I've been doing a fun project using a trial verion of QT Creator (QT 5.9). The trial ended, is there any way of continuing the work? I have heard of an open source verion of QT libraries. How do I use them? For example in visual studio 2017? Is there any sort of a replecemnt for QT in creating a window applications?
Answering your first and most important question: An open source package of Qt is available under the terms of LGPLv3, also for Windows. The Qt licensing page, where you'll also find links to advanced topics, states:
The Qt open source licensing is ideal for use cases such as open source projects with open source distribution, student/academic purposes, hobby projects, internal research projects without external distribution, or other projects where all (L)GPL obligations can be met.
Related
I want to make small programs for my father company(small company).I want to make his life easier by making small programs for everything he needs(mostly DATABASE MANAGMENT or SCHEDULE MANAGEMENT).I want to program in c++ using visual studio and qt for user interface. But I only have the community visual studio edition and the free qt edition. I am allowed to make programs for his company even thought I didn't buy those software?(qt and visual studio)
Note:The programs will only be used by him! not by his employees.
First, please note that this is a technical forum, not a legal forum.
Anyway here are some elements to think about:
Qt
Qt is available for free under the LGPLv3 or the GPLv3. That means that you can do whatever you want with Qt as long as you comply either with one or the other.
GPL
In practice, it means that if you distribute the application you must also distribute your source code.
LGPLv3
If you distribute the application, you must provide a way for end users to relink against a modified version of Qt. If you use dynamic linking it simply means that the user shall be able to change the Qt dll (or .so) files. But you have to keep in mind that not all Qt modules are available under LGPL, some are published only under the GPL. (https://www.qt.io/licensing-comparison/)
For your case, it seems that you are not going to distribute the application so you do not really care.
Visual Studio Community
On the website we have:
For organizations
An unlimited number of users within an organization
can use Visual Studio Community for the following scenarios: in a
classroom learning environment, for academic research, or for
contributing to open source projects.
For all other usage scenarios:
In non-enterprise organizations, up to five users can use Visual
Studio Community. In enterprise organizations (meaning those with >250
PCs or >$1 Million US Dollars in annual revenue), no use is permitted
beyond the open source, academic research, and classroom learning
environment scenarios described above.
So basically either you must make your apps open source or your father's company should not have more than 250 PCs or make more that 1 million $ a year.
If you are not illegible your could use:
IDE:
Visual Studio Express (but does not support Qt plugins and the 2017 version is not available)
Qt Creator
any IDE that support qmake or cmake projects
Compiler
MinGW (provided in the Qt Online installer)
Visual C/C++ compiler (provided as part of Visual Studio or as a standalone as "Build Tools for Visual Studio")
I've created an application in C++ using Visual Studio 2010 as my IDE. I used the QT plugin for Visual Studio to create my GUI and also use the VTK and OpenCV libraries. What is the simplest way to deploy my application? I've already tried pasting the DLLs for QT, VTK, and OpenCV in my exe folder and, although this runs on other computers, the formatting and program speed are wildly different than what I get on my computer.
So, you have 2 possible ways:
Static deploy.
Shared deploy.
Description both of them you can find here
As i see the shared deploy is too difficult for you, because you're using heavy libraries.
So, my advice is that satic deploy will be better :)
Please, try to build Qt, libs, and your app static, and we'll see how it will works.
I made a game in C++, using Visual Studio 2010. For this game I'm using OpenGL and GLUT, IrrKlang, ODE and fltk (so a buch of libs and dlls). I also have a folder of sounds and some text files. All paths are relative and my application works well from the environment (both debug and release modes). The exe files won't work though.
How do I make an installer kit for my application? My solution includes two projects.
I've done this before with XNA projects, but now it's completely different. Please do not refer me to msdn because I've been there.
Thanks!
First you should decide on a setup authoring tool. Here is a list that can get you started: http://en.wikipedia.org/wiki/List_of_installation_software
After that, try creating an installer with that tool. Most of them have tutorials and documentation which may help. If you encounter problems, you can then ask more specific questions.
I've been writing C/C++ for years using Xcode and am very comfortable with *nix systems. Now I'm working with people who only understand Windows; I've decided to try to learn that environment too.
