Icon-ID for the command button. Will only be evaluated if the flag LLDESADDACTIONFLAG_ADD_TO_TOOLBAR is set. Use the program IconSelector.exe (in the Tools directory) to see the list of available icons with their IDs.
Platforms: Windows 10, Windows 11, Windows Server 2016 - 2025
.NET: .NET Framework 4.8, .NET 10, .NET 11