procedure TForm1.FormMouseWheel(Sender: TObject; Shift: TShiftState;
WheelDelta: Integer; MousePos: TPoint; var Handled: Boolean);
begin
if Self.ActiveControl is TCombobox then
begin
Handled := True;
if WheelDelta < 0 then
ScrollBox1.Perform(WM_VSCROLL, SB_LINEDOWN, 0)
else
ScrollBox1.Perform(WM_VSCROLL, SB_LINEUP, 0);
end;
end;
procedure TForm1.FormMouseWheel(Sender: TObject; Shift: TShiftState;
WheelDelta: Integer; MousePos: TPoint; var Handled: Boolean);
begin
if Self.ActiveControl is TCombobox then
Handled := True
end;