User contributions
13 July 2010
File:Iphone quartz draw line.jpg
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File:Iphone draw 2d uiview class change.jpg
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File:Iphone quartz 2d uiview subclass.jpg
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An iPhone Graphics Drawing Tutorial using Quartz 2D
Creating the UIView Subclass
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File:Iphone draw quad bezier curve.jpg
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File:Iphone quartz draw dashed line.jpg
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File:Iphone draw image full size2.jpg
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An iPhone Graphics Drawing Tutorial using Quartz 2D
Drawing an Image into a Graphics Context
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File:Iphone draw image full size.jpg
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File:Iphone draw image in rect.jpg
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An iPhone Graphics Drawing Tutorial using Quartz 2D
New page: As previously discussed in Drawing iPhone 2D Graphics with Quartz, the Quartz 2D API is the primary mechanism by which 2D drawing operations are performed within iPhone applications. H...
IPhone App Development Essentials
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+58
9 July 2010
CentOS Essentials
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File:Centos kvm command line install.jpg
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Installing a CentOS KVM Guest OS from the Command-line (virt-install)
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Installing a CentOS KVM Guest OS from the Command-line (virt-install)
New page: In the previous chapter we explored the creation of KVM guest operating systems on a CentOS host using the virt-manager graphical tool. Whilst this graphical tool does much to ease the vir...
CentOS Essentials
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+85
7 July 2010
IPhone App Development Essentials
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+383
Drawing iPhone 2D Graphics with Quartz
New page: The ability to draw two dimensional graphics on the iPhone is provided as part of the Core Graphics Framework in the form of the Quartz 2D API. Quartz on the iPhone is the same implementat...
IPhone App Development Essentials
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6 July 2010
CentOS Essentials
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Creating a CentOS KVM Virtual Machine
Starting the Virtual Machine Manager
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File:Centos kvm virt-manager.png
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Installing KVM Virtualization on CentOS
Verifying the KVM Installation
File:Centos kvm windows 7 running.jpg
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File:Centos kvm vm running.jpg
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File:Centos kvm cpu memory.jpg
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File:Centos kvm network.jpg
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File:Centos kvm storage.jpg
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File:Centos kvm media and os type.jpg
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Creating a CentOS KVM Virtual Machine
New page: KVM based virtual machines can easily be configured on CentOS using either the virt-install command-line tool, or the virt-manager GUI tool. For the purposes of this chapter we will use th...
CentOS Essentials
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2 July 2010
CentOS Essentials
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File:Centos kvm shared network device.jpg
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File:Centos kvm virt-manager.jpg
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Installing KVM Virtualization on CentOS
Verifying the KVM Installation
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Installing KVM Virtualization on CentOS
New page: As discussed in previous chapters of this book, virtualization is the ability to run multiple operating systems simultaneously on a single computer system, and a number of different commer...
CentOS Essentials
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1 July 2010
CentOS Essentials
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File:Centos network installation stage2 download.jpg
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File:Centos network installation select server.jpg
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File:Centos network installation tcpip config.jpg
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File:Centos network installation method.jpg
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Performing a CentOS Network Installation
New page: In addition to installing directly from the physical CentOS installation media (in the form of a CDROM or DVD) it is also possible to perform a network based CentOS installation whereby th...
CentOS Essentials
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30 June 2010
CentOS Essentials
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Managing Xen on CentOS using the xm and virsh Command-line Tools
Migrating a Domain to a Different Host
Managing Xen on CentOS using the xm and virsh Command-line Tools
Migrating a Domain to a Different Host
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Managing Xen on CentOS using the xm and virsh Command-line Tools
Migrating a Domain to a Different Host
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Managing Xen on CentOS using the xm and virsh Command-line Tools
New page: In previous chapters we have covered the steps necessary to install and configure Xen and Xen based guest operating systems. This chapter is dedicated to explaining the xm and virsh tools,...