求助，无名块的问题
请问各位主高手，怎样用ARX编写实现无名块（*U）的具体程序，谢谢！回复
帮助中的例子:<P class=body>The following code begins an <FONT style="BACKGROUND-COLOR: #0a246a" color=#ffffff>anonymous</FONT> block, ends it, and retrieves its name.
<PRE class=prog_in_0>int status; </PRE><PRE class=prog_in_0>struct resbuf *entlist; </PRE><PRE class=prog_in_0>ads_point basept; </PRE><PRE class=prog_in_0>char newblkname; </PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>ads_point pnt1 = ( 0.0, 0.0, 0.0); </PRE><PRE class=prog_in_0>entlist = acutBuildList(</PRE><PRE class=prog_in_0> RTDXF0, "BLOCK", </PRE><PRE class=prog_in_0> 2, "*ANON", // Only the '*' matters.</PRE><PRE class=prog_in_0> 10, "1", // No other flags are set.</PRE><PRE class=prog_in_0> 0 ); </PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>if (entlist == NULL) { </PRE><PRE class=prog_in_0> acdbFail("Unable to create result buffer list\n"); </PRE><PRE class=prog_in_0> return BAD; </PRE><PRE class=prog_in_0>} </PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>status = acdbEntMake(entlist); </PRE><PRE class=prog_in_0>acutRelRb(entlist); // Release acdbEntMake buffer.</PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>if (status != RTNORM) { </PRE><PRE class=prog_in_0> acdbFail("Unable to start <FONT style="BACKGROUND-COLOR: #0a246a" color=#ffffff>anonymous</FONT> block\n"); </PRE><PRE class=prog_in_0> return BAD; </PRE><PRE class=prog_in_0>} </PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>// Add entities to the block by more acdbEntMake calls.</PRE><PRE class=prog_in_0>. </PRE><PRE class=prog_in_0>. </PRE><PRE class=prog_in_0>. </PRE><PRE class=prog_in_0>entlist = acutBuildList(RTDXF0, "ENDBLK", 0 ); </PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>if (entlist == NULL) { </PRE><PRE class=prog_in_0> acdbFail("Unable to create result buffer list\n"); </PRE><PRE class=prog_in_0> return BAD; </PRE><PRE class=prog_in_0>} </PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>status = acdbEntMake(entlist); </PRE><PRE class=prog_in_0>acutRelRb(entlist); // Release acdbEntMake buffer.</PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>if (status != RTKWORD) { </PRE><PRE class=prog_in_0> acdbFail("Unable to close <FONT style="BACKGROUND-COLOR: #0a246a" color=#ffffff>anonymous</FONT> block\n"); </PRE><PRE class=prog_in_0> return BAD; </PRE><PRE class=prog_in_0>} </PRE><PRE class=prog_in_0>status = acedGetInput(newblkname); </PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>if (status != RTNORM) { </PRE><PRE class=prog_in_0> acdbFail("<FONT style="BACKGROUND-COLOR: #0a246a" color=#ffffff>Anonymous</FONT> block not created\n"); </PRE><PRE class=prog_in_0> return BAD; </PRE><PRE class=prog_in_end_0>} </PRE>
<P class=body>To reference an <FONT style="BACKGROUND-COLOR: #0a246a" color=#ffffff>anonymous</FONT> block, create an insert entity with acdbEntMake(). (You cannot pass an <FONT style="BACKGROUND-COLOR: #0a246a" color=#ffffff>anonymous</FONT> block to the INSERT command.)
<P class=body>Continuing the previous example, the following code fragment inserts the <FONT style="BACKGROUND-COLOR: #0a246a" color=#ffffff>anonymous</FONT> block at (0,0).
<PRE class=prog_in_0>basept = basept = basept = 0.0; </PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>entlist = acutBuildList(</PRE><PRE class=prog_in_0> RTDXF0, "INSERT", </PRE><PRE class=prog_in_0> 2, newblkname, // From acedGetInput</PRE><PRE class=prog_in_0> 10, basept, </PRE><PRE class=prog_in_0> 0 ); </PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>if (entlist == NULL) { </PRE><PRE class=prog_in_0> acdbFail("Unable to create result buffer list\n"); </PRE><PRE class=prog_in_0> return BAD; </PRE><PRE class=prog_in_0>} </PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>status = acdbEntMake(entlist); </PRE><PRE class=prog_in_0>acutRelRb(entlist); // Release acdbEntMake buffer.</PRE><PRE class=prog_in_0> </PRE><PRE class=prog_in_0>if (status != RTNORM) { </PRE><PRE class=prog_in_0> acdbFail("Unable to insert <FONT style="BACKGROUND-COLOR: #0a246a" color=#ffffff>anonymous</FONT> block\n"); </PRE><PRE class=prog_in_0> return BAD; </PRE><PRE class=prog_in_end_0>} </PRE>
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