What are the definitions for LPARAM and WPARAM?

Question

I know I\'m being lazy here and I should trawl the header files for myself, but what are the actual types for LPARAM and WPARAM parameters? Are they pointers, or four byte i

Answer 1

LPARAM refers to a LONG_PTR and WPARAM refers to a UINT_PTR

On x86 they will be 4 bytes and on x64 they will be 8 bytes.