qtgui

I want a line edit which accepts an ip address. If I give input mask as: ui->lineEdit->setInputMask("000.000.000.000"); It is accepting values greater than 255. If I give a validator then we have to give a dot(.) after every three digits. What would the best way to handle it? lpapp It is accepting value greater than 255. Absolutely, because '0' means this : ASCII digit permitted but not required. As you can see, this is not your cup of tea. There are at least the following ways to circumvent it: Write a custom validator Use regex Split the input into four entries and validate each entry on its

I have multiple versions of Qt installed, and I need to compile my project with all of them. Using a pro file, I could not find in the documentation how to do a conditional compilation. Ideally, this is what I would like to do: QT_VERSION = 5 # this can be 4, set manually if(QT_VERSION == 5) { QT += widgets } if(QT_VERSION == 4) { QT += gui } Naturally, the if() command does not exist in pro files. Is there a better way to do the same thing? Nemanja Boric You can use conditional functions and scopes here: QT_VERSION = 5 # this can be 4, set manually equals(QT_VERSION, 5){ QT += widgets }

I'm still learning Qt and I am indebted to the SO community for providing me with great, very timely answers to my Qt questions. Thank you. I'm quite confused on the idea of adding a header to a QTableWidget . What I'd like to do is have a table that contains information about team members. Each row for a member should contain his first and last name, each in its own cell, an email address in one cell, and office in the other cell. I'd to have a header above these columns to name them as appropriate. I'm trying to start off easy and get just the header to display "Last" (as in last name). Here

I am trying to get a live plot of data as it is being collected by an instrument using pyqtgraph. The data collection is handled by the main process this is then passed over a connection to a subprocess that plots it. I am just trying to pass the new data and have it update when the new data is passed. I have tried to implement this by putting the connection read inside the Qt Timer update loop but then I have difficulty passing the graph data (which I want to append to) between successive update cycles. I omitted from the code below, but basically I want to join up successive lots of connData

Clicking Dialog_01's button hides its window and opens Dialog_02. Clicking Dialog_02's button should close its windows and unhide Dialog_01. How to achieve it? import sys, os from PyQt4 import QtCore, QtGui class Dialog_02(QtGui.QMainWindow): def __init__(self): super(Dialog_02, self).__init__() myQWidget = QtGui.QWidget() myBoxLayout = QtGui.QVBoxLayout() Button_02 = QtGui.QPushButton("Close THIS and Unhide Dialog 01") Button_02.clicked.connect(self.closeAndReturn) myBoxLayout.addWidget(Button_02) myQWidget.setLayout(myBoxLayout) self.setCentralWidget(myQWidget) self.setWindowTitle('Dialog 02

Is there some reason that QtGui is packaged with PyQt5??? I am using Mark Summerfield's Rapid GUI programming book. Obviously this book was written with Qt4 in mind, but I have been recommended to use Qt5, and PyQt5. I want to run the first example code in chapter 4. The code begins with the following import statements: import sys import time from PyQt5.QtCore import * from PyQt5.QtGui import * To which the compiler responds: Traceback (most recent call last): File "wakeUp.py", line 4, in <module> from PyQt5.QtGui import * ImportError: No module named 'PyQt5.QtGui' Note that the PyQt5.QtCore