null)
{
var guidSearch = new Guid(ShellIIDGuid.IPropertyDescriptionSearchInfo);
var hr = PropertySystemNativeMethods.PSGetPropertyDescription(
ref key, ref guidSearch, out IPropertyDescriptionSearchInfo propSearchInfo);
if (hr >= 0)
{
hr = propSearchInfo.GetSearchInfoFlags(out PropertySearchInfoFlags searchOptions);
if (hr >= 0)
{
installed.InInvertedIndex = searchOptions.HasFlag(PropertySearchInfoFlags.InInvertedIndex);
installed.IsColumn = searchOptions.HasFlag(PropertySearchInfoFlags.IsColumn);
installed.IsColumnSparse = searchOptions.HasFlag(PropertySearchInfoFlags.IsColumnSparse);
installed.AlwaysInclude = searchOptions.HasFlag(PropertySearchInfoFlags.AlwaysInclude);
installed.UseForTypeAhead = searchOptions.HasFlag(PropertySearchInfoFlags.UseForTypeAhead);
}
hr = propSearchInfo.GetColumnIndexType(out ColumnIndexType ppType);
if (hr >= 0)
{
installed.ColumnIndexType = ppType;
}
// Just the canonical name again
//hr = propSearchInfo.GetProjectionString(out IntPtr namePtr);
//if (CoreErrorHelper.Succeeded(hr) && namePtr != IntPtr.Zero)
//{
// string displayName = Marshal.PtrToStringUni(namePtr);
// Marshal.FreeCoTaskMem(namePtr);
//}
hr = propSearchInfo.GetMaxSize(out uint maxSize);
if (hr >= 0)
{
installed.MaxSize = maxSize;
}
Marshal.ReleaseComObject(propSearchInfo);
}
var guidAlias = new Guid(ShellIIDGuid.IPropertyDescriptionAliasInfo);
hr = PropertySystemNativeMethods.PSGetPropertyDescription(
ref key, ref guidAlias, out IPropertyDescriptionAliasInfo propAliasInfo);
if (hr >= 0)
{
hr = propAliasInfo.GetSortByAlias(guidDescription, out IPropertyDescription alias);
if (hr >= 0 && alias != null)
{
alias.GetCanonicalName(out string canonicalName);
pc.SortByAlias = canonicalName;
// To do Consider adding additional aliases
Marshal.ReleaseComObject(alias);
}
Marshal.ReleaseComObject(propAliasInfo);
}
}
return(installed);
}
#pragma warning disable CS0168 // Variable is declared but never used
#pragma warning disable IDE0059 // Unnecessary assignment of a value
catch (Exception ex)
#pragma warning restore IDE0059 // Unnecessary assignment of a value
#pragma warning restore CS0168 // Variable is declared but never used
{
return(null);
}
}