General and Desktop

Finally. This code works fine. void onPrint(QPrinter* printer) { QPagedPaintDevice* device = printer; QPainter painter; painter.begin(device); int w = device->width(); int h = device->height(); painter.drawLine(0,0,w,h); painter.drawLine(0,h,w,0); painter.drawEllipse(QPointF(w/2, h/2), w/10, w/10); painter.drawText(0, h, "pixels"); printer->newPage(); painter.end(); }

Hi yes it is. Just use the view as parent and it will be on top. QPushButton *button = new QPushButton("Im on top!",view); button->move( 100, 0); // use move to move it around

Everything seems to work OK without doing anything special as long as I am careful not to mix up which connection is used by which thread, so I am marking this as "solved".

Thank you. I wonder what additional dynamic link libraries I need，and I have used depends.exe to find these dll.

Thanks for your response. :)

Thx a lot. Will look on it.

Thank you very much, mrjj, You've been wonderfully helpful!

Hi Super you found the "Goto slot" feature. One note about that one. Its based on automatic match up using the widget name so after you used "goto slot" you should not rename the actionRules_Home as then it fails to auto connect. Nor should you rename the on_actionRules_Home_triggered function. The better solution is to use connect to do it manually as then you can get compile errors in case you renamed something. That said - for a small app with a few menu items, the auto connect is fine but in a multiple person project with an app having tons of menus and buttons, the auto connect is just too fragile in real life. At least thats my experience.

It looks that could be easily achieved using GTK3, so the best solution is to migrate from Qt4 to GTK3 when QX11EmbedContainer is used ? import gi gi.require_version("Gtk", "3.0") from gi.repository import Gtk, Gdk from subprocess import Popen seat = Gdk.Display.get_default().get_default_seat() def plugged_added(plugged_socket): Gdk.Seat.grab(seat, plugged_socket.get_window(), Gdk.SeatCapabilities.KEYBOARD, True) print("xterm attached") def plugged_removed(plugged_socket): Gdk.Seat.ungrab(seat) print("xterm detached") window = Gtk.Window(title="Xterm embed") socket = Gtk.Socket() window.add(socket) sock_id = str(socket.get_id()) socket.connect("plug-added", plugged_added) socket.connect("plug-removed", plugged_removed) cmd = ['/usr/bin/xfreerdp', "/v:someHost", "/u:someUser", "/p:somePassword", "/parent-window:{}".format(sock_id)] Popen(cmd) socket.show() window.show() window.connect("destroy", Gtk.main_quit) Gtk.main()

I would guess 'd' is no longer alive once src_pad_buffer_probe() is called.

Hi and welcome to devnet, Glad you found a solution and thanks for sharing ! One thing you can do is to take a look at the release logs to see what has changed. However from your description you may have found a regression. Did you already check the bug report system ?

Hi, Well it depends a bit on what you are going to implement. Can you give more details ? As for Vulkan, there have been several blog post recently on the Qt website, this should give you some ideas about what you can achieve with it.

Hi, You have to give more details about what you are using. What is a plotable ? What technology are you using ? What version of Qt ?

As @Kent-Dorfman already wrote, it's not unlikely that you get denied. Running stress test against servers without any form of agreement will likely be seen as a DOS attempt.

I solved by wrapping the definition of operator == into std namespace namespace std { bool operator==(const MyNamespace::MyClass class1, const MyNamespace::MyClass class2) { return (class1.a == class2.a); } }

@ratzz Solved, thank you!

It looks like you can construct a -Wno-... parameter even if it's not mentioned in https://clang.llvm.org/docs/DiagnosticsReference.html You can try to add -Wno-switch-enum in your specific case.

@sandro4912 said in QTableView resize row to contents to much space: However in your statement seems to be a typo It's the forum software, the blue this is '[ this ]'

QUdpSocket receives datagrams which should be read with QUdpSocket::readDatagram(): https://doc.qt.io/qt-5/qudpsocket.html#details