[SOLVED] changing image using keypress
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bq. hi..
After looking your code ...i think you are new to programming.are you?
you are defining the method inside another method .this is not the correct
way
just call ShowPicture("/home/dev6/Desktop/animation/2.gif");
then you will not face any error.
hope it helps[/quote]bq.i did like below. but getting errors.
@void ShowPicture(QString path)
{
QMovie *movie = new QMovie(path);
QLabel *processLabel = new QLabel(this);
ui->processLabel->setMovie(movie);
movie->start();ui->label1->setText(QString::fromUtf8("chennai சென்னை")); ui->label1->show();}
void Dialog::keyPressEvent(QKeyEvent *e)
{if(e->key() == Qt::Key_F3) { ShowPicture(”/home/dev6/Desktop/animation/2.gif”); }}@
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[quote author="IamSumit" date="1412144476"]Hi .
Can you show me your full code (including .h)?
and tell me what errors you are getting also?[/quote]
@#include "dialog.h"
#include "ui_dialog.h"
#include <QMovie>
#include <QImage>
#include <QFontDatabase>
#include <QDebug>
#include <QKeyEvent>Dialog::Dialog(QWidget *parent) :
QDialog(parent),
ui(new Ui::Dialog)
{
ui->setupUi(this);
}Dialog::~Dialog()
{
delete ui;
}void ShowPicture(QString path)
{
QMovie *movie = new QMovie(path);
QLabel *processLabel = new QLabel(this);
ui->processLabel->setMovie(movie);
movie->start();ui->label1->setText(QString::fromUtf8("chennai சென்னை")); ui->label1->show();}
void Dialog::keyPressEvent(QKeyEvent *e)
{if(e->key() == Qt::Key_F3) { ShowPicture(”/home/dev6/Desktop/animation/2.gif”); }}@
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ok.
ShowPicture(QString) is the member function/method of Dialog class.
i can't see proper definition of this method.
in line 21.
@
Replace void Dialog::ShowPicture(QString path)
@and in .h file declare this method as member.
in .h file. add this line
@
public:
void ShowPicture(QString path);
@and your oops basics are not clear.So, Please improve your basics first.
Hope it helps.
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Good day.
[quote author="IamSumit" date="1412164041"]What errors ?[/quote]@void Dialog::ShowPicture(QString path)
{
QMovie *movie = new QMovie(path);
QLabel *processLabel = new QLabel(this);
ui->processLabel->setMovie(movie);
movie->start();ui->label1->setText(QString::fromUtf8("chennai சென்னை")); ui->label1->show();}
void Dialog::keyPressEvent(QKeyEvent *e)
{if(e->key() == Qt::Key_F3) { ShowPicture(/home/dev6/Desktop/animation/2.gif); }}@
errors:
1. /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: invalid suffix "gif" on floating constant
2. * /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:-1: In member function 'void Dialog::ShowPicture(QString)':
1<* /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: expected primary-expression before '/' token2< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'home' was not declared in this scope
3< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'home' was not declared in this scope
4< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'Desktop' was not declared in this scope
5< /home/dev6/Desktop/animation-build-desktop-Qt_4_8_1_in_PATH__System__Release/../animation/dialog.cpp:70: error: 'animation' was not declared in this scope
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[quote author="IamSumit" date="1412585094"]Hi.
You are not passing a string .string always encloses " " quotes.
@
19.ShowPicture(/home/dev6/Desktop/animation/2.gif);
@
Correct it as .
ShowPicture("/home/dev6/Desktop/animation/2.gif");
[/quote]yes.. really i am so sorry.Thanks alot. great help.
