Menu
I have a Qt4 application with SVG icons, compiled with mingw (in windows), linked to Qt shared libraries.
When application is run, SVG icons show up in debug and release builds in linux, however in windows SVG icons show up only in debug build but not in release build.
All SVG icons are listed in project.qrc, and project.pro has RESOURCES = project.qrc. Application uses QtSvg4.dll (version 4.7.0).
Qt 4.7.0, Qt Creator 2.0.1, mingw/g++ 4.4.0.
Solution update: In application directory, create /imageformats/ directory and put qsvg4.dll there instead of application directory itself, or create a qt.conf file with appropriate path. More information in deploying plugins.
896
Scalable Vector Graphics, or SVGs, are a generally a good choice for use as icons on your website, because they are vector graphics. Vector graphics can be scaled to any size without losing quality. The files are small and compress well, so they won't make your website slow to load.
Qt supports the static features of SVG 1.2 Tiny. ECMA scripts and DOM manipulation are currently not supported. SVG drawings can be rendered onto any QPaintDevice subclass.
SVG images can be written directly into the HTML document using the <svg> </svg> tag. To do this, open the SVG image in VS code or your preferred IDE, copy the code, and paste it inside the <body> element in your HTML document. If you did everything correctly, your webpage should look exactly like the demo below.
for Qt 5.14 add a line to the .pro file
QT += svg
Since Qt5 the framework has been heavily modularized (List of Modules). Most likely you are missing the svg module. The application will still compile without complaining. Make sure the SVG module is installed on your system and linked (with qmake (Howto), cmake (Howto) or plain make). If it was linked successfully QImageReader::supportedImageFormats() will list SVG.
40
Most likely you will have to include the plugins from your qt dir. This involves making a qt.conf file that is local to your app (see here: http://doc.qt.io/qt-4.8/qt-conf.html , more specifically the [Paths] section), and copy c:\Qt\4.x.x\plugins\imageformats*.dll to your distributable's directory.
43
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
