Hello,
this code could help you:
var
sbi:TSCROLLBARINFO;
begin
sbi.cbSize := sizeof(TSCROLLBARINFO);
// check for horizontal scrollbar
GetScrollBarInfo(ImageEnView1.Handle, OBJID_HSCROLL, sbi);
if (sbi.rgstate[0] and STATE_SYSTEM_INVISIBLE) = 0 then
ShowMessage('Horizontal scrollbar visible');
// check for vertical scrollbar
GetScrollBarInfo(ImageEnView1.Handle, OBJID_VSCROLL, sbi);
if (sbi.rgstate[0] and STATE_SYSTEM_INVISIBLE) = 0 then
ShowMessage('Vertical scrollbar visible');
end;