c# axacropdf example: Sign pdf form reader application software utility azure html winforms visual studio HTML5_QML_Comparison

3.2 Functional comparison

browser-extension. When using the QML it is a plugin which is plugged into the QML

runtime environment (see subsection 2.3.2).

A Qt C

object which is to be used by QML and/or QtWebKit has to be a QObject

derived class. Within this class, properties dened using the Q

PROPERTY() macro and

member functions dened as ‘public slots’ will be available to the runtime as properties

and functions respectively. In appendix D, the sourcecode used to give storage access to

both QtWebKit and QML can be found. The code used is almost the same except for the

dierence in linebreak characters between QML and HTML.

To give a webpage access to the methods dened in the Qt C++ browser extension a

reference to its class has to be passed to the webpage global JavaScript object. This is

done using the QWebFrame::addToJavaScriptWindowObject(const QString &name, QOb-

ject *object) method. Once this method has been called, an object with the name specied

in &name is available on the webpage.

Since for every webpage the global JavaScript object is cleared, the addToJavaScriptWin-

dowObject(...) should be called every time a new page is loaded. To accomplish this, a

signal and a slot are required.

connect(page()->mainFrame(), SIGNAL(javaScriptWindowObjectCleared()),

this, SLOT(addBrowserExtension()));

The javaScriptWindowObjectCleared() signal is emitted by a QWebFrame automatically

when the JavaScript window object is cleared. This in turn calls our own addBrowserEx-

tension() slot.

void Browser::addBrowserExtension()

{

page()->mainFrame()->addToJavaScriptWindowObject(

"StorageHandler", m_sh);

}

The only thing that this slot does, is re-adding our Qt C

object back to the loaded

webpage. In this manner all pages loaded using this web browser will have access to the

functions dened in the ‘StorageHandler’ class.

The C

object has to be added as a QML type to a plugin to be available within the QML

runtime. In subsection 2.3.2 more information can be found on how to accomplish this.

The other option to have storage access is by using a HTTP REST application service. This

is basically a server which can be accessed using the JavaScript XmlHttpRequest API. All

storage requests from an application will be handled by this server. Building an application

using the XmlHttpRequest API has the advantage that the server can be both on the device

or elsewhere.

Sign pdf form reader - extract form data from PDF in C#.net, ASP.NET, MVC, Ajax, WPF

Help to Read and Extract Field Data from PDF with a Convenient C# Solution

extract data from pdf file; how to fill out a pdf form with reader

Sign pdf form reader - VB.NET PDF Form Data Read library: extract form data from PDF in vb.net, ASP.NET, MVC, Ajax, WPF

Convenient VB.NET Solution to Read and Extract Field Data from PDF

exporting pdf form to excel; how to flatten a pdf form in reader

3. COMPARISON

3.3 Performance comparison

The memory tests used the applications described section 3.1. The source code for these

applications can be found in G. All these tests were carried out on both an Nokia N900

and a Linux Maemo SDK virtual machine (Ubuntu 9.04-based) running with 6-cores and

6GiB of memory enabled on a machine with a hyper-threaded quad-core Intel Core i7-920

CPU and 8 GiB of memory installed. The host-OS was Windows 7 Ultimate x64. Sev-

eral Qt versions were used for testing, the most recent being commit e43ab8d8 from the

4.7-fremantle branch of the public x11-maemo git repository dated 10 May 2010. There

were no signicant dierences between the Qt versions used (less than 100K dierence in

memory usage).

The memory performance with QtWebKit was tested using the browser for which the source

code can be found in appendices A and B. QML memory performance was tested with the

QML runtime executable. Both runtime applications were run using the \-graphicssystem

raster" command-line option. Audio did not work on the N900 with the Qt version used,

therefore the memory performance results while playing back audio on the N900 were omit-

ted.

Memory usage in kilobytes.

QtWebKit-PC

QtWebKit-N900

QML-PC

QML-N900

190864

85076

67988

78604

Contacts

191300

94232

78424

89004

Player - loading

225636

121276

Player - playing

226056

121692

Looking at the table above and gure 3.13 a big memory gap between QML and QtWebKit

can be seen on the desktop, on the N900 however, this memory gap is much smaller, from

more than double on the PC to less than 10% more on the N900. No explanation for this

behaviour could be given. Other interesting facts are the increase of memory for QML on

the N900 over QML on the desktop and the dierence in memory needed to play a media

le between QtWebKit and QML. Both technologies use the same media playing backend,

but still the memory increase is around 50 megabytes when using QML and around 30

megabytes when using QtWebKit.

