How to 'build' WM_MOUSEWHEEL w/lParams?

[fabricio234]

does someone know how to build the `wParam` and `lParam` used on `WM_MOUSEWHEEL`?

Code: Select all

WindowTitle := "..."
WinGet, hWnd, Id, %WindowTitle%

msg := 522 ; WM_MOUSEWHEEL
x := 100
y := 100
wParam  := ?
lParam  := ?
PostMessage, %msg%, %wParam%, %lParam%,, ahk_id %hWnd%

im trying to simulate scroll up/down using send or postmessage