setting main application icon on windows

[JeanC]

I'm using qt on windows with mingw32-make.

I'm trying to set the main application icon in windows apps like documented in the help.

If I run 'rcc myapp.rc' I get 'RCC Parse Error: 'myapp.rc' Line: 1 Column: 2 [error occurred while parsing element]'
This is myapp.rc:

IDI_ICON1 ICON DISCARDABLE "myapp.ico"

If I don't use rcc and just try to add the 'RC_FILE=myapp.rc' I get the error 'no rule to make target myapp.rc needed by build/myapp_res.o'.

Now what is the correct way to set an application icon on windows please?

(ps. I wish windows builds would automatically add the default qt mainicon in stead so that 'empty' doswindow icon doesn't show up)

Thanks.

[aamer4yu]

If you are talking about Qt app on windows,
QApplication::setWindowIcon
or QWidget::setWindowIcon might help you

[JeanC]

Hi,


If you are talking about Qt app on windows,
QApplication::setWindowIcon
or QWidget::setWindowIcon might help you

Well these are runtime only. In explorer you will not see icons you set this way.
Thanks anyway.

[jpn]

If I run 'rcc myapp.rc' I get 'RCC Parse Error: 'myapp.rc' Line: 1 Column: 2 [error occurred while parsing element]'
RCC parses .qrc files, not .rc files.



This is myapp.rc:

IDI_ICON1 ICON DISCARDABLE "myapp.ico"

If I don't use rcc and just try to add the 'RC_FILE=myapp.rc' I get the error 'no rule to make target myapp.rc needed by build/myapp_res.o'.

Does the file name match? Is myapp.rc in correct folder?


Now what is the correct way to set an application icon on windows please?
You're very close. There must be a small mistake somewhere. Check that the path and file name matches and re-run qmake just to be sure.

[JeanC]

Hi jpn,


RCC parses .qrc files, not .rc files.


Yes, the docs talk about rc.exe but there is no rc.exe that I can find.



Does the file name match? Is myapp.rc in correct folder?


In the src folder like the help says.



You're very close. There must be a small mistake somewhere. Check that the path and file name matches and re-run qmake just to be sure.

I will try again as I get around to it, too busy ATM.

Edit: Just tried again, no succes.

The app is called 'cal', it's a calendar of sorts, cal.pro has a line 'RC_FILE = cal.rc' , theres a src/cal.ico and src/cal.rc which contains 'IDI_ICON1 ICON DISCARDABLE "cal.ico'.

running qmake gives no errors but there's no icon.
I must be doing something wrong still.

Thanks jpn.

[jpn]

Where is cal.pro? Unless it's also in src/, it should be "RC_FILE = src/cal.rc".

[JeanC]

Yes that was the solution. pf :)

Great.
Thanks again.

[marcelognunez]

Test if you have a space in some folder in your path to the project.
Example: D:\Lab\QtProjects\MyNotepad 1.0

This make that cannot recognize "windres"

Do the follow:
-Delete the pro.user file in your project root directory
-rename without spaces (Ex: D:\Lab\QtProjects\MyNotepad-1.0)
-in Qt Creator -> Open Project -> mynotepad.pro (following the example)
Compile and Voilé.... All ok!!

Try...