Rikcom School (Virtual Computer School)

Professional IT courses:

Practical Computer training:                                           Fees $USD

1. Certified Systems Administrator                                       150.00

2. Certified Network Administrator                                       150.00

3. Hardware Engineering                                                      100.00

4. Networking Engineering                                                    100.00

5. Computer Programming                                                   150.00

6. Advance Web Technologies                                             100.00

7. Ethical Certified Hacking                                                   300.00

8. Graphics                                                                            100.00

9. Online Marketing and Advertisement                               100.00

10. Microsoft office Software Packages                              50.00

11. V Satellite Technologies                                                 150.00

Free Computer Training Courses:

1. Basic Introduction to computing including typing

2. Kids Computing

3. Basic Microsoft Office (word, PowerPoint and Publisher)

4. Basic Introduction to the Internet

5. Basic Website designing

6. Basic Computer Hardware and Software

7. Basic Networking

8. Social Media

9. Working Online and making money online

10. Entrepreneurship

Course Description:

With the unstoppable and ever-increasing prevalence of ICT-technology and ICT-devices in every aspect of our lives, ICT has become one of the most rapidly evolving fields in this modern world, becoming vast and even more complex for users and experts alike. In this high level course participants will be made familiar with the concepts of ICT-Training.  Importantly, this course does not require technical IT-expertise.

Learning Objective: Upon completion of this course the participants will have the tools necessary to understand ICT-Infrastructure, Setup Computer Networks, Troubleshoot IT Problems, Develop Website, Develop Applications, Work from Home and Online, Setup your own IT Company, ETC

Target Audience:

This high level course is aimed mainly at Individuals, Students and Companies. Accordingly this course does not require IT-expertise.

Methodology:

The content of this course will be presented in a practical way, and will only include technical concepts to the extent where absolutely necessary. Practical examples and case studies will mainly be used in order to familiarize participants with the content of this course.

Enrolment Requirements:

The course has an open enrolment policy, thus no academic qualifications are needed. Since the language of delivery is English, appropriate English proficiency is recommended.

Certificate:

Upon successful completion of all courses (including the multiple choice tests), the student will be granted a certificate issued by RIKCOM SYSTEMS confirming the student successful completion of this course.

P.S ALL Courses are self- Parse

Enroll now and have access to all our free programs.

Scholarship and Special packages available for interested individuals

Call Us: 233208202908,233249356208,233232568899

Email: rikcomsystems@gmail.com

Follow us on twitter: @rikcom_systems

Like us on Facebook: http://facebook.com/rikcomsystems

Website:  www.rikcomschool.edu20.0rg

                                                                                   

Graphics Programming in Linux

This article covers some basics of graphics programming in C.

I was a very avid graphics programmer, using Turbo C (actually, using graphics.c, a library usually taught to engineering students during labs). Trying to push graphics.c to its limits, I got stuck with its very limited graphics functionality and maximum resolution. When I discussed this with a teacher, he introduced me to OpenGL. I tried a few programs, and got fascinated with the rich graphics experience and platform independence. I thought of sharing my experiences with graphics programming using OpenGL, and contacted the LFY editorial team members, who were ready to provide me a platform.

OpenGL basics
OpenGL (Open-source Graphics Library) has three major library header files: gl.h, glu.h and glut.h. The gl.h (graphics library) is a low-level header file, with which you can draw lines, polygons, colour the background or the line, etc. The glu.h (graphics library utility) is a medium-level header. It uses the lower-level OpenGL functions, such as matrices for specific viewing orientation, rendering surfaces, etc. The glut.h (graphics library utility tool-kit) is a high-level library file and a window system-independent tool-kit to hide the complexity of different window system APIs.

Installation
Now, we need a Linux-based OS (I use Kubuntu 11.10); a compiler (GCC); an editor (Kate, Gedit, Kwrite, etc); the OpenGL header files… and some basic knowledge of C programming.
Make sure your PC has an Internet connection. Open a terminal and run sudo apt-get install gcc, entering the password when prompted, to install GCC. Next, for the editor, run sudo apt-get install kate (or gedit, kwrite or whatever you prefer, instead of kate). For the OpenGL headers, run ‘sudo apt-get install freeglut3-dev.

The Hello World  first step
Now for the classic first-time program. Open the editor, and enter the following code:

#include<GL/glut.h> 

void main(int argc, char**argv) { 
    glutInit(&argc, argv); 
    glutInitWindowPosition(100,100); 
    glutInitWindowSize(500,500); 
    glutCreateWindow(“Hello World”); 
    glutMainLoop(); 
}

Save the file as basic.c, and to compile it, run gcc basic.c -l glut at the terminal. Run the compiled binary with ./a.out. Here, we have imported glut.h (in the GL folder). To locate it, run whereis GL and it will give you the installed location, like GL: /usr/include/GL. There are just five basic functions used to create a window for drawing. The first, glutInit(), initialises the display. Then glutInitWindowPosition (int x, int y) specifies the screen location (upper-left corner) of the window. Next, glutInitWindowSize(int x, int y) specifies the size of the window; glutCreateWindow(char *string) names the window for identification, and creates it; andGlutMainLoop() is used to display the window and begin event processing.
The compilation command specified -l glut, which means, a link with the glut library file. By default, GCC names the output compiled binary a.out; to change it, specify the -o (output file name) switch for example, gcc begin.c -l glut -o hello.
Change the background colour of a window
The OpenGL function glutDisplayFunc (void function_name) is used to specify a user function that will handle the display of a window. Let’s use this to change the colour of a window:

#include<GL/glut.h> 
#include<GL/gl.h> 
void display() { 
    glClearColor(1,0,0,0); 
    glClear(GL_COLOR_BUFFER_BIT); 
    glFlush(); 
} 
void main(int argc, char**argv) { 
    glutInit(&argc, argv); 
    glutInitWindowPosition(100,100); 
    glutInitWindowSize(500,500); 
    glutCreateWindow(“Hello World”); 
    glutDisplayFunc(display); 
    glutMainLoop(); 
}

Save it as basic2.c, compile and run it as in the earlier example.
The three GL functions we used to colour the window background are:
glClearColor(R, G, B, alpha): This is used to set the colour for a window. The numbers you can use for each colour are between 0 and 1; you can use float numbers like 0.1, 0.11, etc.
glClear(GL_COLOR_BUFFER_BIT): This clears the screen to the desired colour set by glClearColor.
glFlush() executes the commands to the screen rather than storing it in a buffer.
In the next part of the series, I plan to explore how to draw lines and triangles, and use keyboard inputs.

Acknowledgement 
I would like to thank Dr Brijesh Kumar for his help and guidance.

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