GETIMAGELIST = (HDM_FIRST + 9)
' Header_GetImageList(hwnd) \
'        (HIMAGELIST)SNDMSG((hwnd), HDM_GETIMAGELIST, 0, 0)

Public Const HHT_NOWHERE = &amp;H1
Public Const HHT_ONHEADER = &amp;H2
Public Const HHT_ONDIVIDER = &amp;H4
Public Const HHT_ONDIVOPEN = &amp;H8
Public Const HHT_ABOVE = &amp;H100
Public Const HHT_BELOW = &amp;H200
Public Const HHT_TORIGHT = &amp;H400
Public Const HHT_TOLEFT = &amp;H800
Public Const HDM_HITTEST = (HDM_FIRST + 6)

Public Const H_MAX As Long = &amp;HFFFF + 1
Public Const H