updated 'texturetest.cc' to work with current API
updated 'texturetest.cc' to work with current API

olivergondza/fluxbox,naimdjon/fluxbox,luebking/fluxbox,Arkq/fluxbox,lukoko/fluxbox,naimdjon/fluxbox,lukoko/fluxbox,luebking/fluxbox,naimdjon/fluxbox,luebking/fluxbox,naimdjon/fluxbox,naimdjon/fluxbox,lukoko/fluxbox,lukoko/fluxbox,lukoko/fluxbox,olivergondza/fluxbox,olivergondza/fluxbox,olivergondza/fluxbox,olivergondza/fluxbox,luebking/fluxbox,Arkq/fluxbox,luebking/fluxbox,Arkq/fluxbox,Arkq/fluxbox,Arkq/fluxbox