[Qgis-developer] Problems with developing custom c++ qgis application with QtCreator and MSVC2008 on Windows

Mon Nov 24 23:47:28 PST 2014

To write QGIS C++ plugin see : http://download.osgeo.org/qgis/doc/manual/qgis-1.1.0_coding-compilation_guide_en.pdf (2.2 Programming a QGIS C++ Plugin in four steps)
And you can find some C++ plugin examples here: https://github.com/qgis/QGIS-Code-Examples and https://github.com/qgis/QGIS-Code-Examples/tree/master/4_adding_rasters_to_canvas

Regards,
Nejia

-----Message d'origine-----
De : qgis-developer-bounces at lists.osgeo.org [mailto:qgis-developer-bounces at lists.osgeo.org] De la part de eliu1234
Envoyé : lundi 24 novembre 2014 17:52
À : qgis-developer at lists.osgeo.org
Objet : Re: [Qgis-developer] Problems with developing custom c++ qgis application with QtCreator and MSVC2008 on Windows

QgisInterface  is an abstract class. How are you initializing it? Or do you just declare it and add a raster layer directly? Because from that link, I see the addRasterLayer method is a pure virtual function and QgisInterface is abstract class. I want to add this layer into a QgsMapCanvas, how should I do that?

Also, is it possible for you to test my code before to see if it works on your system? 
QgsRasterLayer * rlayer = new
QgsRasterLayer("http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer?f=json&pretty=true","raster");
qDebug() << rlayer->isValid();

Nejia wrote
> QgisInterface  *m_ptInterface;
> See
> http://qgis.org/api/2.6/classQgisInterface.html#a808a34b507a8c4204d607
> a5857d62748
> 
> Regards,
> Nejia
> 
> -----Message d'origine-----
> De : 

> qgis-developer-bounces at .osgeo

>  [mailto:

> qgis-developer-bounces at .osgeo

> ] De la part de eliu1234
> Envoyé : vendredi 21 novembre 2014 21:36 À :

> qgis-developer at .osgeo

> Objet : Re: [Qgis-developer] Problems with developing custom c++ qgis 
> application with QtCreator and MSVC2008 on Windows
> 
> What is the m_ptInterface in your code?
> 
> 
> Nejia wrote
>> I use the same environment of Qgis to write c++ plugins:
>> http://htmlpreview.github.io/?https://raw.github.com/qgis/QGIS/master
>> /
>> doc/INSTALL.html#toc14
>> 
>> to add raster layer:
>> m_ptInterface->addRasterLayer("http://server.arcgisonline.com/ArcGIS/
>> r est/services/World_Imagery/MapServer?f=json&pretty=true","raster");
>> 
>> Regards,
>> Nejia
>> 
>> -----Message d'origine-----
>> De : 
> 
>> qgis-developer-bounces at .osgeo
> 
>>  [mailto:
> 
>> qgis-developer-bounces at .osgeo
> 
>> ] De la part de eliu1234
>> Envoyé : jeudi 20 novembre 2014 21:40 À :
> 
>> qgis-developer at .osgeo
> 
>> Objet : Re: [Qgis-developer] Problems with developing custom c++ qgis 
>> application with QtCreator and MSVC2008 on Windows
>> 
>> Do you have a system setup that can write qgis c++ application? If 
>> you do, can you create a valid raster layer from that?
>> 
>> 
>> Nejia wrote
>>> 1- see my response here
>>> http://stackoverflow.com/questions/26920574/cannot-find-qgsapplicati
>>> o
>>> n
>>> -h-and
>>> -other-header-files/27035138#27035138
>>> 
>>> -----Message d'origine-----
>>> De : 
>> 
>>> qgis-developer-bounces at .osgeo
>> 
>>> [mailto:
>> 
>>> qgis-developer-bounces at .osgeo
>> 
>>> ] De la part de eliu1234
>>> Envoyé : mercredi 19 novembre 2014 17:39 À :
>> 
>>> qgis-developer at .osgeo
>> 
>>> Objet : Re: [Qgis-developer] Problems with developing custom c++ 
>>> qgis application with QtCreator and MSVC2008 on Windows
>>> 
>>> 1. So in the .proj file, what do i need to change?
>>> 
>>> 2. My Python works in this case, it is the C++ part that is not working. 
>>> 
>>> 
>>> Nejia wrote
>>>> Hi,
>>>> 
>>>> 1- QGIS and Qt libraries shipped with Osgeo4W are compiled using 
>>>> release mode so if you want to debug your application you can use 
>>>> RelWithDebInfo mode.
>>>> 2- see:
>>>> http://gis.stackexchange.com/questions/120823/how-to-load-a-wms-lay
>>>> e
>>>> r
>>>> -
>>>> using-
>>>> pyqgis
>>>> http://ieqgis.wordpress.com/2014/08/09/adding-esris-online-world-im
>>>> a
>>>> g
>>>> e
>>>> ry-dat
>>>> aset-to-qgis/
>>>> 
>>>> Cheers
>>>> Nejia
>>> 
>>> 
>>> 
>>> 
>>> 
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