10.1.3 存取控制.htm

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            <P><FONT style="LINE-HEIGHT: 25px" face=arial color=#000000 
            size=2>假如有当前的DACL,则撷取DACL中相关ACEs的资讯可能是必需的。首先,您必须经由呼叫GetAclInformation,以找出DACL包含多少ACEs:</FONT></P>
            <DIV style="LINE-HEIGHT: 25px; BACKGROUND-COLOR: #d7d7d7"><FONT 
            style="LINE-HEIGHT: 25px" face=Arial size=3><PRE style="LINE-HEIGHT: 25px">BOOL GetAclInformation( <BR> PACL pACL, <BR> PVOID pACLInformation, <BR> DWORD dwACLInformationLength, <BR> ACL_INFORMATION_CLASS aclInformationClass);</PRE></FONT></DIV>
            <P><FONT style="LINE-HEIGHT: 25px" face=arial color=#000000 
            size=2>此函数可让您撷取经由pACL参数传递到这个函数的DACL(或是SACL)相关资讯。您应该传递结构的位址以取得ACL资讯为pACLInformation参数,而结构的长度则为dwACLInformationLength参数。AclInformationClass参数是个列举型态,它指出被传回的资讯类型,也定义您应该传递哪种结构类型为pACLInformation参数。表10-9列出AclInformationClass参数的可能值。</FONT></P>
            <CENTER style="LINE-HEIGHT: 25px">
            <TABLE style="LINE-HEIGHT: 25px" border=0>
              <TBODY style="LINE-HEIGHT: 25px">
              <TR style="LINE-HEIGHT: 25px">
                <TD style="LINE-HEIGHT: 25px" align=middle><FONT 
                  style="LINE-HEIGHT: 25px" face=arial color=#000000 
                  size=2><FONT style="LINE-HEIGHT: 25px" face=arial 
                  color=#3e80d7 size=2><B 
                  style="LINE-HEIGHT: 25px">&nbsp;表10-9&nbsp;</B></FONT>ACL_INFORMATION_CLASS列举型态</FONT></TD></TR></TBODY></TABLE></CENTER>
            <CENTER style="LINE-HEIGHT: 25px">
            <TABLE style="LINE-HEIGHT: 25px" border=1>
              <TBODY style="LINE-HEIGHT: 25px">
              <TR style="LINE-HEIGHT: 25px">
                <TH style="LINE-HEIGHT: 25px"><FONT style="LINE-HEIGHT: 25px" 
                  size=2>列举值</FONT> </TH>
                <TH style="LINE-HEIGHT: 25px"><FONT style="LINE-HEIGHT: 25px" 
                  size=2>结构</FONT> </TH>
                <TH style="LINE-HEIGHT: 25px"><FONT style="LINE-HEIGHT: 25px" 
                  size=2>定义</FONT></TH></TR>
              <TR style="LINE-HEIGHT: 25px">
                <TD style="LINE-HEIGHT: 25px"><FONT style="LINE-HEIGHT: 25px" 
                  size=2>AclRevisionInformation</FONT></TD>
                <TD style="LINE-HEIGHT: 25px"><FONT style="LINE-HEIGHT: 25px" 
                  size=2>ACL_REVISION_INFORMATION</FONT></TD>
                <TD style="LINE-HEIGHT: 25px"><FONT style="LINE-HEIGHT: 25px" 
                  size=2>传回ACL修订资讯</FONT></TD></TR>
              <TR style="LINE-HEIGHT: 25px">
                <TD style="LINE-HEIGHT: 25px"><FONT style="LINE-HEIGHT: 25px" 
                  size=2>AclSizeInformation</FONT></TD>
                <TD style="LINE-HEIGHT: 25px"><FONT style="LINE-HEIGHT: 25px" 
                  size=2>ACL_SIZE_INFORMATION</FONT></TD>
                <TD style="LINE-HEIGHT: 25px"><FONT style="LINE-HEIGHT: 25px" 
                  size=2>传回ACL大小的资讯,包括ACE总数</FONT></TD></TR></TBODY></TABLE></CENTER>
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