The speed performance for QtWebKit was tested in the same browser as the memory

performance. For QML a special runtime was developed which implements functionality for

speed performance measurement. Source code for this runtime can be found in appendices

Aand C.

Iused the test applications for which the source code can be found in appendix H. These

test applications display a rotating green rectangle which should run at a maximum speed

of 60 FPS (frames per second). This 60 FPS limit was enforced by forcing the video driver

of the test PCs to use vertical synchronization with a display that had a maximum refresh

rate of 60 Hz.

C# WinForms Viewer: Load, View, Convert, Annotate and Edit PDF

PDF Protection. • Sign PDF document with signature. To view, convert, edit, process, protect, sign PDF files, please refer to XDoc.PDF SDK for .NET overview.

vb extract data from pdf; how to type into a pdf form in reader

C# WPF Viewer: Load, View, Convert, Annotate and Edit PDF

View PDF outlines. Related Resources. To view, convert, edit, process, protect, sign PDF files, please refer to XDoc.PDF SDK for .NET overview.

how to fill pdf form in reader; java read pdf form fields

3.3 Performance comparison

��

Figure 3.13: Memory performance graph - Graph showing the memory usage of QtWebKit

and QML on the desktop and N900.

These tests have however been run on Windows 7 Ultimate (the host OS of the virtual

machine), the Linux Virtual Machine, a Nokia N900 and Mac OS X 10.6.3 (MacBook

Pro 2.4GHz Core2Duo with 4GiB memory). This has been done to see if there are big

performance dierences between the dierent platforms. The \-graphicssystem raster"

command-line option has been used in all cases.

Maximum frames per second.

QtWebKit

QML

Linux

Mac OS X

N900

Windows 7

Because the maximum FPS was forced to be 60 it is not possible to say if there was a

problem with QtWebKit on Windows which caused the QtWebKit application to be so

much slower than all other versions, or that Qt itself is slower on Windows than on the

other platforms.

QML is faster in all cases, but this might be partly due to the abscence of anti-aliasing.

In gure 3.14 it is clearly visible that QtWebKit applies anti-aliasing, while QML does not.

There are no options to enable or disable the anti-aliasing in either of the technologies. It

is hard to say which technology is the best option due to this aliasing behaviour. In general

C# PDF Digital Signature Library: add, remove, update PDF digital

Form Process. Data: Read, Extract Field Data. Data: Auto Fill-in Field Data. Field: Insert, Delete, Update Field. Use C# Demo to Sign Your PDF Document.

extract table data from pdf; exporting data from pdf to excel

C# HTML5 Viewer: Load, View, Convert, Annotate and Edit PDF

HTML5 Viewer for C# .NET. Related Resources. To view, convert, edit, process, protect, sign PDF files, please refer to XDoc.PDF SDK for .NET overview.

pdf form save with reader; online form pdf output

3. COMPARISON

Figure 3.14: Aliasing in QML and QtWebKit - Screenshot of the performance testing

applications where the aliasing behaviour of the technologies is clearly visible.

the resolutions on smartphone displays is so high that it is hard to see the aliasing artifacts,

which is in favor of QML. In this case, where the contrast between the background and

foreground is big, the aliasing artifacts were clearly visible even on the N900 800x480 pixel

screen.

The test application used is very simple. It only measures frames per second and not the

actual time spent on painting, CPU usage, etc. This application could be extended to draw

multiple rectangles to see if the performance drops linearly. The used Qt version can also

be extended to be able to prole the actual paint commands, to see how much time is

spent on the actual painting, but this is an exercise for the reader.

C# HTML5 Viewer: Load, View, Convert, Annotate and Edit Word

users can convert Convert Microsoft Office Word to searchable PDF online, create To view, convert, edit, process, built, sign Word documents, please refer to

how to fill out pdf forms in reader; how to save filled out pdf form in reader

VB.NET PDF Digital Signature Library: add, remove, update PDF

Link: Edit URL. Bookmark: Edit Bookmark. Metadata: Edit, Delete Metadata. Form Process. Use VB.NET Demo to Sign Your PDF Document. Add necessary references:

save pdf forms in reader; how to extract data from pdf file using java

Conclusion

This report has given an overview of the similarities and dierences between QML and

HTML5 to help to answer the question: Which of QML/JavaScript or HTML5/JavaScript

is a better technology for developing mobile User Interface applications?. This comparison

has been done on several areas, like animation support, code reuseability and memory con-

sumption.

