<p>Fixed. Much trickier than expected, this was a gfx_sdl bug. gfx_sdl2 isn't affected because it doesn't even support changing the window scale yet!</p>
<p>The gfx_sdl code for changing window size, zoom, and other settings is an utter mess, it's not clear what the consistency requirements are or whether they're obeyed. That was the root cause. gfx_sdl2 is a little better.</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/ohrrpgce/ohrrpgce/issues/14?email_source=notifications&email_token=AMWGWZWIIXAL3HO6QZMQONDQED5TVA5CNFSM4H7IJSHKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD4BUOQY#issuecomment-520308547">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AMWGWZTLUR6PSVXF7HWPMGLQED5TVANCNFSM4H7IJSHA">mute the thread</a>.<img src="https://github.com/notifications/beacon/AMWGWZVDI3BDCHDBG2SFJBTQED5TVA5CNFSM4H7IJSHKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD4BUOQY.gif" height="1" width="1" alt="" /></p>
<script type="application/ld+json">[
{
"@context": "http://schema.org",
"@type": "EmailMessage",
"potentialAction": {
"@type": "ViewAction",
"target": "https://github.com/ohrrpgce/ohrrpgce/issues/14?email_source=notifications\u0026email_token=AMWGWZWIIXAL3HO6QZMQONDQED5TVA5CNFSM4H7IJSHKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD4BUOQY#issuecomment-520308547",
"url": "https://github.com/ohrrpgce/ohrrpgce/issues/14?email_source=notifications\u0026email_token=AMWGWZWIIXAL3HO6QZMQONDQED5TVA5CNFSM4H7IJSHKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD4BUOQY#issuecomment-520308547",
"name": "View Issue"
},
"description": "View this Issue on GitHub",
"publisher": {
"@type": "Organization",
"name": "GitHub",
"url": "https://github.com"
}
}
]</script>