I was thinking that google would be my best friend, but even the terminology for VS is sufficiently orthogonal to that of Xcode that I can't make any headway. (E.g., what's the equivalent of "Add new Target to project" for VS?)
Can anyone point me to a guide to VS for Xcode practitioners? I've seen lots of translators going the other direction.
Thanks!
I do not know of any XCode to VS Guide, but according to XCode Documentation:
A target specifies a product to build and contains the instructions for building the product from a set of files in a project or workspace.
The analogous concept in Visual Studio would be a project. In Visual Studio, a project contains code files, assets and settings which compile into an output of some sort. (Could be an executable, a DLL, a website, or a few other options...) Projects can reference other projects or other external libraries (System or user libraries) which are all delivered together at compile time.
A solution contains multiple projects which can be related (referenced) and compiled and linked together.
When you first start VS, it will ask you to Open or Create a project. It usually will automatically create a solution and automatically add the project to it. To add additional projects, you can right click the solution in the "Solution Explorer" and add another project.
Hope this helps
I believe what you're looking for is the Build Configuration Manager in Visual Studio. (It's been a while since I've used XCode). As I recall a "Target" in Xcode is how you want the project built. In VS you get a Debug and Release configuration by default but you can use the Build menu and choose "Configuration..." to create more.
I don't know of a tutorial for XCode users but Kate Gregory has some nice beginner screencasts on pluralsight for using Visual Studio 2010. Those may get you over some learning curve hurdles. I think they have a 30 day free trial. If you move on to .NET development they have a lot more that can really help you get up to speed quickly.
Quick Terminology
In Visual Studio you typically create a Solution. A solution can consist of any number of Projects. You can add projects for .DLLs (libraries), services, applications (gui and console based). You can have multiple applications but can only designate one as the Startup Project.
In my typical project I start with the GUI and Add a project of the type I want. Then I often add a library project for new code that I think I can use across multiple applications. Existing code in both supplied libraries and ones you've built are added as References. You can right-click on References in the Solution Explorer and select Add References.
In XCode (when I used it) your IDE consisted of two pieces, XCode and Interface Builder. In Visual Studio you can build interface elements directly in Visual Studio ( but there is also a tool called Blend that allows for UI creation and modification). There are THREE major types of interfaces web (usually an ASP.NET application), WinForms and WPF. I think of WinForms as the equivalent of what you build in IB. WPF is the most recent addition and has lots of advantages but a somewhat steep learning curve.
This is probably oversimplified because VS does so much and I'm mostly familiar with the C# and C++/CLI capabilties. However it also supports Visual F#, Iron Python, Iron Ruby, Visual Basic, Sharepoint, Office Integration,Silverlight, XNA, etc.
Visual Studio is very extensible. There are lots of extensions to make it integrate with other tools. There are also a couple of extremely useful extensions that make refactoring and writing code easier, my personal favorite is ReSharper from JetBrains.
I am pretty new to programming. I would like to download an open source project and build it in my Microsoft Visual Studio 2008. In fact, I tried to import and build the application WinSCP:
https://sourceforge.net/projects/winscp/
But I didn’t work. Please can somebody help me and tell me which files do I have to download (from sourceforge) and how to import these into Microsoft Visual Studio in order to build the application. Thank you a lot. David
WinSCP seems to be written in Borland C++ Builder or whatever it's called today. It's not a standard C++ program and wouldn't compile in any other compiler because it uses special features only present in BCB. (It uses Delphi-style components, VCL and thus the __property keyword.)
Unfortunately, a lot of Open Source projects have very poor support for Microsoft's development tools. One project that comes to mind as being not too big and having workable MSVC project files is FreeType2, but that's a library and not an application, which probably makes it not very interesting for toying around with.
In support forum of winscp, they say, that you can't compile this project in Visual Studio.
Winscp appears to be a CPP project using a makefile instead of a sln file. VS uses SLN and *proj files to control builds and such. A good way to start would be to open VS, create a new console project (and solution) and go through some tutorials online.
If you really want to just see how a large project works in VS, grab something like IronRuby or IronPython or even something like the Witty twitter client.
In the general case, it is not possible to pour the C++ sources of a program into Visual Studio and expect it to work. C++ programming environments are far too different between operating systems for that. If you have a open-source program which builds and runs fine on Linux (for example), it may need several weeks (or months) or programming effort to make it run on Windows.