Windows Embedded Compact 7 - Unable to import library Qt5Gui.dll

SGaist

Do you have the svg plugin on WEC7 ?

Erakis

How to know?

If the dll "/imagesformats/qsvg.dll" is here and the "qtsvg.dll" is also at the root of the project, is that correct ?

SGaist

That part looks good

Erakis

list itemI create a QtQuick2 empty exemple.
Copy the executable on the SDCard deploy folder, \DeployFolder
I copy the folder \qml to *\DeployFolder*
I copy the folder \plugins to *\DeployFolder*
I copy ALL the DLL of \bin to *\DeployFolder*
I copy the file msvcr90.dll to *\DeployFolder*

Still no result, the application is hanging while starting, no output. What could be missing ? I've put ALL what exists from the build directory of QT ! This is very annoying :(

The SVG seems to be buggy on Windows CE or there something that I don't understand yet.

Somebody has another idea ?

SGaist

Then let's get back to the basics, can you run a simple hello world ?

Erakis

Yes without any problem.

I can also run application based Widget.

I can also run QtQuick2 application if I don't include the /imageformats folder. But this way I cannot use any svg images or any other image that need plugin inside of this folder. As long as I include the /imageformats folder, the application start but I have no display.

SGaist

Ok, then do you have the problem only with the svg plugin or any of the other ?

Erakis

Here is what I have tried :

I create an empty QtQuick2 project and copy it to my deploy. The deploy folder is having ALL QT plugins, dll, etc...
- Copy the executable on the SDCard deploy folder, \DeployFolder
- I copy the folder \qml to \DeployFolder
- I copy the folder \plugins to \DeployFolder
- I copy ALL the DLL of \bin to \DeployFolder
- I copy the file msvcr90.dll to \DeployFolder

I launch the executable and then it start properly and I have a window with graphical output.

Secondly I add this to application :

<RCC>
    <qresource prefix="/">
        <file>main.qml</file>
        <file>MainForm.ui.qml</file>
        <file>CMYK.jpg</file>
    </qresource>
</RCC>

Window {
    visible: true
    MainForm {
        anchors.fill: parent
        Image {
            source: "qrc:/CMYK.jpg"
            width : 80;  height : 80;
        }
    }
}

It start properly with graphical output.

Now I remove the jpg image and replace it by one of my SVG file. Surprise, it works also !!!

Now I tried to add 5 more SVG images to my resource file and create 5 more images element to my qml, but this time it failed ! Same problem as my original application. Now we can deduce that this is the number of images that makes the application crash or is it a particular image QT dislikes. To be sure I have tried with some of the svg images that I found in **src\qtsvg\examples\svg**, some works, other not.

After doing some test, I conclude that some svg image are crashing application and other simply work. This is weird, those image a very tiny icon not complex. And why they are ALL working on Windows Desktop but not on Windows CE ? Is there any limitation or know issue on Windows CE about SVG images ? I hope someone here can confirm this and provide a fix if possible.

As example, those one are not working on Windows CE:

Image { source: "qrc:/bubbles.svg"; sourceSize.width: 60; sourceSize.height: 60; width : 60; height : 60}
Image { source: "qrc:/volume-up.svg"; sourceSize.width: 60; sourceSize.height: 60; width : 60; height : 60}
Image { source: "qrc:/spinner.svg"; sourceSize.width: 60; sourceSize.height: 60; width : 60; height : 60}

SGaist

Can you check whether they use the same SVG standard ?

Erakis

This the ones that are coming with QT example... they should work.

SGaist

At least bubbles.svg is animated, so I wonder if it has something to do with it