In most areas QtWebKit and QML provide similar functionality. These functionalities are

implemented slightly dierent, but in general they are similar. Functionalities which are

dierent are the animation support, context switching and object placement. QML has a

lot more options with regards to animations, including the mixing of sequential and parallel

animations and the support for states. These are very important aspects in modern mo-

bile application development which are a big lacking factor when using HTML. The object

placement in QML is dierent in such that the objects are not resized automatically, but

this gives the developer more control over how the objects are laid out. In HTML the

layout consists mostly of nested boxes which can have undened sizes if their contents do

not t porperly. Context switching in QML is more elaborate with switching the source on

aLoader-element. This does however add the possibility to use animations when switching

from one context to the next. This is hard to do using HTML.

Performance-wise QML might be the better choice on processor and memory constrained

devices. The interface rendering speed is higher, partly at the cost of aliasing artifacts, and

less memory is used by the runtime.

All in all QML is denitely the better choice for mobile use interface development, the per-

formance is better and more options geared towards application development are available.

In some use cases where a developer has experience with HTML and the interface is not

highly animated, HTML might be a better choice, but QML is the better choice in all other

cases.

How to C#: Set Image Thumbnail in C#.NET

VB.NET How-to, VB.NET PDF, VB.NET Word, VB.NET Excel, VB.NET PowerPoint, VB.NET Tiff Add a new Form Item to the project, and choose to design mode sign.

how to make pdf editable form reader; extract data from pdf file to excel

How to C#: Quick to Start Using XImage.Raster

project’s reference. Add a new Form Item to the project, and choose to design mode sign. Make the ToolBox view show. Right click

html form output to pdf; collect data from pdf forms

XDoc.HTML5 Viewer for .NET, Zero Footprint AJAX Document Image

View, Convert, Edit, Sign Documents and Images. We are dedicated to provide powerful & profession imaging controls, PDF document, image to pdf files and

sign pdf form reader; extract data from pdf form

How to C#: Create a Winforms Control

VB.NET How-to, VB.NET PDF, VB.NET Word, VB.NET Excel, VB.NET PowerPoint, VB.NET Tiff Add a new Form Item to the project, and choose to design mode sign.

export pdf data to excel; edit pdf form in reader

Glossary

API

Application Programming Interface.

An interface dened by a software pro-

gram to enable the program to inter-

act with other software programs. An

API is also dened to specify calling

conventions a developer using this pro-

gram should use to develop his own

program,

Application service An external software applica-

tion that handles communication with

other applications. An example is a

webserver.

HTML

Hyper Text Markup Language. The

language used to create webpages.

HTML5

Version 5 of HTML which is still in

draft as of April 2010. Added func-

tionalities compared to earlier versions

include local storage and media play-

back functionalities.

HTTP REST HyperText Transfer Protocol Rep-

resentational State Transfer. A soft-

ware architecture style which is used

for the internet. REST denes several

constraints to which a system has to

comply to be called RESTful.

JavaScript A programming language which is

used on webpages in combination with

HTML and CSS.

JSON

JavaScript Object Notation. A docu-

ment markup language which can be

easily read by JavaScript.

Kano Model A model developed in 1984 by Pro-

fessor Noriaki Kano classifying cus-

tomer preferences

Linux

An Operating System kernel. Most of-

ten Linux means the kernel with the

GNUtools to form theGNU/LinuxOp-

erating System.

Maemo

Nokia’s newest Linux-based smart-

phone operating system.

QML

Qt declarative Markup Language. A

JSON like markup language to used to

develop Qt declarative interfaces.

qmldir le A le containing the location of les to

be loaded by theQML runtime dynam-

ically.

A cross-platform application develop-

ment toolkit developed by Nokia Qt

Development Frameworks.

QtWebKit A part of Qt which adds WebKit with

added Qt functionality to the toolkit.

Signal-Slot mechanism A mechanism within the

Qt Toolkit which allows objects to

communicate with one another.

Smartphone A large-screen, data-centric, hand-

held device designed to oer complete

phone functions whilst simultaneously

functioning as a personal digital assis-

tant (PDA)

SVG

Scalable Vector Graphics. An open

XML-format used for vector graphics.

Toolkit

A collection of tools which simplies

software development.

WebKit

A web rendering engine. Originally a

fork of KHTML which was developed

by the KDE project.

WRT

Web RunTime. A Nokia framework

for developing mobile applications for

Nokia devices.

XML

eXtensible Markup Language. A set of

rules to digitally encode documents.

