Am working on the project in which am required to fetch files from the server and to display them on the client post.All of this is to be done in the UNIX environment where I used C language for coding client and server and GTK+ for the interface which will display files in the PDF format.
My problem is I do not know how can I intergrate a PDF viewer in such interface.
As the final results I would like when I select the file and click GTKbutton it displays the file in a PDF format in that intergrated viewer.
Check out the EvView and EvDocument libraries. They are not too well documented but it's a GTK widget for displaying PDFs and other documents.
I have seen references to all three of these applications on various parts of the Qt website but am completely unclear as to the exact differences between them and whether they are actually separate things or just different names for the same thing, or the name changed over time? Or is one no longer supported? What's the deal with these?
Qt Creator is Qt's IDE. You don't have to use it, but it greatly simplifies Qt development.
Qt Designer is a graphical tool that lets you build QWidget GUIs. Qt Quick Designer is similar, but for building QML GUIs. Both are built in to Qt Creator.
This is explained in a little more detail over at Wikipedia.
I will explain to you the difference between these tools by the approach for what they are used:
Qt Designer: Sub tool used to create/edit widget files (.ui). You can use it to create the graphical layouts (.ui files only). The most use is to design the graphical stuff in PyQt apps. It is installed always when you install Qt, for example it is in the path: Qt5.13.1\5.13.1\mingw73_64\bin\designer.exe. It also be used to edit any .ui file of a Qt C++ application, however it is very limited since only allows to edit the graphical stuff (not C++ logic).
Qt Quick Designer (it refers to Qt Creator): It does not exist, it is integrated in Qt Creator (see below). Is normal to say that Qt Quick Designer allows to edit QML files (.qml), however it is integrated in Qt Creator now.
Qt Creator: This is the so defacto and most powerfull IDE to create QT applications natively (C++ with Qt engine). It allows you to create, edit source code, debug applications, etc. In addition to that, yo can open a .ui file or a .qml file in Qt Creator and it will open and allow you to edit. For example if you open an .ui file it will show you the Qt Designer app embedded in the full integrated Qt Creator IDE. In summary, you can use Qt Creator to open/edit any .ui or .qml file and create Qt/C++ applications. Of course, if the file is .ui then Qt Creator will show you the Qt Designer tool, if it is .qml then it will allow you to edit the QML.
Qt Creator is just an IDE used to build QT applications; both Qt Widgets and Qt Quick can be composed. When writing Qt Widgets applications you can edit your GUI in Qt Designer but in case of Qt Quick applications you use Qt Quick Designer, both integrated into Qt Creator.
Also there is this new tool name Qt Design Studio which uses QML too and can integrate with Photoshop.
Easy way : Qt Creator (Editor with intellisence, autocomplete and Manual, etc + Graphical designer + Debug symbols + templates.) all for you...
Medium way : Qt Creator (Editor without designer, handcoding, intellisence, autocomplete, etc).
Medium-hard way : Any plain text editor + Qt Designer (to prototype your interface). This is my favorite way, I like Vim
Hard way : Any plain text editor..... you know.
I am using adobe flash builder 4.6. using fileReference.save(), we can create files. But it prompts a dialogue box for the location. Can we define it in the code and avoid prompt box. Is there any other method for doing file operations?
That's not possible from Flex/Flash Player. If you want to operate on the file system, you have to switch to AIR.
I would like to create and app using Qt which will use custom files. The app will be available on Windows, OS X and Linux.
The idea is to have a custom icon for my file type (e.g. when you install Adobe's Master Collection, .as, .fla, .ps, etc. files have they own icons).
As far as I know Qt only helps you with app icon. I did not find any kind of support for this kind of problem.
This seems to be an OS problem. Do I need to create scripts to run on app install? (I will be using Bitrock's install builder to provide installers)
How can I achive this behaviour on all OSs?
I try to use the example from Adobe help reference as following address:
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/mx/controls/Tree.html#includeExamplesSummary
I open FlashDevelop IDE, creat a new Flex 3 project, then copy the code of example to the main.mxml, save it, then run builder.
It failed with "...\TreeExample\TreeExample\src\Main.mxml(5): Error: Could not resolve <s:Application> to a component implementation." error message.
There is a "How to use this example" link beside this example, but I didn't find any useful information I want.
How can I run this example in FlashDevelop IDE?
It seems, that you try to compile component from newer Flex sdk with older one (3.x instead of 4.x)
Download newest from Adobe site:
http://opensource.adobe.com/wiki/display/flexsdk/Flex+SDK
And install it to Flash Develop:
http://www.flashdevelop.org/wikidocs/index.php?title=AS3