Windows脚本编程核心技术精解Chapter09.pdf

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1、4684-8ch09.f.qc3/3/009:35AMPage289Chapter9MasteringLinksInThisChapterLearnmoreaboutthepowerofshortcutfilesCreateandmodifyshortcutfilesbyscriptSearchforinvalidlinksandduplicatingkeyboardshortcutsChangeshortcuticonsdynamicallyPreselectashortcut’swindowsizeUsethehiddenShellLink

2、objecttoresolvebrokenlinksDiscovertheundocumentedlinkresolvingmechanismandthenewWindows2000DistributedLinkTrackingServiceOpenashortcuttarget’sPropertiespageMarkashortcuttargetfileintheExplorerNowthatyouknowhowtohandleyourfilesystem,takealookatlinkfiles.Inthischapter,youlearnwha

3、tlinkfilesareandhowtousethemtocustomizemenus.Youalsolearnhowtocreatenewlinkfilesfromscratchandhowtocheckexistinglinkfilesforerrors.UsingsecretAPIfunctions,youcanevenautomaticallyrepairbrokenlinkfiles.WhyDoINeedLinksAnyway?Linksaresmallbutextremelypowerfulfiles.Theyrepresentfiles,f

4、olders,andsystemobjectslocatedsomewhereelse.LinksbuildthefoundationofcustomizingWindows.LinksmaketheProgramsmenuwork.Toseehowimportantlinksreallyare,startasearchfor*.LNK.Scriptscanuselinkstoplacethemselvesinimportantplaces.YoucanaddyourscripttotheStartmenu,placeitintotheSendTofold

5、er,orinsertareferenceintotheStartupfolder.Inaddition,scriptscanusetheirlinkfunctionsformaintenance.Scriptscansearchforlinks,checkwhethertheirdestinationsarestillvalid,andsortoutanybrokenlinks.4684-8ch09.f.qc3/3/009:35AMPage290290PartII:ConqueringtheFileSystem■■Moreimportantly,scri

6、ptscanchecktheinternalkeyboardshortcutsandmakesuretherearenoduplicateentries.Windowsdoesn’tcheckforthis,allowingyoutoassignmultiplekeyboardshortcutstomorethanonelinkfile,oreventooverrideimportantbuilt-inWindowsshortcuts—resultinginerroneousbehavior.ByusingsomeundocumentedWindowsma

7、gic,youcanevenresolvebrokenlinksandmarkfilesandfolders.CreatinganewlinkfileTheWScript.Shellobjectcontainsallthemethodsneededformanaginglinks.ThefollowingexampleasksforanameandplacesashortcuttotheWindowseditorrightonyourdesktop:‘9-1.VBSsetwshshell=CreateObject(“WScript.Shell”)deskt

8、op=wshshell.SpecialFolders(“deskt