[name]
VixDiskLib_Attach

[description]
[code]
VixError
VixDiskLib_Attach(VixDiskLibHandle parentHandle, VixDiskLibHandle childHandle);
[endcode]

This function attaches the child disk chain to the parent disk chain. 
 The parent disk handle is invalid after attaching. The child handle
 represents the combined disk chain.

[parameters]
   parentDiskHandle - Handle to the parent virtual disk chain. 
   childDiskHandle - Handle to the child virtual disk chain. 

[return]
VIX_OK if the function succeeded, otherwise an appropriate VIX error code.

[remarks]
* Do not use the parentDiskhandle after the call to VixDiskLib_Attach().

[example]
[code]
   vixError = VixDiskLib_Attach(parent.Handle(), child.Handle());
[endcode]

