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Questions tagged [qchar]

The QChar class, part of the Qt framework, provides a 16-bit Unicode character.

In Qt, Unicode characters are 16-bit entities without any markup or structure. This class represents such an entity. It is lightweight, so it can be used everywhere. Most compilers treat it like a unsigned short.

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In Qt, how do I convert the Unicode codepoint U+1F64B to a QString holding its equivalent character ""?

Background: I am making a hash that will allow you to lookup the description you see below by feeding it a QString containing its character. I got a full list of the relevant data, looking something like this: QHash…
Anon
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Qt chart error: ASSERT: "width > 0.0" in file painting\qrasterizer.cpp, line 761

I got an error when using QValueAxis in QtCharts: ASSERT: "width > 0.0" in file painting\qrasterizer.cpp, line 761 This happens when the QBarSet values are all 0. I have this example with the minimal necessary code below: #include…
Theodore Tang
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qt QScatterSeries clicked signal is emitted to ChartView mousePressEvent

I have a custom implementation of QChartView where I can zoom. (Class "ChartView" from this example) In there I have a mousePressEvent. Now I wanted to add a QScatterSeries and connect the clicked signal with a custom slot. Unfortunately as soon…
user7431005
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QChar to uint32_t conversion / casting in Qt

I have a QString of 1500 QChar which I want to convert to an array of uint32_t. I am reading each element in for loop and trying to save each QChar of QString to uint32_t array. I can convert it to its equivalent representation (e.g. 1 -> 49)…
aly
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QChar stores a negative Latin1 code for multiply sign '×'

I want to get the Latin1 code for multiply sign ×, but when I check the value inside the QChar it has -41'×'. My code: QString data = "×"; QChar m = data.at(0); unsigned short ascii = (unsigned short)m.toLatin1(); When I debug, in the second line I…
Robert
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How convert QChar to char code in cp866 table?

How get int code of qchar in this table http://www.ascii-codes.com/cp866.html ? Here is my code: int getCp866Code(QChar c) { if (!c.isSurrogate()) { QString temp = c; QTextCodec* cp866 = QTextCodec::codecForName("IBM 866"); …
lukaville
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Qchar* to char* conversion

I'm building a Qt Gui application for monitoring data from serial port.I'm using qextserialport library. Here's the problem I ran into. void MainWindow::onDataAvailable() { QString data_ser,data_trimmed; port->readLine(data_ser.data(),0); …
tez
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QChar::isLetterOrNumber() fails

I want to convert QStrings into filenames. Since I'd like the filename to look clean, I want to replace all non-letters and non-numbers by an underscore. The following code should do that. #include #include QString…
Johannes
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