References

[1] Clutter About. World Wide Webelectronic publication. Available

from: http://www.clutter-project.org/. 2

[2] The Home oftheMaemo Community. WorldWide Webelectronic

publication. Available from: http://maemo.org/intro/. 1

[3] InternetHistory. WorldWideWebelectronicpublication. Available

from: http://www.computerhistory.org/internet_history/. 9

[4] Maemobackground. WorldWideWebelectronicpublication.Avail-

able from: http://maemo.nokia.com/maemo/. 1

[5] Maemofeatures.WorldWide Webelectronicpublication. Available

from: http://maemo.nokia.com/features/. 2

[6] OpenGL ES Overview. World Wide Web electronic publication.

Availablefrom: http://www.khronos.org/opengles/. 4

[7] Telepathy the Flexible Communications Framework. World Wide

Web electronic publication. Available from: http://telepathy.

freedesktop.org/. 4

[8] Template:Release historytable.WorldWideWebelectronicpublica-

tion.Availablefrom: http://wiki.maemo.org/Template:Release_

history_table. 1

[9] WhatisGStreamer? WorldWideWebelectronicpublication.Avail-

able from: http://gstreamer.freedesktop.org/. 3

[10] OS 2008 Features.

World Wide Web electronic publication,

2008.Availablefrom: http://europe.nokia.com/find-products/

devices/os2008/features. 2

[11] Our software strategy. World Wide Web electronic publication,

2009. Available from: http://phx.corporate-ir.net/External.

File?item=UGFyZW50SUQ9MjQxMzB8Q2hpbGRJRD0tMXxUeXBlPTM=

&t=1. xi

[12] Tim Berners-Lee. HTML Tags. World Wide Web electronic

publication, 1991. Available from: http://www.w3.org/History/

19921103-hypertext/hypertext/WWW/MarkUp/Tags.html. 9

[13] Tim Berners-Lee.

Re: status. Re: X11 BROWSER for

WWW. World Wide Web electronic publication, 1991. Avail-

able from: http://lists.w3.org/Archives/Public/www-talk/

1991SepOct/0003.html. 9

[14] Tim Berners-Lee. How It All Started. World Wide Web elec-

tronicpublication,2004.Availablefrom:http://www.w3.org/2004/

Talks/w3c10-HowItAllStarted/. 9

[15] Jo Best.

Analysis: What is a smart phone?

World

Wide Web electronic publication, 2006.

Available from:

http://www.silicon.com/technology/mobile/2006/02/13/

analysis-what-is-a-smart-phone-39156391/. 1

[16] Jasmin Blanchette and Mark Summerfield. C++ GUI Pro-

grammingwith Qt 4, chapter A Brief History of Qt. PrenticeHall,

2006. 7

[17] BertBos. WebStyle Sheets. WorldWideWebelectronicpublica-

tion. Availablefrom: http://www.w3.org/Style/. 10

[18] VannevarBush.AsWeMayThink.AthlanticMonthly,July1945,

1945. 9

[19] Stephen Chapman. A Brief History of Javascript. World Wide

Web electronic publication. Available from: http://javascript.

about.com/od/reference/a/history.htm. 13

[20] LinuxDevices. Device Prole: Nokia 770InternetTablet. World

Wide Web electronic publication, 2005. Available from: http://

www.linuxfordevices.com/c/a/Linux-For-Devices-Articles/

Device-Profile-Nokia-770-Internet-Tablet/. 1

[21] Linux Devices.

Nokia 770 Tablet \OS 2006" arrives.

World Wide Web

electronic publication, 2006.

Avail-

able

from:

http://www.linuxfordevices.com/c/a/News/

Nokia-770-Tablet-OS-2006-arrives/. 1

[22] Linux Devices.

New Nokia N800 Internet Tablet avail-

able now.

World Wide Web electronic publication, 2007.

Available from:

http://www.linuxfordevices.com/c/a/News/

New-Nokia-N800-Internet-Tablet-available-now/. 1

[23] Douglas Engelbart. Augmenting Human Intellect: A Con-

ceptual Framework.

World Wide Web electronic publication,

1962. Available from: http://www.invisiblerevolution.net/

engelbart/full_62_paper_augm_hum_int.html. 9

[24] Nokia Qt Development Frameworks. Faster, More Cost-

Eective Development Using the Qt Cross-Platform Application

& UIFramework. Whitepaper,2009. 7

[25] Nokia Qt Development Frameworks. All Qt Modules. World

Wide Web electronic publication, 2010. Available from: http:

//doc.trolltech.com/4.6/modules.html. 8

[26] Nokia Qt Development Frameworks. Build System. World

Wide Web electronic publication, 2010. Available from: http:

//doc.trolltech.com/4.6/qt4-intro.html#build-system. 8

[27] Nokia Qt Development Frameworks. Recent Additions to

Qt 4.

