06213: Toggle between window mode and fullscreen not remembered after loading/stopping driver

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06213	Core	Minor	Always	May 14, 2016, 17:54	May 25, 2016, 07:15

Tester	Jezze	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	No change required	OS	Windows Vista/7/8 (64-bit)
Status [?]	Closed			Driver
Version	0.172	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	06213: Toggle between window mode and fullscreen not remembered after loading/stopping driver
Description	When you start in window mode, load a driver and switch to fullscreen, the screen will be changed back to window mode when you stop the driver or load another one. (and the other way around) Toggling between window mode and fullscreen should only be done when pressing ALT + Enter. I don't know how old this bug is (maybe older than 0.172), but is has nothing to do with the other recent ALT + Enter bugs in 0.173.
Steps To Reproduce	1. Run MAME in window mode 2. Load any driver 3. Switch to fullscreen 4. Load another driver Expected behavior is the driver is loaded and the screen is still in fullscreen. Occurred behavior is the driver is loaded and the screen has been switched back to window mode
Additional Information
Github Commit

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Attached Files

No.12654 NekoEd Senior Tester May 14, 2016, 21:08	This one does reproduce in SDLMAME, but I'm not sure what the intended behavior is. Marking for MAMEDEV feedback.
No.12658 R. Belmont Developer May 15, 2016, 21:15	Correct behavior is that MAME never touches the window setting in your ini; it's been like that since day 1.
No.12673 u-man Tester May 18, 2016, 10:06	Switching between fullscreen / windowed mode, is not saved anywhere in MAME. So if you have set MAME to start in windowed mode with your mame.ini, it will start everytime in windowed mode, if you change the driver/game and it does not matter if you switched with ALT-Enter, because this action is not saved and not remembered by MAME.
No.12674 Robbbert Senior Tester May 18, 2016, 10:40	Yeah not a bug, it's by design. window 0 -> start in full screen window 1 -> start in a window override with command-line (-window or -nowindow), if your inis are write-enabled it will be saved. But switching with Alt-enter is never saved.
No.12708 NekoEd Senior Tester May 24, 2016, 20:51	You heard them. Closing.
No.12714 Jezze Developer May 25, 2016, 07:15	I can live with this decision, but I never wanted to save the switch back to the ini. Robbbert said: window 0 -> start in full screen window 1 -> start in a window "start..." of what, actually "start of the driver". And this is what does not make sense to me. I would prefer "start of the application". For me it's an UI setting and not a driver setting and maybe should moved to the ui.ini.