Unsolved Program crashes when trying to change label text from another class.
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Hi,
I'm building a simple program, where a push button is clicked, it changes text of label, but the thing is, the program works fine when I write code in MainWindow.cpp , i.e the file where code is autogenerated for ui. But, the program crashes, when I try to call a function from another class, and try to change text from that class.
The following way works.
MainWindow.cpp
void MainWindow::on_pushButton_1_clicked() { ui->stackedWidget->setCurrentIndex(1); ui->myLabel->setText("This works!"); }
But, when I try to call a function and try to manipulate the label from inside of that function, the program crashes.
The following way doesn't work.
void MainWindow::on_pushButton_1_clicked() { ui->stackedWidget->setCurrentIndex(1); gamePlay *play= new gamePlay(); play.playGame(); }
Inside another class.
void gamePlay::playGame() { ui->myLabel->setText("This does not work!"); }
The program doesn't crash when I try to call the empty function, but when I try to change text of label, it crashes.
I have included all MainWindow header files in gamePlay header files, but it still doesn't work. What am I missing? Please let me know.
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@johnAdams said in Program crashes when trying to change label text from another class.:
but when I try to change text of label, it crashes.
Was ui initialised in gamePlay?