On Fri, 8 Sep 2023, Zbigniew wrote:
If you are doing this for open source project, you should change your code
to:
[..]
The code you've pasted doesn't work properly; it returns the size of
virtual screen — so you added 3x as much lines to get, in effect, the
same (incorrect) result as the few lines I pasted.
Oh, and no I don't actually know what you mean, because it depends on what
application you are writing.
Whatever it could be — an useful tool, or a silly game, open-source,
or commercial — it needs to find out the exact physical screen's
dimensions (in pixels), to learn how big is the working area.
Oh, I see. I suggest you try writing some concrete code - learning this in
abstract can be tricky. Don't be afraid to rewrite it from scratch a few
times. There is existing source code from X examples and tools, as well as
other libraries, such as gtk and Qt.
best
Vladimir Dergachev
If you do teleconferencing, you might want to capture either the entire
screen, or some window.
If you want to record a movie of a game playing fullscreen, than you
probably need the position and dimensions of the game window, because
games often change video mode while keeping original virtual screen
intact.
If you want to make a better Xvnc, you probably need the code above and
you might not need xrandr.
If you are doing something else - who knows what you mean ?
So now you see (I hope that you see): „if… if… if… if… else…” etc. A
whole lot of checks and decisions that could be avoided, _IF_ the two
macros were working properly
--
best,
Teenager
