General and Desktop

Hi and welcome to devnet, Might be a silly question but do you have make installed on your system ?

Hi, You don't call show on your sw object and it's not part of your stacked widget.

@SGaist I ended up hocking up to resize event of parent widget to find out when size changed & resize my other widget acordingly. I ended up using "invisible" QLabel that retains size as my "spacer". I had to change its spacing role on the go depending of one or more widget are visible or not as I needed to retain correct order. So far works great. TIA

@Chrisw01 said in No Taskbar Icon on QDialog is shown before mainwindow.show() is called.: I've figured this out.. So is it time to mark your post as solved? Thanks.

@mpergand said in Trying to open and read a .txt file, but it deletes the actual text from the original file: In fact I'm suprised that the file is emptied Doc: QIODevice::WriteOnly: The device is open for writing. Note that, for file-system subclasses (e.g. QFile), this mode implies Truncate unless combined with ReadOnly, Append or NewOnly.

@SGaist said in SetTitlebarWidget & its height: Hi, You should show your widget implementation. Its something like fo = QDockWidget() fo.show() w = QPushButton("yoyoyooy") w.setMaximumHeight(10) fo.setTitleBarWidget(w) The PushButton is x pixels below top of window, so the title bar is still xx height.

In fact, it's the QTreeView::drawBranch that handles that.

Then use std::array since it suites your needs.

@vmanso said in Using QCustomPlot with Qt Quick (QML) instead of QWidget?: @SpaceToon Why not just use QtCharts instead of QCustomPlot ? https://doc.qt.io/qt-5/qtcharts-index.html But is it possible du plot sensor data via Bluetooth Low Energy in real time like this: Click for the video

@Chris-Kawa Maybe you can ping @AndyS again so we can take a look on it. I had no time for it to think about an own patch.

@JonB Ah, thx. so Poster knows about toplevel windows etc. No reason to get into that again then :)

@sandro4912 said in QGraphicsObject: ContextMenu does not show up: That should be it or any other things to concern? That's fine.

@hobbyProgrammer said in Qt app doesn't close properly (still visible in task manager): I really don't want 1 big class for this as it would probably be 500 lines of code 500 LOC are not that much actually :) You need to know what you want. If you set setQuitOnLastWindowClosed(false) only because of your MessageBox behavior, there is something wrong / not well structured with your classes.

Qt Creator 4.10.0 What do you mean with "as expected" ? How do you achieve this? Do you have screenshots?

@JonB Thank you so much.

processEvents spins a new eventloop - this means events in the queue are processed which may interfere with your stuff.

Maybe this example might be helpful: https://wiki.qt.io/WIP-How_to_create_a_simple_chat_application

@qwasder85 said in keyPressEvent subclass works only in debug: My guess is the keyboard focus. Try setFocus() on your dialog when it opens. Yes, it's definitely related to the focus. It's strange that the default event works in any case.

@pauledd You mean the background color "overspill" to right & bottom? I don't know but you might play with border-... or padding-... (I'm thinking margin- does not use background color, but I might be wrong) having a width/transparency/grey....