• If I start Houdini with window size smaller than display dimensions, I can maximize it. However after this, I can no longer restore its unmaximized size, and if I resize it down manually, maximization will no longer work in that session. Hitting maximize button, invoking maximization from window's menu, keyboard shortcut corresponding to this action, double-clicking the title bar --- none of them will have any effect on H19 window. I have to resort to manual resizing it.
  
• If I start Houdini with a maximized window, I am able to maximize and restore its size without problems for the whole duration of the session.
  

The only issue is the popup menus, and menu highlighting has the offset issue.

But now on Windows 10 and CentOS, I don't have any of these issues on my ASUS laptop. So not sure if H19 also improved on this.

#!/bin/sh
# Toggle fullscreen mode of the focused window.
title=$(xdotool getwindowfocus getwindowname)
identity=$(wmctrl -l | grep "$title" | awk '{ print $1 }')
wmctrl -i -r "$identity" -b toggle,fullscreen

animatrix_
Fullscreen is a must for immersive experience but also to maximize screen estate. So many people are using houdini on a laptop.

animatrix_
This is what i suspected as well. The problem is to get that value programmatically and even then i can only fix the offset in the network editor coordinates but not the ones in the popup menu or highlighting.

I think this should be trivial for SESI to fix so I hope they do it.

Fullscreen is a must for immersive experience but also to maximize screen estate. So many people are using houdini on a laptop.

animatrix_
I created a hotkey for it, it's available in Python HOM:

def fullscreenSession():
    window = hou.qt.mainWindow()
    if window.isFullScreen():
        window.showNormal()
    else:
        window.showFullScreen()

    hou.ui.setHideAllMinimizedStowbars(window.isFullScreen())

ajz3d

animatrix_
This is what i suspected as well. The problem is to get that value programmatically and even then i can only fix the offset in the network editor coordinates but not the ones in the popup menu or highlighting.

I think this should be trivial for SESI to fix so I hope they do it.

Fullscreen is a must for immersive experience but also to maximize screen estate. So many people are using houdini on a laptop.

I agree, SideFX should really look into this issue.
Was it already reported?

Meanwhile, I was thinking about a temporary fix.
If only I could figure out which X window property is responsible for title bar height of a window, perhaps I could set it to some low number like 1 or 0, and see if a title bar of that height still generates an offset.

I already tried _NET_WM_ICON_GEOMETRY and _NET_FRAME_EXTENTS, but changing them with xprop didn't really have any effect on anything in the window.

---
Okay, while writing this post I found X window manager specification.
https://specifications.freedesktop.org/wm-spec/wm-spec-latest.html [specifications.freedesktop.org]
I'll look into it and see if I can come up with any kind of solution. Might be impossible, but who knows.

ajz3d

animatrix_
I created a hotkey for it, it's available in Python HOM:

def fullscreenSession():
    window = hou.qt.mainWindow()
    if window.isFullScreen():
        window.showNormal()
    else:
        window.showFullScreen()

    hou.ui.setHideAllMinimizedStowbars(window.isFullScreen())

Nice!

It behaves funny though. When I run it for the first time, Houdini enters full-screen, but leaves that gap at the bottom of its window. If I run it again to restore the window, and hit it one more time, I get the correct full-screen mode (without the gap).

Next time I exit full-screen and run the script again, the process repeats. First the gap, then it's ok. This sequence repeats every time.

Of course, it's not the script's fault.

animatrix_
That's strange I don't have that issue also. One issue is calling this on Houdini start up using Python timer, sometimes it freezes the app so I have to manually invoke it to be safe after the UI is initialized.

I was using a timer to trigger it after 4 seconds but sometimes i hangs.

animatrix_
Hi,

I use fullscreen exclusively with my extension:

I used to have some display issues with Qt fullscreen feature also. Unfortunately it seems to be a hit or miss depending on the hardware and OS used. Before in fullscreen mode the entire screen would blank out.

But now on Windows 10 and CentOS, I don't have any of these issues on my ASUS laptop. So not sure if H19 also improved on this. I know dragging nodes onto parameters used to have an offset in screen space to make it work, but now in H19 no need.

The only issue is the popup menus, and menu highlighting has the offset issue. I probably should report this maybe SESI might fix it.

Otherwise Qt fullscreen is not officially supported in Houdini.