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cellspacing="1" cellpadding="1" bgcolor="#000000"><tr bgcolor="#FFFFFF"><td width="100%" colspan="4" align="left"><table width="95%" align="center"><tr><td class="font1"><p align="center"><br><font size="3">用Delphi实现网络驱动器的映射和断开 </font><br><span class="nava"><font color="#CC9933">2000-07-04· -·-</font></span></p><p><font color="#000000">大家在运用Delphi编写网络应用程序时可能会遇到这样一个问题：在一个由Windows NT和Novell Netware组成的网络环境中，应用程序需要使用Novell网上的某些数据，如果每次都手工在Windows资源管理器中映射，断开网络驱动器，不仅繁琐而且显得不够专业。本文将介绍在Delphi中使用Windows32 API函数解决这一问题。 </font> <h3><font color="#000000">一、 基本原理</font></h3><font color="#000000"> 在Microsoft Windows环境下，应用程序使用Windows网络函数（WNet）来实现网络功能而不用关心网络的供应商及具体实现。因为WNet函数是独立于网络的。 </font><p><font color="#000000"> Wnet函数主要有：WnetAddConnection , WnetAddConnection2 , WnetAddConnection3 , WnetCancelConnection2等。本文主要用WnetAddConnection2，WnetCancelConnection2函数，下面简单介绍一下，关于WNet函数更详细的资料请参考Delphi的连机文档和Microsoft API函数说。 </font><p><font color="#000000"> WNetAddConnection2在Windows.pas中的函数原型如下： </font><pre><font color="#000000">function WNetAddConnection2(var lpNetResource: TNetResource;lpPassword, lpUserName: PChar; dwFlags: DWORD): DWORD; stdcall;为调用此函数必须填写lpNetResouce结构，此结构的定义为：typedef struct _NETRESOUCE{ DWORD dwScope; DWORD dwType; DWORD dwDisplayType; DWORD dwUsage; LPTSTR lpLocalName; LPTSR lpRemoteName; LPTSr lpProvider;} NETRESOURCE; 这里使用dwType,lpLocalName,lpRemoteName,lpProvider几个参数。其含义如下：dwType : 用于指定网络的资源类型，有以下RESOURCETYPE_ANY(任何资源) , RESOURCETYPE_DISK(磁盘资源) , RESOURCETYPE_PRINT（打印机资源）。lpLocalName : 指定本地设备。lpRemoteName : 指定远程网络名。lpProvider : 指定提供网络资源的供应商。如为空，则表示供应商未知。WNetAddConnection2函数的lpPassword为远程资源的口令。 lpUserName为远程资源的用户名。dwFlags标志位用于指定登录时是否重新连接（0时表示不重新连接，CCONNECT_UPDATE_PROFILE登录时重新连接）。WnetCancelConnection2在Windows.pas中的函数原型如下：function WNetCancelConnection2(lpName: PChar; dwFlags: DWORD; fForce: BOOL): ⌨️ 快捷键说明
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