几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量

几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量 (http://www.dimcax.com/hust/index.php)
-   DirectDWG (http://www.dimcax.com/hust/forumdisplay.php?f=89)
-   -   【转帖】oddbobjectid (http://www.dimcax.com/hust/showthread.php?t=17569)

yang686526 2009-05-06 07:58 PM

【转帖】oddbobjectid
 
oddbobjectid
oddbobjectid
the oddbobjectid has a method called openobject() and another called safeopenobject(). what is the difference between them?

openobject() may return null if object can't be opened. safeopenobject() throws exception if object can't be opened. using safeopenobject() you need not check pointer returned for null after each call. you can catch exception at some high level if it's fatal situation for your programm.
sergey slezkin


所有的时间均为北京时间。 现在的时间是 05:39 AM.