YACReader does not start on Win 10 / Dual Monitor

Hello Luis,

I'm using the YACReaderLibrary to organize my comics on a Windows Desktop system and the server to browse and import them on my iPad. The options are pretty basic so far, but very functional.

While re-installing the YACReader (8.5.0 OPEN-GL version) on my new computer (Win10 64bit) I've experienced an annoying bug:

After a while the YACReader won't start anymore. Just the reader, not the library. In the Windows Event Manager I see two exceptions:

Name der fehlerhaften Anwendung: YACReader.exe, Version: 0.0.0.0, Zeitstempel: 0x56f5724e
Name des fehlerhaften Moduls: Qt5Gui.dll, Version: 5.5.1.0, Zeitstempel: 0x561c06dd
Ausnahmecode: 0xc0000005 (= STATUS_ACCESS_VIOLATION)

and after a second or so

Ausnahmecode: 0xc000041d (= STATUS_FATAL_USER_CALLBACK_EXCEPTION)

It took me a while to figure out the cause of this:

the YACReader saves its last position in an ini file. I'm working with dual monitors and my secondary monitor is virtualy left of my primary. When I move the Reader to my secondary before closing, the x position becomes negative

POS=@Point(-926 38)

This seems to be the cause of the exceptions. If I delete the ini file in AppData/Local/YACReader or at least change the position to something positive, e.g.

POS=@Point(926 38)

and et voilà, the reader appears again with no more exceptions recorded.

I hope this helps with the QS of your next Version.


Keep up the good work,
Thomas

The weird part: for me, just the library opens, even on the second monitor.

Thanks for posting the bug.

I don't have a dual monitor setup, but I can move YACReader outside the visible area of my screen before closing it so the POS setting is saved with a negative value.

But I can't replicate the crash.

Very weird bug btw, negative values are allowed for the position of the window...

I will keep investigating

My `yacreader.ini` after a crash:

Does it helps?

No negative values here, but it crashes.

I will try to use that config.

BTW, I have enable extra security options in the forum to avoid spam, so now any new post/message has to be approved by an admin before it appears in the forum.

I'm having the same issue as OP, YACLibrary works fine, but YACReader won't start anymore.
I managed to fix the problem by editing the last position in the init file as well.

I've messed around with it a bit, and the crash only happens when Windows sees the YACReader window as being on the monitor that isn't my main display.

To illustrate, since I'm not sure my explanation is clear enough, I have two monitors, the left one being my main display.

As long as Windows regards YACReader as being on the left monitor, YACReader will start up fine when i open it again after closing.




However, the moment Windows sees the YACReader window as being on the right monitor (as you can tell by the YACReader taskbar icon), the reader won't start when I try opening it again.

I don't think it's possible to recreate the crash without a multiple monitor setup. I tried unplugging one of my monitors, in which case the program runs fine, no matter what x- or y-position I choose.

I think this might be a bug that isn't caused by YACReader but by the QT toolkit we're using. The real question here is why it happens with the reader but not with the library. Question: Do you use the library in cover flow mode (the one with the table on the lower half of the screen)? If not, please switch to that mode and check if the crash now also happens with the library app.
Also, just in case, please try to disable hardware acceleration in YACReader's Cover Flow and check if that helps. My current guess is a problem related to OpenGL (it wouldn't be the first time), but it could be anything.

No, @selmf. I changed comic view mode, disabled, enable, disabled the hardware acceleration, but... No crash.

Amazing! This bug has happened to me about 6 times now. Sure enough, deleting the .ini file in AppData/Local/YACReader fixes the problem!