Window that does not appear in taskbar and can't alt tab on

[reonZ]

I would like to Create a window that has all the normal properties of a QMainWindow but would not appear in the taskbar and that you can not alt tab over.

[hskoglund]

Hi, you can use the old ToolWindow style, to try, create an empty vanilla Widget app, add this to the .pro file:

LIBS += -luser32

Then change mainwindow.cpp to this:

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "Windows.h"

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    HWND hWnd = reinterpret_cast<HWND>(winId());
    LONG_PTR exStyle = GetWindowLongPtr(hWnd,GWL_EXSTYLE);
    SetWindowLongPtr(hWnd,GWL_EXSTYLE,exStyle | WS_EX_TOOLWINDOW);

}

MainWindow::~MainWindow()
{
    delete ui;
}

[reonZ]

@hskoglund I see, it gives the same result as doing setWindowFlag(Qt::Tool).

[hskoglund]

Yes you're right, didn't know about that flag. Also easier than have to #include "windows.h" etc.

Anyways, hope that this ToolWindow style is what you're looking for.

[reonZ]

@hskoglund It seems to be working quite well.