Windows 10 still contains the Control Panel.  This is a Shell which contains several objects you can run.
In the Windows OS that existed before Windows Vista, most of the Control Panel objects could be started using a Shell command like so:
	
	
	
		Code:
	
	
		control.exe /name Microsoft.Personalization
	 
 
That would have opened the Control Panel's (
.cpl)  Shell object 
Personalization or if this was all ready open, it would bring the running instance to the front of any other open applications or shells.
Windows Vista saw the majority of the objects inside the Control Panel Shell becoming Shells in their own right, and this has continued through to Windows 10 where most of the Control Panel is now virtually obsolete given we now have the 
Windows Settings accessed via 
Start > Settings.
As most of the Control Panel's objects are Shells we need to access them by using the 
Shell::: command followed by the 
CLSID of the object, for example: 
{ED834ED6-4B5A-4bfe-8F11-A626DCB6A921} , then the System Application name of the Object, which for the 
CLSID GUID in this example is 
Microsoft.Personalization, and finally if we want a specific section of the application such as wallpaper, we add 
\pageWallpaper to the command, which results in the full command:
	
	
	
		Code:
	
	
		shell:::{ED834ED6-4B5A-4bfe-8F11-A626DCB6A921} -Microsoft.Personalization\pageWallpaper
	 
 
There are no Hexadecimal values involved directly in this case, unless you are referring to the two new values added to the Registry if you enable the Desktop Slideshow
- HKEY_CURRENT_USER\Control Panel\Personalization\Desktop Slideshow
 
You can manually edit these, but its probably easier to stick to the Decimal value where for example. 10000 would equal 10000 millisconds, i.e. 10 seconds, and 1 in the case of Shuffle, would simply equate to 
activate shuffle.