`-[NSWindow windowNumber]` returns a value less than or equal to 0 if the receiver doesn't have a window device. If that is the case, CGSGetWindowTags() and CGSSetWindowTags() shouldn't be called.
`-[NSWindow windowNumber]` returns a value less than or equal to 0 if the receiver doesn't have a window device. If that is the case, CGSGetWindowTags() and CGSSetWindowTags() shouldn't be called.

coltonfisher/coltonfisher-growl,tectronics/growl,nochkin/growl,chashion/growl,ylian/growl,SalrJupiter/growl,chashion/growl,xhruso00/growl,nagyistoce/growl,timbck2/growl,nochkin/growl,tectronics/growl,Shalaco/shalzers-growl,xhruso00/growl,xhruso00/growl,Shalaco/shalzers-growl,nagyistoce/growl,doshinirav/doshinirav-myversion,tectronics/growl,coltonfisher/coltonfisher-growl,chashion/growl,Shalaco/shalzers-growl,tectronics/growl,Shalaco/shalzers-growl,xhruso00/growl,nochkin/growl,SalrJupiter/growl,SalrJupiter/growl,timbck2/growl,CarlosCD/growl,Shalaco/shalzers-growl,nkhorman/archive-growl,doshinirav/doshinirav-myversion,morganestes/morganestes-growl,doshinirav/doshinirav-myversion,SalrJupiter/growl,chashion/growl,ylian/growl,nochkin/growl,tectronics/growl,chashion/growl,timbck2/growl,nkhorman/archive-growl,doshinirav/doshinirav-myversion,an0nym0u5/growl,ylian/growl,nochkin/growl,SalrJupiter/growl,nkhorman/archive-growl,xhruso00/growl,morganestes/morganestes-growl,nagyistoce/growl,ylian/growl,coltonfisher/coltonfisher-growl,CarlosCD/growl,xhruso00/growl,an0nym0u5/growl,doshinirav/doshinirav-myversion,nkhorman/archive-growl,coltonfisher/coltonfisher-growl,CarlosCD/growl,CarlosCD/growl,morganestes/morganestes-growl,an0nym0u5/growl,SalrJupiter/growl,ylian/growl,doshinirav/doshinirav-myversion,Shalaco/shalzers-growl,an0nym0u5/growl,morganestes/morganestes-growl,nagyistoce/growl,Shalaco/shalzers-growl,an0nym0u5/growl,nochkin/growl,ylian/growl,Shalaco/shalzers-growl,CarlosCD/growl,Shalaco/shalzers-growl,coltonfisher/coltonfisher-growl,nagyistoce/growl,nkhorman/archive-growl,coltonfisher/coltonfisher-growl,Shalaco/shalzers-growl,doshinirav/doshinirav-myversion,timbck2/growl,chashion/growl,nagyistoce/growl,CarlosCD/growl,coltonfisher/coltonfisher-growl,morganestes/morganestes-growl,an0nym0u5/growl,timbck2/growl,morganestes/morganestes-growl,Shalaco/shalzers-growl,CarlosCD/growl,nkhorman/archive-growl,timbck2/growl,tectronics/growl