ttxxtt

What makes life dreary is the want of mo

日志

关于我

ttxxtt

无聊的人

文章分类

VC编辑框追加字符串并自动滚屏功能

2012-01-17 19:29:00| 分类： VC++ | 标签： |举报 |字号大中小订阅

下载LOFTER 我的照片书 |

今天在编写串口通信时，当接收到的字符串达到一定大小时，vc将会崩溃报错。
原因是在程式在接受数据时同时将数据写入了edit的关联变量力造成了数据的超限
改正方法是取消变量，直接通过往控件里插入数据。
也就是参照下面方法修改而来
long len = m_edit.GetWindowTextLength();
m_edit.SetSel(len,len);
m_edit.ReplaceSel(str);

下面的方法是转自网络。
CEdit *pEt = (CEdit *)GetDlgItem(IDC_EDIT_RECV);
//方式1
int nLen = GetWindowTextLength(pEt->m_hWnd);
pEt->SetSel(nLen, nLen);
pEt->ReplaceSel("要添加的文字");

//方式2
::SendMessage(GetDlgItem(hwnd,IDC_EDIT_RECV),EM_SETSEL,-1,0);
::SendMessage(GetDlgItem(hwnd,IDC_EDIT_RECV),EM_REPLACESEL,false,(long)buffer);

//方式3
CString str="append ";
int nLength=pEt->SendMessage(WM_GETTEXTLENGTH);
pEt->SetSel(nLength,nLength);
pEt->ReplaceSel(str);

//自动滚屏
pEt->LineScroll(pEt->GetLineCount());

评论这张

转发至微博

阅读(1048)| 评论(0)

历史上的今天

this.p={  m:2,
              b:2,
              loftPermalink:'',
              id:'fks_087067083086085064092084080070072087088069082084095066080085',
              blogTitle:'VC编辑框追加字符串并自动滚屏功能',
              blogAbstract:'<p style=\"border-top-width: 0px; border-left-width: 0px; border-bottom-width: 0px; margin-top: 0px; margin-bottom: 0px; border-right-width: 0px; list-style-type: none; list-style-position: initial; list-style-image: initial; font-family: 宋体; line-height: 28px; text-align: -webkit-auto;\"  \>今天在编写串口通信时，当接收到的字符串达到一定大小时，vc将会崩溃报错。<br\>原因是在程式在接受数据时同时将数据写入了edit的关联变量力造成了数据的超限<br\>改正方法是取消变量，直接通过往控件里插入数据。<br\>也就是参照下面方法修改而来<br\>long len = m_edit.GetWindowTextLength();<br\>m_edit.SetSel(len,len);<br\>m_edit.ReplaceSel(str);<br\><br\>下面的方法是转自网络。<br\>CEdit *pEt = (CEdit *)GetDlgItem(<a style=\"text-decoration: none; \" target=\"_blank\" rel=\"nofollow\" href=\"http://www.honhei.com/\"  \>IDC</a\>_EDIT_RECV);  <br\>//方式1</p\>',
              blogTag:'',
              blogUrl:'blog/static/196629143201201771924792',
              isPublished:1,
              istop:false,
              type:0,
              modifyTime:1326799754120,
              publishTime:1326799740097,
              permalink:'blog/static/196629143201201771924792',
              commentCount:0,
              mainCommentCount:0,
              recommendCount:0,
              bsrk:-100,
              publisherId:0,
              recomBlogHome:false,
              currentRecomBlog:false,
              attachmentsFileIds:[],
              vote:{},
              groupInfo:{},
              friendstatus:'none',
              followstatus:'unFollow',
              pubSucc:'',
              visitorProvince:'',
              visitorCity:'',
              visitorNewUser:false,
              postAddInfo:{},
              mset:'000',
              mcon:'',
              srk:-100,
              remindgoodnightblog:false,
              isBlackVisitor:false,
              isShowYodaoAd:false,
              hostIntro:'无聊的人',
              hmcon:'0',
              selfRecomBlogCount:'0',
              lofter_single:'<iframe width="140" height="560" style="overflow:hidden;" src="http://www.lofter.com/mailEntry.do?blogad=1&blog" frameBorder="0"></iframe>'
            }

{list a as x}
    {if !!x}
    <div class="iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
      {if x.visitorName==visitor.userName}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.visitorNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.visitorName)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        {if x.moveFrom=='wap'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/wapblog.html?frompersonalbloghome"><span title="来自网易手机博客" class="iblock wapIcon"> </span></a>
        {elseif x.moveFrom=='iphone'}
          <a class="noul pnt" target="_blank"><span title="来自iPhone客户端" class="iblock iphoneIcon"> </span></a>
        {elseif x.moveFrom=='android'}
          <a class="noul pnt" target="_blank"><span title="来自Android客户端" class="iblock androidIcon"> </span></a>
        {elseif x.moveFrom=='mobile'}
          <a class="noul pnt" target="_blank" href="http://blog.163.com/services/emsblog.html?frompersonalbloghome"><span title="来自网易短信写博" class="iblock wapIcon"> </span></a>
        {/if}
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.visitorName}/">
          ${fn(x.visitorNickname,8)|escape}
        </a>
      </div>
    </div>
    {/if}
    {/list}

<#--最新日志，群博日志--> <#--推荐日志-->

<p class="fc06">推荐过这篇日志的人：</p>
    <div>
      {list a as x}
      {if !!x}
      <div class="iblock nbw-fce nbw-f40">
        <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
        <img alt="${x.recommenderNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.recommenderName)}"/>
        </a>
        <div class="cwd thide">
          <a class="fc03 m2a" target="_blank" hidefocus="true" href="http://blog.163.com/${x.recommenderName}/">
            ${fn(x.recommenderNickname,6)|escape}
          </a>
        </div>
      </div>
      {/if}
      {/list}
    </div>
    {if !!b&&b.length>0}
    <p  class="fc06">他们还推荐了：</p>
    <ul>
    {list b as y}
      {if !!y}
        <li class="rrb"><span class="iblock">·</span><a class="fc03 m2a" target="_blank" href="http://blog.163.com/${y.recommendBlogPermalink}/?from=blog/static/196629143201201771924792">${y.recommendBlogTitle|escape}</a></li>
      {/if}
    {/list}
    </ul>
    {/if}

<#--引用记录--> <#--博主推荐--> <#--随机阅读--> <#--首页推荐--> <#--历史上的今天--> <#--被推荐日志--> <#--上一篇，下一篇--> <#-- 热度 -->

{list a as x}
    {if !!x}
    <div class="hotItem iblock nbw-fce nbw-f40">
      <a class="fc03 noul" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
      {if x.publisherUsername==visitor.userName}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}&r=${visitor.imageUpdateTime}"/>
      {else}
      <img alt="${x.publisherNickname|escape}" onerror="this.src=location.f40" class="cwd bdwa bdc0" src="${fn1(x.publisherUsername)}"/>
      {/if}
      </a>
      <div class="cwd vname thide">
        <a class="fc03 m2a"  target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/">
          ${fn(x.publisherNickname,8)|escape}
        </a>
      </div>
      <a class="f-myLikeIcons hottype {if x.type==1} js-liketype{elseif x.type==2} js-reblogtype{elseif x.type==3} js-sharetype{else}{/if}" target="_blank" hidefocus="true" href="http://blog.163.com/${x.publisherUsername}/"> </a>
    </div>
    {/if}
    {/list}

<#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->

页脚

我的照片书 - 手机博客 - 下载LOFTER APP - 订阅此博客

ttxxtt

导航

日志

VC编辑框追加字符串并自动滚屏功能

历史上的今天

最近读者

热度

评论

页脚