linux下python抓屏小程序详解编程语言

self.window.set_default_size(1,1) self.window.connect("button-press-event", self.button_press_cb) self.first = None self.second = None self.window.show() #self.window.set_events(gtk.gdk.BUTTON_PRESS_MASK) def getWindow(self): return self.window def button_press_cb(self, widget, event): #print "type is %d" % event.type if event.type == gtk.gdk.BUTTON_PRESS: if event.button == 1: #left button print "(%d, %d), (%d, %d), button is %d" % (event.x_root, event.y_root, event.x, event.y, event.button) if not self.first: self.first = MyPoint(event.x_root, event.y_root) else: self.second = MyPoint(event.x_root, event.y_root) self.snap(None, MyRect(self.first, self.second)) self.first = None elif event.button == 3: #right button self.uncapture() else: pass def uncapture(self): if self.first: print "cancel" self.first = None else: print "exit now" gtk.gdk.pointer_ungrab() gtk.mainquit() def capture(self, time = 0L): cursor = gtk.gdk.Cursor(gtk.gdk.display_get_default(), gtk.gdk.CROSSHAIR) ret = gtk.gdk.pointer_grab(self.window.window, True, gtk.gdk.BUTTON_PRESS_MASK, None, cursor, time) if ret == gtk.gdk.GRAB_SUCCESS: print "left button start, end, right button cancel/exit" else: print "failed to capture %d, (viewable %d),(frozen %d), (already %d)" / % (ret, gtk.gdk.GRAB_NOT_VIEWABLE, gtk.gdk.GRAB_FROZEN, gtk.gdk.GRAB_ALREADY_GRABBED) def snap(self, window = None, rect = None, name = None): w = window if not window: #w = gtk.gdk.get_default_root_window() d = gtk.gdk.display_get_default() w = d.get_default_screen().get_root_window() r = rect if not r: sz = w.get_size() r = MyRect(0, 0, sz[0], sz[1]) print "The size of the window is (%d, %d, %d, %d)" % (r.x, r.y, r.w, r.h) n = name if not n: n = "screenshot.png" buf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,False,8, r.w, r.h) buf = buf.get_from_drawable(w,w.get_colormap(), r.x, r.y, 0, 0, r.w, r.h) if (buf != None): buf.save(n, "png") print "Screenshot saved to %s." % n else: print "Unable to get the screenshot." def timeout(data): #print "timeout" data.capture() if __name__ == __main__: cap = MyCaptureGtk() w = cap.getWindow() w.show() glib.timeout_add_seconds(1, timeout, cap) #cap.snap() gtk.main()

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