QWT Widgets not showing Qt Designer

horizonQt

Hi everyone. I am developing gui with qt. I need a linechart to show flight data and I will use qwt. I downloaded and added the library, but it does not appear in the qtdesigner section. ı use windows. my qt version is 6.3.1 and qwt verison 6.1.6. please help

SGaist

Hi and welocome to devnet,

Which version of Qt Creator are you using ?
Did you build QWT with the same version of Qt as Qt Creator ?
Did you deploy the plugin for Qt Creator to be able to found ?

horizonQt

@SGaist Qt Creator 8.0.0 and build qwt 6.1.6 . ım new to QT. I dont know how to deploy the plugin for Qt Creator to be able to found. Please help me.

SGaist

What does the about box of Qt Creator tell you about the Qt version used to build Qt Creator ? That's important piece, you have to build the plugin using that version of Qt,

horizonQt

@SGaist Qt Creator 8.0.0 based on Qt 6.3.1. But ım using desktop Qt 5.15.2 MinGW 64-bit. Thats mean when ı build new project ım use Qt5.15.2 MinGW . İts enough for you ? Thank you sir.

jsulm

@horizonQt If you want to build a plug-in for QtCreator you have to use same Qt version which was used to build QtCreator. So, build it using Qt 6.3.1

horizonQt

@jsulm said in QWT Widgets not showing Qt Designer:

@horizonQt If you want to build a plug-in for QtCreator you have to use same Qt version which was used to build QtCreator. So, build it using Qt 6.3.1

im using qt creator 8.0.0 based on Qt 6.3.1. ı want to add qwt6.1.6 widgets on designer. Can you explain step by step what not to do?

jsulm

@horizonQt See "Qwt and the Qt tool chain" -> "Designer plugin" in https://qwt.sourceforge.io/qwtinstall.html"

horizonQt

@jsulm I followed the steps. but it still does not appear as a widget. I can add it as a library and create a gui as hardcode. but ı dont see widget at qt designer

jsulm

@horizonQt Was the designer plug-in build and installed?
If so you can debug plug-in issues by setting QT_DEBUG_PLUGINS to 1 before starting QtCreator (in a terminal) - that should give you more information about plug-in loading issues.

horizonQt

@jsulm ı cant see any problem application output. Where should I look, what should I look for?

jsulm

@horizonQt said in QWT Widgets not showing Qt Designer:

Where should I look, what should I look for?

As I wrote in the terminal where you set QT_DEBUG_PLUGINS and start QtCreator

horizonQt

@jsulm
https://microseismic.cn/use-qwt-library-in-qt-to-display-seismic-waveforms.html ı follow this and ı solved thanks