📄 atl_icmpcom.shtml
字号:
<HTML>
<!-- Header information-->
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<META NAME="Author" CONTENT="Chris Maunder">
<TITLE>ActiveX / ATL - An ATL project to run PING and TRACERT</TITLE>
</HEAD>
<!-- Set background properties -->
<body background="../fancyhome/back.gif" bgcolor="#FFFFFF" link="#B50029" vlink="#8E2323" alink="#FF0000">
<!-- A word from our sponsors... -->
<table WIDTH="100%">
<tr WIDTH="100%"><td><!--#exec cgi="/cgi/ads.cgi"--><td></tr>
</table>
<!-- Article Title -->
<CENTER><H3><FONT COLOR="#AOAO99">
An ATL project to run PING and TRACERT
</FONT></H3></CENTER>
<CENTER><H3><HR></H3></CENTER>
<!-- Author and contact details -->
This article was contributed by <A HREF="mailto:fforest@cyberenet.net">Fred Forester</A>.
<!-- Sample image and source code/demo project -->
<P><A HREF="atl_icmpcom.zip">Download Source Code and Example</A></p>
<br>
<!-- The article... -->
<P>The Icmpcom project is a basic ALT template created by the ATL wizard.
The control acts as an interface to the ICMP.DLL . This DLL is supplied by MS to allow
PING and TRACERT抯 to be run under a dos window.
<P>The Control can be used by a VB5 app to create a nice list box and series of
button and edit boxes to provide a user interface to PING and TRACERT.
<P>ICMP.DLL is impleted via a Thread which is started when the StartPing method is
called. The thread continues to run till the operation finishes or is canceled via
a StopPing call. Tracert is implemented automatically when a StartPing request
is issued and the tracert option in the parmlist is TRUE.
<P>The Methods should be invoked in the following order. SetPingVariables and RunPing
can be called as a request is needed. When the app terminates be sure to call
StopPing.</P>
<P>
<TABLE BORDER CELLSPACING=1 CELLPADDING=7 WIDTH=590>
<TR><TD WIDTH="50%" VALIGN="TOP">
StartICMP</TD>
<TD WIDTH="50%" VALIGN="TOP">
Must be the first call made to the control.
Loads and initializes the DLL returns an
error message thru the event sink if failed</TD>
</TR>
<TR><TD WIDTH="50%" VALIGN="TOP">
SetPingVariables(厖)</TD>
<TD WIDTH="50%" VALIGN="TOP">
Just That. It accepts most all of the options
accepted by the Dos Ping. It can support
all of them if you want to code them up.</TD>
</TR>
<TR><TD WIDTH="50%" VALIGN="TOP">
<P>RunPing()</TD>
<TD WIDTH="50%" VALIGN="TOP">
We can finally issue a ping request.
</TD>
</TR>
<TR><TD WIDTH="50%" VALIGN="TOP">
StopPing()</TD>
<TD WIDTH="50%" VALIGN="TOP">
tries to cancel the operation that is in
progress </TD>
</TR>
<TR><TD WIDTH="50%" VALIGN="TOP">
StopICMP</TD>
<TD WIDTH="50%" VALIGN="TOP">
Last call to the control. Unloads the DLL
and cleans up Winsock</TD>
</TR>
</TABLE>
<P>The Events will call into the container under 3 possible conditions.
<OL>
<LI>When the Ping/Tracert request wants to send back a reply.</LI>
<LI>When the Ping/Tracert request is completed</LI>
<LI>When StopICMP is called.</LI></OL>
<TABLE BORDER CELLSPACING=1 CELLPADDING=7 WIDTH=590>
<TR><TD WIDTH="50%" VALIGN="TOP">
<P>PingMsgEvent(BSTR)</TD>
<TD WIDTH="50%" VALIGN="TOP">
<P>Passes back the data returned from the
request. The data is pre formatted and ready
to display. </TD>
</TR>
<TR><TD WIDTH="50%" VALIGN="TOP">
<P>PingDoneEvent()</TD>
<TD WIDTH="50%" VALIGN="TOP">
<P>After each PING request is completed
</TD>
</TR>
<TR><TD WIDTH="50%" VALIGN="TOP">
<P>PingTerminated()</TD>
<TD WIDTH="50%" VALIGN="TOP">
<P>After StopICMP is called
</TD>
</TR>
</TABLE>
<P>The sample VB and MSVC++ app demonstrates how icmpcom works.
<P>The VC++ container was a little more work than VB. The Event Sinks
had to be added by creating a new class in class wizard based from
CcmdTarget. The functions (sink events) had to be added to the
CPP and H files manually after the class was created. Note the
BEGIN_DISPATCH_MAP() section in the cpp file.
<h4>Reference materials.</h4>
<P>Beginning ATL COM programming Wrox Press <A HREF="http://www.wrox.com/">http://www.wrox.com</A><BR>
Active/X COM control programming Wrox Press <A HREF="http://www.wrox.com/">http://www.wrox.com</A><BR>
The ATL samples from Visual C++ 5.0<BR>
The WorldOfATL <A HREF="http://www.worldofatl.com/">http://www.worldofatl.com</A><BR>
MFC CodeGuru ATL Section <A HREF="http://www.codeguru.com/">http://www.codeguru.com</A><BR>
MSJ June 1998 <A HREF="http://www.microsoft.com/msj">http://www.microsoft.com/msj</A><BR>
<!-- Remember to update this -->
<p>Last updated: 22 June 1998
<P><HR>
<!-- Codeguru contact details -->
<TABLE BORDER=0 WIDTH="100%">
<TR>
<TD WIDTH="33%"><FONT SIZE=-1><A HREF="http://www.codeguru.com">Goto HomePage</A></FONT></TD>
<TD WIDTH="33%"><CENTER><FONT SIZE=-2>© 1997 Zafir Anjum</FONT> </CENTER></TD>
<TD WIDTH="34%"><DIV ALIGN=right><FONT SIZE=-1>Contact me: <A HREF="mailto:zafir@home.com">zafir@home.com</A> </FONT></DIV></TD>
</TR>
</TABLE>
<!-- Counter -->
<!-- COUNTER REMOVED -->
</BODY>
</HTML>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -