You can get the code and all the required resources to build this application by clicking the link below: You’ll put all this knowledge together by using the GUIs that you’ll build with Qt Designer in a sample text editor application. PyQt Layouts: Create Professional-Looking GUI Applications.Python and PyQt: Creating Menus, Toolbars, and Status Bars.Python and PyQt: Building a GUI Desktop Calculator.ui files in your GUI applicationsįor a better understanding of the topics in this tutorial, you can check out the following resources: How to create and lay out the GUI of your dialogs with Qt Designer.How to build and lay out the GUI of an application’s main window using Qt Designer.When to use Qt Designer vs hand coding for building your GUIs.What Qt Designer is and how to install it on your system.In this tutorial, you’ll learn how to use Qt Designer to create your GUIs productively. If you’re looking to create these graphical components in an efficient and user-friendly way, then Qt Designer is the tool for you. GUI applications often consist of a main window and several dialogs. The first path can dramatically improve your productivity, whereas the second path puts you in full control of your application’s code. Switch(CMUCOM.peek(&data,1))Ĭase-1:throwCMUCOM.To create a GUI for your windows and dialogs in PyQt, you can take two main paths: you can use Qt Designer, or you can hand code the GUI in plain Python code. Qint64len=CMUCOM.write((constchar*)buffer,(qint64)size) Size_tCMUcom4::write(constuint8_t*buffer,size_tsize) ReturnCMUCOM.putChar((char)c)?1:throwCMUCOM.errorString() Switch(CMUCOM.read(&c,1))Ĭase-1:throwCMUCOM.errorString() Ĭase0:return-1 ĭefault:break Q.exec() Īnd then the child preforms I/O with this code. QFuturefuture=QtConcurrent::run(&CMUCAM,&CMUcam4::begin) QFutureWatcherwatcher Ĭonnect(&watcher,SIGNAL(finished()),&q,SLOT(quit())) sleep.msleep(100) ĬtDtr(true) ĬtRts(true) ĬtDtr(false) ĬtRts(false) Return ĬtBaudRate(BAUD19200) ĬtDataBits(DATA_8) ĬtFlowControl(FLOW_OFF) ĬtParity(PAR_NONE) ĬtStopBits(STOP_1) ĬtTimeout(500) QMessageBox::critical(this,tr('Error'),CMUCOM.errorString()) I spawn the child thread in this section.ĬtPortName(item) ĬtQueryMode(QextSerialPort::Polling) So, I'm having some weird problems with the qextserialport library/ It seems when I call the read function with a child thread even after verifying that there are bytes in a buffer that the child thread never returns from read.

Qt serial port read