How can I cast a Pointer to any pointer type

[dormky 2]

I'm trying to use TValue.Make with a pointer. Unfortunately, "myPointer as PByte" is apparently not valid Delphi code (E2015 Operator not applicable to this operand type). "myPointer as Integer" and "myPointer" alone aren't valid either.

How can I tell Delphi to treat my pointer as just a number ? Basically, I need to do pointer arithmetic so as to give the correct address to TValue.Make.

[Alexander Sviridenkov 358]

Use NativeUInt(Pointer)

[dormky 2]

NativeUInt(Pointer) doesn't work. "NativeUInt(myPointer)" doesn't give the same number as "PByte(myRecord)", despite "myPointer" being the same value as "@myRecord".

 

Strangely, "PNativeUInt(myRecord)" isn't valid but "PByte(myRecord)" is, wtf ?

Edited August 16, 2023 by dormky

[David Heffernan 2345]

No idea what type myPointer is. A simple 10 line program would reveal all. 

[dormky 2]

"myPointer" is of type Pointer.

[David Heffernan 2345]

To cast to PByte then it's PByte(myPointer)