list.h

是WTL的开发包,直接包括在路径中,最好放在VC目录中,要更新的包请到官方网站去下载

// list.h : interface of the CMruList class
//
/////////////////////////////////////////////////////////////////////////////

#ifndef __LIST_H__
#define __LIST_H__

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000


class CMruList : public CWindowImpl<CMruList, CListBox>
{
public:
	SIZE m_size;


	CMruList()
	{
		m_size.cx = 200;
		m_size.cy = 150;
	}

	HWND Create(HWND hWndParent)
	{
		CWindowImpl<CMruList, CListBox>::Create(hWndParent, rcDefault, NULL,
			WS_POPUP | WS_THICKFRAME | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_VSCROLL | LBS_NOINTEGRALHEIGHT,
			WS_EX_CLIENTEDGE);
		if(IsWindow())
			SetFont(AtlGetStockFont(DEFAULT_GUI_FONT));
		return m_hWnd;
	}

	BOOL BuildList(CRecentDocumentList& mru)
	{
		ATLASSERT(IsWindow());

		ResetContent();

		int nSize = mru.m_arrDocs.GetSize();
		for(int i = 0; i < nSize; i++)
			InsertString(0, mru.m_arrDocs[i].szDocName);	// docs are in reversed order in the array

		if(nSize > 0)
		{
			SetCurSel(0);
			SetTopIndex(0);
		}

		return TRUE;
	}

	BOOL ShowList(int x, int y)
	{
		return SetWindowPos(NULL, x, y, m_size.cx, m_size.cy, SWP_NOZORDER | SWP_SHOWWINDOW);
	}

	void HideList()
	{
		RECT rect;
		GetWindowRect(&rect);
		m_size.cx = rect.right - rect.left;
		m_size.cy = rect.bottom - rect.top;
		ShowWindow(SW_HIDE);
	}

	void FireCommand()
	{
		int nSel = GetCurSel();
		if(nSel != LB_ERR)
		{
			::SetFocus(GetParent());	// will hide this window
			::SendMessage(GetParent(), WM_COMMAND, MAKEWPARAM((WORD)(ID_FILE_MRU_FIRST + nSel), LBN_DBLCLK), (LPARAM)m_hWnd);
		}
	}

	BEGIN_MSG_MAP(CMruList)
		MESSAGE_HANDLER(WM_KEYDOWN, OnKeyDown)
		MESSAGE_HANDLER(WM_LBUTTONDBLCLK, OnLButtonDblClk)
		MESSAGE_HANDLER(WM_KILLFOCUS, OnKillFocus)
		MESSAGE_HANDLER(WM_NCHITTEST, OnNcHitTest)
	END_MSG_MAP()

	LRESULT OnKeyDown(UINT /*uMsg*/, WPARAM wParam, LPARAM /*lParam*/, BOOL& bHandled)
	{
		if(wParam == VK_RETURN)
			FireCommand();
		else
			bHandled = FALSE;
		return 0;
	}

	LRESULT OnLButtonDblClk(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
	{
		FireCommand();
		return 0;
	}

	LRESULT OnKillFocus(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
	{
		HideList();
		return 0;
	}

	LRESULT OnNcHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& /*bHandled*/)
	{
		LRESULT lRet = DefWindowProc(uMsg, wParam, lParam);
		switch(lRet)
		{
		case HTLEFT:
		case HTTOP:
		case HTTOPLEFT:
		case HTTOPRIGHT:
		case HTBOTTOMLEFT:
			lRet = HTCLIENT;	// don't allow resizing here
			break;
		default:
			break;
		}
		return lRet;
	}
};

#endif // __LIST_H__