Xojo.Core.MemoryBlock.IndexOf
From Xojo Documentation
Method
Xojo.Core.MemoryBlock.IndexOf(offset As UInteger, other As Xojo.Core.MemoryBlock) As UInteger
Supported for all project types and targets.
Supported for all project types and targets.
Returns the position of the other MemoryBlock starting at the offset. Returns -1 if other was not found.