Developing a tablet based qt application in windows platform. As per our requirement need to fix the application to landscape mode but not able to fix that. We were using QMainWindow.
Referred few links to fix the issue but didn't worked.
Reference1 , Reference2 : Tried by overriding functions.
Reference3 : Also tried this in our qt application, but not worked.
Below code is our sample code:
mainwindow.h
#include <QMainWindow>
#include <QDebug>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = nullptr);
~MainWindow();
int heightForWidth(int w) const;
QSize sizeHint() const;
private:
Ui::MainWindow *ui;
};
main.cpp
#include "mainwindow.h"
#include <QApplication>
#include <QVBoxLayout>
#include <QDebug>
#include "windows.h"
#include "qt_windows.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
// typedef BOOL (WINAPI* SETAUTOROTATION)(BOOL bEnable);
// SETAUTOROTATION SetAutoRotation = (SETAUTOROTATION)GetProcAddress(GetModuleHandle(TEXT("user32.dll")),
// (LPCSTR)2507);
// if (SetAutoRotation != nullptr)
// {
// qDebug() << "bEnable: " << SetAutoRotation;
// SetAutoRotation(FALSE);
// }
// qDebug() << "bEnable: " << SetAutoRotation;
MainWindow w;
w.showMaximized();
w.show();
return a.exec();
}
mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "windows.h"
#include "qt_windows.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
QSizePolicy currPolicy = this->sizePolicy();
currPolicy.setHeightForWidth(true);
this->setSizePolicy(currPolicy);
ui->setupUi(this);
}
MainWindow::~MainWindow()
{
delete ui;
}
int MainWindow::heightForWidth(int w) const
{
return (w * 240 )/320;
}
QSize MainWindow::sizeHint() const
{
int w = 1366;
return QSize(w, heightForWidth(w) );
}
Can anyone help me on fixing this. Please let me know if am doing anything wrong in above code.
