_SetItem(hwndHD, i, phdi) \
'    (BOOL)SendMessage((hwndHD), HDM_SETITEM, (WPARAM)(int)(i), (LPARAM)(const
 HD_ITEM FAR*)(phdi))
Public Const HDM_LAYOUT = (HDM_FIRST + 5)
' Header_Layout(hwndHD, playout) \
'    (BOOL)SendMessage((hwndHD), HDM_LAYOUT, 0, (LPARAM)(HD_LAYOUT
 FAR*)(playout))
Public Const HDM_ORDERTOINDEX = (HDM_FIRST + 15)
Public Const HDM_SETIMAGELIST = (HDM_FIRST + 8)
'  Header_SetImageList(hwnd, himl) \
'        (HIMAGELIST)SNDMSG((hwnd), HDM_SETIMAGELIST, 0, (LPARAM)himl)
Public Const HDM_