Hello, Below is a small class using ctypes and libspectre to read a postscript file. My program is a PyQT 4.4 application and when the user clicks on a entry in a QTableWidget, i run
PostScriptImage( filename_as_contained_in_clicked_tableWidgetItem ) However on i get a segfault while trying document_load. Surprisingly, before i run sys.exit(app.exec_()) (i.e before the app starts) if run PostScriptImage(command_line_specified_ps_file) it works! I know the ctypes so file works with QT since i wrote an application using it, but i hadn't separated the ctypes stuff into separate class (i.e the spectre code was in the widget method). Any ideas why the crash? Regards Saptarshi --Python Code-- class PostScriptImage: def __init__(self,filename): print "Doc New" self.document=libspec.spectre_document_new() print "Load Doc" , filename #############crashed in the following line######################### libspec.spectre_document_load(self.document,filename) print "Done load doc" if libspec.spectre_document_status(self.document): return False self.scale=[1.0,1.0] self.quicksetup() def quicksetup(self): print "RC" rc=libspec.spectre_render_context_new() print "Get 0th Page" page=libspec.spectre_document_get_page (self.document, 0) if libspec.spectre_document_status(self.document): raise Exception("Spectre:Setup Document Error") w= c_int() h= c_int() print "Page Size" libspec.spectre_page_get_size(page, byref(w),byref(h)) self.initialSize=(h.value*1.0,w.value*1.0) self.initialAspect=float(h.value)/float(w.value) self.npages=libspec.spectre_document_get_n_pages(self.document) -- http://mail.python.org/mailman/listinfo/python-list