/// <summary>
/// Populate the InnerList with a list of filters from a particular category
/// </summary>
protected void GetFilters(Guid category)
{
using (var enumDev = new CreateDevEnum((ICreateDevEnum) new Platform.CreateDevEnum()))
{
foreach (var moniker in enumDev.GetClasses(category))
{
using (new ComWrapper <IMoniker>(moniker))
{
InnerList.Add(new BaseFilter(moniker));
}
}
}
}
/// <summary>
/// This method gets a System.Runtime.InteropServices.ComTypes.IMoniker object.
///
/// HACK: The only way to create a System.Runtime.InteropServices.ComTypes.IMoniker from a moniker
/// string is to use System.Runtime.InteropServices.ComTypes.IMoniker.ParseDisplayName(). So I
/// need ANY System.Runtime.InteropServices.ComTypes.IMoniker object so that I can call
/// ParseDisplayName(). Does anyone have a better solution?
///
/// This assumes there is at least one video compressor filter
/// installed on the system.
/// </summary>
private static IMoniker GetAnyMoniker()
{
var category = FilterCategory.VideoCompressorCategory;
if (staticMonikers != null)
{
return(staticMonikers[0]);
}
staticMonikers = new IMoniker[1];
// Get the system device enumerator
using (var enumDev = new CreateDevEnum((ICreateDevEnum) new Platform.CreateDevEnum()))
{
staticMonikers[0] = enumDev.GetClasses(category).FirstOrDefault();
}
return(staticMonikers[0]);
}
