Just to make it easier for anyone who is reading this thread in the
archives:
At the moment the library you need is libxrandr (on Ubuntu install with
apt install libxrandr-dev), and read the man page Xrandr.
It is also useful to read the paper describing Xrandr protocol:
Zbigniew writes:
> No, dear Volodya,
>
>„The DisplayHeight macro returns the height of the specified screen
> in
>pixels.
>
>The DisplayWidth macro returns the width of the screen in pixels.”
>
> This is what I want, and this is what — as „man” page states — I
> should
On Wed, 30 Aug 2023 18:27:12 +0200 Zbigniew said:
Perhaps you should share your use case on why you need to know the screen size
when there are far better mechanisms to handle this?
But below is a list of why changing these are not sane/possible etc.
1. You cannot change the way
On 2023-08-30, Zbigniew wrote:
>„The DisplayHeight macro returns the height of the specified screen
> in
>pixels.
>
>The DisplayWidth macro returns the width of the screen in pixels.”
>
> This is what I want, and this is what — as „man” page states — I
> should get,
On Wed, 30 Aug 2023, Zbigniew wrote:
What you want is to find out the width and height of physical screen you
have.
Indeed. That's what DisplayWidth and DisplayHeight functions have been
created for.
To do that you need to use the subsystem that manages them - which
is xrandr. And don't
> What you want is to find out the width and height of physical screen you
> have.
Indeed. That's what DisplayWidth and DisplayHeight functions have been
created for.
> To do that you need to use the subsystem that manages them - which
> is xrandr. And don't forget to specify which of 5 screen
On Wed, 30 Aug 2023, Zbigniew wrote:
So I would expect (in my particular case) to get 1920 and 1200 values,
and NOT dimensions of virtual screen, I mean 2520 and 1575
The behavior prescribed for these macros is to return the width and
height of the screen, and doesn't provide for the
>>> Are you making reference to DisplayWidth and DisplayHeight, or
>>> DisplayWidthMM and DisplayHeightMM?
>>
>> Talking about DisplayWidth and DisplayHeight functions.
>>
>>> And please explain which X extension supplies your ``virtual
>>> screen'' functionality
>>
>> It's done like this:
>>
Zbigniew writes:
>> Are you making reference to DisplayWidth and DisplayHeight, or
>> DisplayWidthMM and DisplayHeightMM?
>
> Talking about DisplayWidth and DisplayHeight functions.
>
>> And please explain which X extension supplies your ``virtual
>> screen'' functionality
>
> It's done like
> Are you making reference to DisplayWidth and DisplayHeight, or
> DisplayWidthMM and DisplayHeightMM?
Talking about DisplayWidth and DisplayHeight functions.
> And please explain which X extension supplies your ``virtual screen''
> functionality
It's done like this:
xrandr --output DVI-0
10 matches
Mail list logo
