Returning values from function to different dialog controls

[Gintaras]

Let SendMessage send control id in wParam, and SetDlgItemText use wParam.

SendMessage hDlg WM_APP 4 "text is in text box 1"
SendMessage hDlg WM_APP 7 "text is in text box 2"

SetDlgItemText hDlg wParam F"{lParam%%s}"