Is a cross-platform application framework that is widely used for developing application software with a graphical user interface (GUI) (in which cases Qt is classified as a widget toolkit), and also used for developing non-GUI programs such as command-line tools and consoles for servers.

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GDAL Application crashes when loading GDAL drivers

I'm developing on QT an application that uses GDAL library (which I compiled using MinGW 4.8). When I use the application on my windows 8 laptop, it works fine, but when I tried using it on several ...
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1answer
36 views

How to bind attributes to a Qt custom form?

I have followed this helpful post on creating a custom form. I have named the Qt objects the same as the fields in my attribute table. I have also set the edit widget properties to text edit for the ...
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1answer
123 views

Qt/C++ Hello World application with QGIS not compiled: qgsconfig.h not found

I am a Qt/C++ developer. I have to create a GUI application (Qt/C++) with GIS maps. I'm trying to do that using QGIS. I'm working in Linux Ubuntu with Qt Creator 2.4.1 (based on Qt 4.8.0). I did the ...
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1answer
131 views

How to show a QGis map in Qt/C++ custom widget with QgsMapCanvas?

I'm trying to add a QGis map in Qt/C++ widget using QgsMapCanvas, but I have some problems... I'm working with the following environment: - Ubuntu 12.04 - QGis 2.8.1 - Qt Creator 2.4.1 (based on Qt ...
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1answer
104 views

Problems with connecting QDateEdit and QTimeEdit widgets to corresponding Field in QGIS Layer (shp/spatialite)

Could anybody give me a hint how to connect the QDateEdit and the QTimeEdit widgets with a field in a QGIS layer (shp or spatialite). The fields in the QGIS layers are from datatype "date" ...
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1answer
182 views

Duplicate values in combobox in QT Designer form

I have a custom form created with QT Designer on which I have several comboboxes among other stuff. All the fields have the correct names corresponding to the database. But something weird and ...
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1answer
270 views

Pull pixmap image source from ui edit text in QT

I'm putting together a custom form for QGIS identify using Qt Designer. One attribute has a file name to the accompanying photo of the feature. I'd like to have the photo label in the form grab the ...
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0answers
52 views

How to actually add the path to a file conatining a photo on a QT form using QGis/Postgis/Postgress

Simple newbie question as I have just designed my first QT form, after a frustrating afternoon search unsucessfully for the answer, help please. I have a spatial table in postgress, loaded into QGis, ...
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0answers
201 views

qgis and embedded ajax (bing map)

I need to load in a docked QWebView this html: < html > < body > < iframe width="100%" height="499" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" ...
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0answers
385 views

Setup of development environment of QGIS on windows with qt creator

Can anyone help me in setting up environment for working on QGIS on windows using qt-creator? I am using qt creator version 1.3.1,qt version 4.6 and QGIS version 1.8. Thanks.
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42 views

How to define a custom function that returns value of a field in an unsaved form

Filter expression builder in QGIS 2.8 allows us to define custom functions using python. I'm intrested would it be possible to define a function which returns a value of a field in an unsaved form ...
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37 views

use qgis api in qtcreator

i have a college project that searches content in map. I did all instruction written in this site: http://kartoza.com/how-to-build-and-debug-qgis-with-qtcreator then built my sample project. this is ...
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0answers
58 views

How to pull data from multiple databases via Qt .ui form?

Using a single .ui form and wthin QGIS, can I show multiple records from another table that is associated with a single polygon? Table 1 contains planning applications ref Table 2 contains multiple ...
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0answers
21 views

C++ Get Capabilities from a WFS

To start off with: Coding in C++ Using the QT Creator Reading from WFS Version 1.1.0 Using Gdal/OGR compiled with Xerces Hi all so I'm trying to get all of the Capabilities from a WFS. I know how ...
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0answers
41 views

QGIS MapCanvas with Round Border

I have a canvas within a QWidget (also tried QFrame) which uses a stylesheet: border: 2px solid black; border-radius: 10px; The stylesheet looks great in the designer, but as soon as I put the ...
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0answers
85 views

QGIS Project: where to put CORE_Export definition in Visual studio 2010

I am trying to develop a QGIS application with the following setup: OSGE4W qgis Libs QT 4.8.5 Windows 7 Visual Studio 2010 I have all the references setup in VS, but am not sure where define the ...
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0answers
43 views

How to change the attribute values of the feature using the custom feature form

When i am using the following command it opens the feature form with all the fields: qgis.utils.iface.openFeatureForm(qgis.utils.iface.activeLayer(), f) But i want to open a feature form with the ...
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0answers
187 views

With QGIS, why use QT Designer tools for creating Slots/Signals/ etc, if plugin coding can do it alone

I am curious why there is facility within QT Designer to create signals and slots as, to my surprise, I did not need to do this. All of the necessary coding was accomplished completely within the ...
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0answers
50 views

How to find QGIS or QT or Python object definitions

I am attempting a simple plugin, on QGIS 2.6, using the available QT Designer installed I have successfully loaded a plugin, and can display a dialog box with widgets, within, and now attacking ...
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0answers
177 views

How to create a spatial view when allowing multiple selection in qgis’s edit widget “value relation”?

I've a point layer in qgis and serveral non spatial tables in a spatialite database. In qgis the fields were filled using the edit widget "value relation" (multiple selection allowed for some fields). ...
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0answers
304 views

ArcGIS (ArcObjects) Windows 7 - 64 bit -support

I have been developing with ArcGIS Cross Platform C++ SDK (with Qt 4.8.2) on 32 bit Windows XP SP3 (development machine). I used to use MapTool Control within ArcObjects on the development machine. ...
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15 views

Showing an Overview map with the ArcGIS C++ QT Runtime

I am using the Esri ArcGIS QT API for C++ and trying to create an overview map for my application as found here: Multiple maps - https://developers.arcgis.com/qt/cpp/guide/multiple-maps.htm I am ...
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0answers
50 views

Use QGIS and Qt dialog forms

I have a QGIS project where there are plots with a attributes like name of the owner, address of the owner, cultivate, and so on. This plots are read from a PostGIS database. The future users of this ...
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60 views

How to make a QT form modal in QGIS

I have created a form in QT (ui) and I have configured the properties of a layer (fields) at edit ui. The form is called from QGIS as non-modal but I need it to be called as Modal. Is there a ...
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44 views

How to create custom input widget using Plugin builder?

I am trying to develop a plugin that takes in user input for the time, using the QGIS plugin builder. However, I want to specify the different times the user is allowed to select from when the plugin ...
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0answers
96 views

How to best get Qt Designer for QGIS plugin development on Mac?

I'm using QGIS 2.6.1 on Mac OSX 10.9.4, trying to create a plugin as described in the PyQGIS Programmer's Guide. I have the plugin 'skeleton' (main widget with header and ok/cancel buttons) running in ...
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0answers
62 views

Syntax Error in qgsapplication file

I am trying to test an QGIS application code example. However, when I try to compile it, it is reporting errors in qgsapplication.h which is coming with the source code of QGIS. I am using QTCreator ...
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0answers
132 views

QGIS custom form and autocompleted data entering with “validation check”

In Qt-Designer I created a custom form where I can choose serveral species names in two different combo boxes. This combo boxes are linked via "value relation" to the accordant non spatial tables ...
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0answers
720 views

Trying to make QT + QGIS working

I'm mostly a Java programmer, I worked on C++ many years ago, and knowing this my project manager has asked me to create a little app in Qt that can open a shape file, using QGIS. But I'm encountering ...