To import pulgin in qml(Qt 4.7.4)

bts-007

(opencv-camera-capture-with-qml) I am using this plugin from the below link

http://f24h.altervista.org/blog/opencv-camera-capture-with-qml/

Here is the steps what I followed
@
step 1

Under Qt Quick Project->Qt Quick Ui

Name : main
Create in: /home/bts-007/QtSDK/work/

step 2

Extracted the(plugin) tar file with in the folder main

step 3

edited main.qml from the use case

import opencv.components 1.0

CvCamView {
    id: camView
    width: 800
    height: 600
    camera: 0
    cameraState: CvCamView.ActiveState //unneeded because this is the default state
    resolution: CvCamResolution {
                    width: 800
                    height: 600
                }
    onNewFrame: {
        console.log("new frame recived");
        consumer.detectSomething(iplWidth, iplHeight, iplData);
    }

}

step 4
changed main.qmlproject

import QmlProject 1.1

Project {
mainFile: "main.qml"

/* Include .qml, .js, and image files from current directory and subdirectories */
QmlFiles {
    directory: "."
}
JavaScriptFiles {
    directory: "."
}
ImageFiles {
    directory: "."
}
/* List of plugin directories passed to QML runtime */
importPaths: [ "." ]  // this is the change what I made(set to current path)

}

step 5
run the program.
@

cvcamview_plugin.cpp

@
#include "cvcamview_plugin.h"
#include "cvcamview.h"
#include "cvcamresolution.h"
#include "cvhaardetector.h"

#include <QApplication>
#include <QtDeclarative/qdeclarative.h>

void CvCamViewPlugin::registerTypes(const char *uri)
{
// @uri opencv.components
qmlRegisterType<CvCamResolution>(uri, 1, 0, "CvCamResolution");
qmlRegisterType<CvCamView>(uri, 1, 0, "CvCamView");
qmlRegisterType<CvHaarDetector>(uri, 1, 0, "CvHaarDetector");

}

Q_EXPORT_PLUGIN2(CvCamView, CvCamViewPlugin)
@

uri - opencv.components

I am getting an error message module "opencv.components" is not installed
import opencv.components 1.0 .

I can access the properties but I don't know why it is showing the error message

Gennon

What you probably need is this little piece of code:

http://qt-project.org/doc/qt-5.0/qtqml/qqmlengine.html#addImportPath

You need to do this in the main.cpp file. Or where ever you have access to the engine/viewer. Should work in 4.7.4 as well, I think. ;)

For more information:
http://qt-project.org/doc/qt-5.0/qtqml/qtqml-syntax-imports.html#qml-import-path

http://qt-project.org/doc/qt-5.0/qtqml/qtqml-modules-identifiedmodules.html