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i am new to opengl , how to work opengl in ubuntu
Post 302349140 by Ravikishore on Monday 31st of August 2009 07:58:40 AM
08-31-2009
Hi Sir,
I worked with c programs in ubuntu for openGL,,, now im trying to execute the c++ programs for openGL ,,,, while compiling its showing error message as
root@lxdevenv:/usr/include/GL# g++ -c -I$QTDIR/include ravvv.cpp
ravvv.cpp:1:18: error: kapp.h: No such file or directory
ravvv.cpp:2:24: error: qwidget.h: No such file or directory
ravvv.cpp:3:75: error: qpainter.h: No such file or directory
ravvv.cpp:4:23: error: qimage.h: No such file or directory
ravvv.cpp:7: error: expected class-name before ‘{’ token
ravvv.cpp:8: error: expected `}' at end of input
ravvv.cpp:8: error: expected unqualified-id at end of input
root@lxdevenv:/usr/include/GL#
and my code is
#include <kapp.h>
#include <qwidget.h>
#include <qpainter.h> // The QPainter class draws graphics on widgets.
#include <qimage.h>
class MyWindow : public QWidget
{
public:
// Constructor for the window, just call the QWidget constructor
MyWindow() : QWidget() { }
protected:
void paintEvent(QPaintEvent *);
};
// This function is called when the window area must be updated.
// Load and view the image
void MyWindow:
aintEvent(QPaintEvent *ev)
{
// Load the image that we want to show
QImage image;
if (image.load("test.jpg", 0)) // If the image was loaded,
{ // Show the image.
// Draw graphics in this window
QPainter paint(this);
// Draw the image we loaded on the window
paint.drawImage(0, 0, image, 0, 0,
image.width(), image.height());
}
}
int main(int argc, char **argv)
{
KApplication app(argc, argv)
// Create the window
MyWindow window;
app.setMainWidget(&window);
window.setCaption("ImageIO Example");
window.setGeometry(100,100,300,300);
window.show();
return app.exec();
}
guide me ..it will appreciated ....
I worked with c programs in ubuntu for openGL,,, now im trying to execute the c++ programs for openGL ,,,, while compiling its showing error message as
root@lxdevenv:/usr/include/GL# g++ -c -I$QTDIR/include ravvv.cpp
ravvv.cpp:1:18: error: kapp.h: No such file or directory
ravvv.cpp:2:24: error: qwidget.h: No such file or directory
ravvv.cpp:3:75: error: qpainter.h: No such file or directory
ravvv.cpp:4:23: error: qimage.h: No such file or directory
ravvv.cpp:7: error: expected class-name before ‘{’ token
ravvv.cpp:8: error: expected `}' at end of input
ravvv.cpp:8: error: expected unqualified-id at end of input
root@lxdevenv:/usr/include/GL#
and my code is
#include <kapp.h>
#include <qwidget.h>
#include <qpainter.h> // The QPainter class draws graphics on widgets.
#include <qimage.h>
class MyWindow : public QWidget
{
public:
// Constructor for the window, just call the QWidget constructor
MyWindow() : QWidget() { }
protected:
void paintEvent(QPaintEvent *);
};
// This function is called when the window area must be updated.
// Load and view the image
void MyWindow:
aintEvent(QPaintEvent *ev){
// Load the image that we want to show
QImage image;
if (image.load("test.jpg", 0)) // If the image was loaded,
{ // Show the image.
// Draw graphics in this window
QPainter paint(this);
// Draw the image we loaded on the window
paint.drawImage(0, 0, image, 0, 0,
image.width(), image.height());
}
}
int main(int argc, char **argv)
{
KApplication app(argc, argv)
// Create the window
MyWindow window;
app.setMainWidget(&window);
window.setCaption("ImageIO Example");
window.setGeometry(100,100,300,300);
window.show();
return app.exec();
}
guide me ..it will appreciated ....
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LEARN ABOUT DEBIAN
ubuntu-build
UBUNTU-BUILD(1) General Commands Manual UBUNTU-BUILD(1) NAME
ubuntu-build - command-line interface to Launchpad build operations SYNOPSIS
ubuntu-build <srcpackage> <release> <operation> DESCRIPTION
ubuntu-build provides a command line interface to the Launchpad build operations. OPERATIONS
Listed below are the available operations for ubuntu-build: status Outputs the build status of the package on Launchpad on all architectures. retry Requests that the package has another attempt at rebuilding from source. This will only work if the package has Failed to build on Launchpad. rescore Requests that the package's build priority be raised in the build queue. Only members of the Launchpad build administrators may issue this operation, and it may only be performed on packages which Need building. OPTIONS
Listed below are the command line options for ubuntu-build: -h or --help Display a help message and exit. Retry and rescore options: These options may only be used with the 'retry' and 'rescore' operations. -a ARCHITECTURE, --arch=ARCHITECTURE Rebuild or rescore a specific architecture. Valid architectures include: amd64, sparc, powerpc, i386, armel, armhf, ia64, lpia, hppa. Batch processing: These options and parameter ordering is only available in --batch mode. Usage: ubuntu-build --batch [options] <package>... --batch Enable batch mode --series=SERIES Selects the Ubuntu series to operate on (default: current development series) --retry Retry builds (give-back). --rescore=PRIORITY Rescore builds to <priority>. --arch2=ARCHITECTURE Affect only 'architecture' (can be used several times). Valid architectures are: amd64, sparc, powerpc, i386, armel, armhf, ia64, lpia, hppa. AUTHORS
ubuntu-build was written by Martin Pitt <martin.pitt@canonical.com>, and this manual page was written by Jonathan Patrick Davies <jpds@ubuntu.com>. Both are released under the terms of the GNU General Public License, version 3 or (at your option) any later version. ubuntu-dev-tools June 2010 UBUNTU-BUILD(1)