On Tuesday, May 10, 2011 14:14:11 Benoît Minisini wrote: > > Question on Gambas 3 > > > > I need to find pixelcolor from a drawingarea painted with the draw event. > > I tried already several variants of drawingarea.grab but always fail. > > > > the help for Grab is weak and typeof(drawingarea.grab) gives 13 > > (function) > > > > goal is to select pixel (drawn object as lines is not possible i gues) > > when on mouse.move over drawingarea. > > > > wally > > You can't, because the DrawingArea contents is stored inside the X server > (or the graphic card). This is a X11 thing. > > You have to use an intermediate Image object in memory. > > Regards,
that's what i tried using grab(). no idea how this works just a an example line for gb3, is highly welcome :) thx ------------------------------------------------------------------------------ Achieve unprecedented app performance and reliability What every C/C++ and Fortran developer should know. Learn how Intel has extended the reach of its next-generation tools to help boost performance applications - inlcuding clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
