<![CDATA[[Resolved] How can I set the focus on my application at startup]]>Hi There,

I am trying to start an app on linux (or even windows) that when run should have focus and hide the mouse. My program does this ok until I hide the mouse... when I hide the mouse the app no longer gets focus!

Here is the code:

@
#include <QApplication>
#include <QThread>
#include <stdlib.h>

int main(int argc, char *argv[])
{
// Create the app
QApplication app(argc, argv);

// Hide the pointer - IF I UN-COMMENT THIS I LOSE FOCUS AT STARTUP.
//app.setOverrideCursor( QCursor( Qt::BlankCursor ) );

// Create main window
MainWindow *window = new MainWindow;

// Set up the UI and execute the App
window->show();
app.exec&#40;&#41;;

// tidy up
delete(window);
return 0;

}
@

You can see my comment where if I un-comment my code to hide the mouse then when the app starts it does not have focus....

What do I need to do here?
Thanks

]]>https://forum.qt.io/topic/34747/resolved-how-can-i-set-the-focus-on-my-application-at-startupRSS for NodeMon, 11 May 2026 11:37:01 GMTTue, 26 Nov 2013 14:53:30 GMT60<![CDATA[Reply to [Resolved] How can I set the focus on my application at startup on Wed, 04 Dec 2013 19:45:12 GMT]]>I hope it solved your problem. Anyway, did you check the "Paint Touch" (or something like that) demo that comes with Qt 4.81? The're basically implementig a classic Paint for touch devices, I'm pretty sure there was no mouse in there, so you may want to look at it.

]]>https://forum.qt.io/post/206281https://forum.qt.io/post/206281Wed, 04 Dec 2013 19:45:12 GMT<![CDATA[Reply to [Resolved] How can I set the focus on my application at startup on Wed, 04 Dec 2013 07:24:20 GMT]]>Hi There,

Yes, I did try something like this, but it did not work for me in all cases. It works if I make a PC app and run it on the PC, perhaps as you have done as well, but it somehow fails to work on my embedded touch screen app.

I am starting to figure that it may be a difference of the OS/Touchscreen.

I ended up having to use:
@
#include <QWSServer>
:
QApplication app(argc, argv);
QWSServer::setCursorVisible(false);
@
in main.cpp just after my app is created. I wanted to avoid bringing in more libraries, but I was un-able to get to the route of the cause :(

Still, this works nicely, seems to be a "more powerful" way of controlling the mouse (and other QWS things which I have not yet looked at).

]]>https://forum.qt.io/post/206179https://forum.qt.io/post/206179Wed, 04 Dec 2013 07:24:20 GMT<![CDATA[Reply to [Resolved] How can I set the focus on my application at startup on Tue, 03 Dec 2013 00:11:46 GMT]]>What if you just call the next code in your MainWindow constructor:
@setCursor(Qt::BlankCursor);@

I've just tested it and It worked fine, with no focus lost. Have you tried this already? :)

]]>https://forum.qt.io/post/206014https://forum.qt.io/post/206014Tue, 03 Dec 2013 00:11:46 GMT