Method OnNotifyTree

src/windows/ChannelView.cpp:521–566

}

bool ChannelView::OnNotifyTree(LRESULT& out, WPARAM wParam, LPARAM lParam)
{
	LPNMHDR nmhdr = (LPNMHDR)lParam;

	switch (nmhdr->code)
	{
		case TVN_ITEMEXPANDED:
		{
			NMTREEVIEW* nmtv = (NMTREEVIEW*)lParam;

			HTREEITEM hItem = nmtv->itemNew.hItem;
			if (!hItem) break;

			SetItemIcon(hItem, nmtv->action == TVE_EXPAND ? m_nCategoryCollapseIcon : m_nCategoryExpandIcon);
			break;
		}
		case TVN_SELCHANGED:
		{
			NMTREEVIEW* nmtv = (NMTREEVIEW*) lParam;

			HTREEITEM hSelectedItem = nmtv->itemNew.hItem;
			if (!hSelectedItem) break;

			TVITEM item;
			item.hItem = hSelectedItem;
			item.mask = TVIF_PARAM;
			if (!TreeView_GetItem(m_treeHwnd, &item)) break;

			// look for a channel with that name
			size_t idx = size_t(item.lParam);
			if (idx >= m_channels.size())
				break;

			Snowflake sf = m_channels[item.lParam].m_snowflake;

			if (sf) {
				m_currentChannel = sf;
				GetDiscordInstance()->OnSelectChannel(sf);
			}

			break;
		}
	}

	return false;
}

bool ChannelView::OnNotifyList(LRESULT& out, WPARAM wParam, LPARAM lParam)
{