Here is a rapid prototype app I just put together which might be of interest to some people.
Basically, I have parsed the data from a Chinese web site which is tracking the Wuhan coronavirus, and cache that data every minute via a local cron file and make a simple API available to a Blink app. ... (6 Replies)
This post describes a "work in progress" project I started today. Here is the High Level Overview:
Currently, this project sits on my desk as an Arduino UNO (on the bottom), an NB-IoT Shield (sandwiched in the middle), a Sensor Shield (on top) with a HM-10 BLE Module (in the little... (13 Replies)
hi,
i want to start developing an ios app that can be used on iphone and ipad. can anyone guide me how to start? i saw that it can be developed only on a mac system.. but i dont have a mac system. i have an ipad 4 and a laptop with windows os? can i use one of these to start developing ios app??... (4 Replies)
Hi folks,
i have a problem with my /app directory on solaris 10.It is mounted under rpool root and sometimes it increase dimension bringing root out of space.I want to mount /app under different position, maybe under secondary hardisk for which i have created a mount point with zfs pool...How... (10 Replies)
The guys at SunGard want to charge a lot of $$$$ for installing Luminis and we are trying to see if this can be done without them. Their installation guide provided page #53 ( http://www.luminis.nocccd.edu/documents/Luminis%20IV/lp40000in.pdf ) doesn't really tell you much. All they say is that... (4 Replies)
pods::SDL::Tutorial(3pm) User Contributed Perl Documentation pods::SDL::Tutorial(3pm)NAME
SDL::Tutorial - introduction to Perl SDL
CATEGORY
Tutorials
SYNOPSIS
# to read this tutorial
$ perldoc SDL::Tutorial
# to run this tutorial
$ perl -MSDL::Tutorial -e 1
SDL Manual
"SDL::Tutorial" are incomplete and old. A new book has been started to provide a complete tutorial for SDL. See <http://bit.ly/hvxc9V>.
SDL BASICS
SDL, the Simple DirectMedia Layer, is a cross-platform multimedia library. These are the Perl 5 bindings. You can find out more about SDL
at <http://www.libsdl.org/>. You can find out more about SDL perl at <http://sdl.perl.org>.
Creating an SDL application with Perl is easy. You have to know a few basics, though. Here's how to get up and running as quickly as
possible.
Surfaces
All graphics in SDL live on a surface. You'll need at least one. That's what SDLx::App provides.
Of course, before you can get a surface, you need to initialize your video mode. SDL gives you several options, including whether to run
in a window or take over the full screen, the size of the window, the bit depth of your colors, and whether to use hardware acceleration.
For now, we'll build something really simple.
Initialization
SDLx::App makes it easy to initialize video and create a surface. Here's how to ask for a windowed surface with 640x480x16 resolution:
use SDLx::App;
my $app = SDLx::App->new(
width => 640,
height => 480,
depth => 16,
);
You can get more creative, especially if you use the "title" and "icon" attributes in a windowed application. Here's how to set the window
title of the application to "My SDL Program":
use SDLx::App;
my $app = SDLx::App->new(
height => 640,
width => 480,
depth => 16,
title => 'My SDL Program',
);
Setting an icon is a little more involved -- you have to load an image onto a surface. That's a bit more complicated, but see the "name"
parameter to "SDL::Surface-"new()> if you want to skip ahead.
Working With The App
Since $app from the code above is just an SDL surface with some extra sugar, it behaves much like SDL::Surface. In particular, the all-
important "blit" and "update" methods work. You'll need to create SDL::Rect objects representing sources of graphics to draw onto the
$app's surface, "blit" them there, then "update" the $app.
Note: "blitting" is copying a chunk of memory from one place to another.
That, however, is another tutorial.
SEE ALSO
SDL::Tutorial::Animation
basic rectangle drawing and animation
SDL::Tutorial::LunarLander
basic image loading and animation
AUTHORS
chromatic, <chromatic@wgz.org>.
Written for and maintained by the Perl SDL project, <http://sdl.perl.org/>. See "AUTHORS" in SDL for details.
COPYRIGHT
Copyright (c) 2003 - 2004, chromatic. 2009 - 2010, kthakore. All rights reserved. This module is distributed under the same terms as Perl
itself, in the hope that it is useful but certainly under no guarantee.
perl v5.14.2 2012-05-28 pods::SDL::Tutorial(3pm)