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图象上没有菜单,也没有按钮,如图1所示。<p><fontcolor="#ffffff"> </font>当鼠标移至猎豹头部时,豹头变成狮头按钮,且鼠标变为手指,如图2所示。<p><fontcolor="#ffffff"> </font>当鼠标移出狮头范围时,狮头隐藏,恢复主界面图象。若点击狮头按钮,则出现信息窗(见图3):<pre>WelcometotheDelphil.</pre><p><fontcolor="#ffffff"> </font><b>音响效果</b><p><fontcolor="#ffffff"> </font>如果要在上述“自动隐藏”按钮加上音响效果,可以在狮头出现时利用PlaySound()播放一个声音文件(.wav)。<p><fontcolor="#ffffff"> </font>但是,不能将PlaySound()直接加入ButtonImage的OnMouseMove事件中。这是因为,当鼠标在按钮上移动时,PlaySound()会不断重复执行。务必确保按钮出现时声音文件只播放一次!须如此这般:<p><fontcolor="#ffffff"> </font>1.为调用PlaySound()函数,并控制声音文件的播放次数,在Main.pas单元的implementation段加入:<pre> uses mmsystem; var noHide:Boolean;</pre><p><fontcolor="#ffffff"> </font>2.创建主窗体MainFrom的OnCreate事件处理程序,以初始化noHide变量:<pre> noHide:=True;</pre><p><fontcolor="#ffffff"> </font>3.将ButtonImage的OnMouseMove事件处理程序改为(begin与end之间的语句):<pre> ifnoHidethen begin PictureImage.Visible:=True; PlaySound('Sounds\Growl',0,SND_ASYNC); noHide:=False; end;</pre><p><fontcolor="#ffffff"> </font>4.将BackgroundImage的OnMouseMove事件处理程序改为(begin与end之间的语句):<pre> PictureImage.Visible:=False; noHide:=True;</pre><p><fontcolor="#ffffff"> </font>重新编译和运行。此时,当鼠标移至猎豹头部时,张牙舞爪、咆哮着的狮头出现,惊心动魄。<p><fontcolor="#ffffff"> </font>以上例程编译和运行环境是Delphi3.0和中文Windows98。</p></td></tr></table><br><img src="/xslimages/content/buttom.gif" align="absmiddle"></img> 相关内容 <br><ul><a href="/33554432/34603008/34668544/93524.htm">用DELPHI中Canvas特性开发图形软件<br><br></a><a href="/33554432/34603008/34668544/93523.htm">用DELPHI 设 计 屏 幕 保 护 程 序<br><br></a><a href="/33554432/34603008/34668544/93503.htm">用Delphi 4.0 设 计 新 型 界 面<br><br></a><a href="/33554432/34603008/34668544/93483.htm">无标题窗口的移动<br><br></a><a href="/33554432/34603008/34668544/93415.htm">从 实 例 看 Delphi 4 中 的 动 态<br><br></a><a href="/33554432/34603008/34668544/93411.htm">Delphi4.0系统提示信息的汉化<br><br></a></ul><br><font color="#000000"><font color="#1C82C5"><img src="/xslimages/content/buttom.gif" align="absmiddle"></img></font> 相关链接 </font><br><ul><a href="http://bbs.cpcw.com/forum/vb/">到程序方舟论坛,论坛主持人为你答疑!<br><br></a></ul><a href=""><font color="#FF9900"><font color="#CC0000"></font></font></a><font color="#000000"><font color="#1C82C5"><img src="/xslimages/content/buttom.gif" align="absmiddle"></img></font> 更多的 </font><br><table width="70%"><tr><td width="30%" valign="top" align="left"><ul><a href="/67108864/68157440/68419584/68423680/inverse1.htm">DELPHI</a><br></ul></td><td width="30%" valign="top" align="left"></td></tr></table></td></tr></table><table width="98%" border="0" cellspacing="0"><tr><td width="85%" height="19" align="center" bgcolor="#FDF0C4"><a href="mailto:ph@cpcw.com"> 本文版权归作者和天极网共同所有,如有任何版权问题,请与我们联系。 </a></td><td width="15%" bgcolor="#FFCC66" height="19"> 【 <a href="/index.htm"> 回首页 </a> 】 </td></tr></table><br></td><td colspan="2" valign="top" width="25%" bgcolor="#eeeeee"><table width="97%" align="center"><tr><td bgcolor="#ff9900" width="182" height="15"></td></tr></table><table width="97%" border="0" cellpadding="3" align="center"><tr><td valign="top" height="23" border="1" bgcolor="#eeeeee" cellspacing="0" bordercolor="#ff9900"><div align="center"> 火热链接 </div></td></tr><tr bgcolor="#F5F5F5"><td width="27%" height="20" align="left"><div align="left"><a href="/33554432/36700160/116464.htm">淄博广电被罚 吉通陪绑……</a><br><a href="/33554432/36700160/116429.htm">图文:首信公司与ECnet建全球B2B采购网</a><br><a href="/33554432/36700160/116416.htm">“反色情”触及儿童网站</a><br><a href="/33554432/36700160/116409.htm">WAP,未来的未来</a><br><a href="/33554432/36700160/116406.htm">日本:5年后IT业超美国</a><br><a href="/33554432/36700160/116394.htm">美国在线和时代华纳:引判例对付审查</a><br><a href="/33554432/36700160/116367.htm">WAP收费标准再次推迟出台</a><br><a href="/33554432/36700160/116348.htm">网络经济任重道远</a><br><a href="/33554432/36700160/116319.htm">苹果:我们并未对任何人施压</a><br><a href="/33554432/36700160/116322.htm">法官的离职不会影响微软案</a><br></div></td></tr></table><br><table width="97%" border="0" cellpadding="3" align="center"><tr bgcolor="#ff9900"><td valign="top" height="20"><div align="center"> 天极搜索 </div></td></tr><tr bgcolor="#F5F5F5"><form action="http://search.yesky.com/servlet/search" method="post" name="search" onsubmit="form_onsubmit(); 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