qtwebengine

问题 i have generated a report for my program using html code but it doesn't show image in Qprinter. def run(self): view = QtWebEngineWidgets.QWebEngineView() view.setHtml("""<img src="header.jpeg" alt="logo" width="280" height="100">""") printer = QPrinter() printer.setPaperSize(QtCore.QSizeF(80 ,297), QPrinter.Millimeter) try : r = QPrintDialog(printer) if r.exec_() == QPrintDialog.Accepted: view.page().print(printer, self.print_completed) except Exception as e : print(e) html code that i want

问题 I have a function named generate_input_event . I'm trying to use this function to simulate a keypress within a QWebEngineView. def generate_input_event(window_id, key_code, modifiers, low_level_data, x, y): modifiers_flag = create_modifiers_flag(modifiers) logging.info("generate input, window: {} code: {}, modifiers {}".format( window_id, key_code, modifiers_flag)) event = QKeyEvent(QEvent.KeyPress, key_code, modifiers_flag) event.artificial = True event_window = window.get_window(window_id)

问题 I have a function named generate_input_event . I'm trying to use this function to simulate a keypress within a QWebEngineView. def generate_input_event(window_id, key_code, modifiers, low_level_data, x, y): modifiers_flag = create_modifiers_flag(modifiers) logging.info("generate input, window: {} code: {}, modifiers {}".format( window_id, key_code, modifiers_flag)) event = QKeyEvent(QEvent.KeyPress, key_code, modifiers_flag) event.artificial = True event_window = window.get_window(window_id)

问题 I would like to use PyQt5 to take a screenshot of a webpage. (A full webpage, including the stuff a user wouldn't see unless they scrolled down.) Supposedly, it is possible to do this in PyQt5 using QtWebEngine. How would you do it though? I specifically don't want the user to see a browser window opening or rendering. I just want a screenshot in a PNG file. 回答1: -This code was tested in : QT_VERSION_STR = 5.12.1 , PYQT_VERSION_STR = 5.12 NOTE: QtWebKit got deprecated upstream in Qt 5.5 and

问题 I want to simulate mouse Event in my Qt WebEngine app. I use PyQt5.8 , QT5.8 . This is my code: def mouse_click(self, x, y): point = QPoint(int(x), int(y)) eventp = QMouseEvent(QMouseEvent.MouseButtonPress,point,Qt.LeftButton,Qt.LeftButton,Qt.NoModifier) self.sendEvent(eventp) eventp = QMouseEvent(QMouseEvent.MouseButtonRelease,point,Qt.LeftButton,Qt.LeftButton,Qt.NoModifier) self.sendEvent(eventp) def sendEvent(self, event): recipient = self.webpage.view().focusProxy() recipient.grabKeyboard

问题 I want to simulate mouse Event in my Qt WebEngine app. I use PyQt5.8 , QT5.8 . This is my code: def mouse_click(self, x, y): point = QPoint(int(x), int(y)) eventp = QMouseEvent(QMouseEvent.MouseButtonPress,point,Qt.LeftButton,Qt.LeftButton,Qt.NoModifier) self.sendEvent(eventp) eventp = QMouseEvent(QMouseEvent.MouseButtonRelease,point,Qt.LeftButton,Qt.LeftButton,Qt.NoModifier) self.sendEvent(eventp) def sendEvent(self, event): recipient = self.webpage.view().focusProxy() recipient.grabKeyboard

问题 When QWebEngineView starts loading a web page , I want to inject a web page progress bar to it, my code as the following , but I cannot see the progress bar during loading , so what's wrong ? import sys from PyQt5.QtWidgets import * from PyQt5.QtWebEngineWidgets import * from PyQt5.QtWebEngineCore import * from PyQt5.QtCore import * class WebEngineView(QWebEngineView): def __init__(self, parent=None): super().__init__(parent) self.webPage = self.page() self.webPage.runJavaScript(''' var

问题 Is there any way to render HTML/SVG to printer, PDF, and raster images with QtWebEngine? We want to switch from WebKit to WebEngine, so using WebKit's QWebView is not an option anymore. 回答1: It is announced that Qt Web Engine will support printing to PDF in Qt 5.7 which is in beta now. Two overloads of printToPdf() function were added in Qt 5.7 for QWebEnginePage class. We have example how to use these new functions in our company blog. You can look for some already available Qt Web Engine

问题 I need to retrieve some html from a QWebEnginePage . I found in the documentation the method toHtml but it always returns an empty string. I tried toPlainText and it works, but this is not what I need. MyClass::MyClass(QObject *parent) : QObject(parent) { _wp = new QWebEnginePage(); _wp->settings()->setAttribute(QWebEngineSettings::AutoLoadImages, false); _wp->settings()->setAttribute(QWebEngineSettings::JavascriptEnabled, true); connect(_wp, SIGNAL(loadFinished(bool)), this, SLOT

问题 I'm using the new Qt5.4 with the module QtWebEngine and from what I see mainFrame() doesn't exists anymore. How to get the contentSize/size of the page and how to render it now? I tried with the setView and view but doesn't work. 回答1: Check if the QWebEnginePage::geometryChangeRequested signal does what you want. Also you display a QWebEnginePage by creating a QWebEngineView (it's a QWidget ) and calling QWebEngineView::setPage(yourPage) . 回答2: I couldn't find any native Qt method for that,