Join 16-bit integer to make a 32-bit in Delphi?

Question

I would like to know what is the equivalent to Make32 function in Delphi?

See the attached image...

Answer 1

I know three commonly used approaches.

Bitwise operations

u32 := (u16hi shl 16) or u16lo;

MAKELONG

u32 := MAKELONG(u16lo, u16hi);

LongRec cast

LongRec(u32).Hi := u16Hi;
LongRec(u32).Lo := u16Lo;

Answer 2

您可以将MakeLong用于两个单词，将MakeWord用于两个字节。