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Jurgen 2019-05-24 00:02
I've recently come across a corporate customer with an unexpected setup where there is a wide gap between the monitors in his extended desktop. The gap is 1920px (scaled to 3940px).
When I try to position a (WPF) window on the second monitor it fails to show in the intended rect. I'm using APIs to position my windows.
Monitors (API)
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DpiAwareType SystemDpiAware
MonDpiX 192
Monitor1 0, 0, 3840, 2160 ( 3840x2160 )
Monitor2 7680, 0,11520, 2160 ( 3840x2160 )
My problem: i cannot replicate a scenario where i can set the X offset of the 2nd monitor to anything larger than the the right edge of monitor1. win10 (1809) just refuses to allow a gap.
My assumption: he originally had a third monitor which is now disabled or removed.
My question(s): anyone ever come across a setup like this, or is it an anomaly that I should ask the customer to reset his multimonitor cache (registry).
If it's not uncommon.. I've got to find a fix...
Jurgen
win10(1809) surfacebook2 (3000x2000@200%) + dell (3440x1440@100%)
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Christian Studer 2019-05-24 02:34
That shouldn't be possible, my guess would be an application issue due to the per-monitor DPI scaling.
Try if making your application per-monitor DPI aware fixes the issue, you should then get the real screen coordinates.
Christian Studer - www.realtimesoft.com
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Jurgen 2019-05-24 04:13
cant. I'm running an add-in so stuck to the hosting app.
Jurgen
win10(1809) surfacebook2 (3000x2000@200%) + dell (3440x1440@100%)
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Jurgen 2019-05-24 04:19
ps. waiting for the customer to send me a registry dump of HKLM\ SYSTEM\CurrentControlSet\Control\GraphicsDrivers.
Windows.Forms, systemparameters etc give similar sizes as API calls. Somehow I'm convinced I'll find a strange cx offset in that registry.
Jurgen
win10(1809) surfacebook2 (3000x2000@200%) + dell (3440x1440@100%)
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