if (width == 0) width = wi->right - wi->left + 1;

	Window *dw = AllocateWindow(

		w->left + wi->left,

		top,

		width,

		height,

		DropDownMenuWndProc,

		WC_DROPDOWN_MENU,

		_dropdown_menu_widgets);

	dw->widget[0].color = wi->color;

	dw->widget[0].bottom = height - 1;

	dw->SetWidgetHiddenState(1, !scroll);

	if (scroll) {

		/* We're scrolling, so enable the scroll bar and shrink the list by

		 * the scrollbar's width */

		dw->widget[1].color  = wi->color;

		dw->widget[1].right  = dw->widget[0].right;

		dw->widget[1].left   = dw->widget[1].right - 11;

		dw->widget[1].bottom = height - 1;

		dw->widget[0].right -= 12;