World Wide Web electronic publication, 2010. Avail-

able from:

http://doc.trolltech.com/4.6/qt4-intro.html#

recent-additions-to-qt-4. 8

[28] QuimGil.MaemoHarmattanQtAndMore.WorldWideWebelec-

tronicpublication,2009. Availablefrom: http://www.slideshare.

net/qgil/maemo-harmattan-qt-and-more. 2, 4

[29] Web Design Group. CSS Structure and Rules. World Wide

Webelectronicpublication. Availablefrom: http://htmlhelp.com/

reference/css/structure.html. 11

[30] Kent Hansen. Qt State Machine Framework. World Wide Web

electronic publication, 2009. Available from: http://labs.qt.

nokia.com/blogs/2009/01/30/qt-state-machine-framework/.

[31] Andreas Aardal Hanssen. Welcome to Kinetic. World Wide

Web electronic publication, 2008. Available from: http://labs.

trolltech.com/blogs/2008/11/06/welcome-to-kinetic/. 11

REFERENCES

[32] Andreas Aardal Hanssen.

Animated Tiles.

World Wide

Web electronic publication, 2009. Available from: http://labs.

trolltech.com/blogs/2009/03/04/animated-tiles/. 11

[33] Ian Hickson. Web Storage. World Wide Web electronic pub-

lication, 2009.

Available from: http://www.w3.org/TR/2009/

WD-webstorage-20091222/. 32

[34] Gartner Inc. Gartner Says Grey-Market Sales and Destock-

ing Drive Worldwide Mobile Phone Sales to 309 Million Units;

Smartphone Sales Grew 13 Per Cent in Third Quarter of 2009.

World Wide Web electronic publication, 2009. Available from:

http://www.gartner.com/it/page.jsp?id=1224645. xi

[35] Noriaki Kano, Nobuhiku Seraku, Fumio Takahashi, and

Shinichi Tsuji. Attractive quality andmust-be quality. Journal of

theJapanese Society forQuality Control,14:39{48, 1984. 4,5

[36] Paul Krill.

JavaScript creator ponders past, future.

World Wide Web electronic publication, 2008.

Available

from:

http://www.infoworld.com/d/developer-world/

javascript-creator-ponders-past-future-704. 13

[37] Jan-Arve Sther. Anchor layout joins the family of QGraph-

icsLayout.

World Wide Web electronic publication, 2009.

Available from: http://labs.trolltech.com/blogs/2009/11/26/

anchor-layout-joins-the-family-of-qgraphicslayout/. 11

[38] QtDeclarativeTeam. QtDeclarativeUI. WorldWideWebelec-

tronicpublication,2009. Available from: http://labs.trolltech.

com/blogs/2009/05/13/qt-declarative-ui/. 11

[39] The GTK+ Team. The GTK+ Project Overview. World Wide

Webelectronicpublication,2007. Availablefrom: http://www.gtk.

org/overview.html. 3

[40] TheGStreamerteamathttp://gstreamer.freedesktop.org/.

gst-launch-0.10(1) - Linux man page. World Wide Webelectronic

publication.

Available from:

http://linux.die.net/man/1/

gst-launch-0.10. 3

[41] thoughtfix. OS2008 \Diablo" update: A pictorial. World

Wide Web electronic publication, 2008. Available from: http:

//tabletblog.com/2008/06/os2008-diablo-update-pictorial.

html. 2

[42] Iago Toral. MAFW: the Media Application Framework for

Maemo. World Wide Web electronic publication, 2009. Available

from: http://www.grancanariadesktopsummit.org/node/219. 4

[43] Judy van Biljon, Paula Kotze, and Karen Renaud. Mobile

phone usage of youngadults: the impactof motivational factors.

In Proceedings of the 20th Australasian Conference on Computer-

HumanInteraction: DesigningforHabitusandHabitat,pages57{64,

2008. 4,5

[44] Don Wells. Extreme Programming: A gentle introduction.

World Wide Web electronic publication, 2009. Available from:

http://www.extremeprogramming.org/. xv

[45] Nathan Willis. Maemo 5, N900 Centerpiece Maemo Sum-

mit 2009. World Wide Web electronic publication, 2009. Avail-

able from: http://www.linux.com/news/embedded-mobile/mids/

147172-maemo-5-n900-centerpiece-maemo-summit-2009. 2

Documents you may be interested

c# axacropdf example : Sign pdf form reader application software utility azure html winforms visual studio HTML5_QML_Comparison_redist5-part1113