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Old 05-22-2019, 12:48 PM   #1
agastal
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Join Date: May 2019
Posts: 1
Question Extend topology with SetDisplayConfig function

I can't extend two duplicate Displaylink monitors programmatically.

Normally to extend two monitors just a system call is needed, but with two Displaylink monitors duplicated, it doesn't work.

The function SetDisplayConfig does not work:
SetDisplayConfig(0, NULL,0, NULL,(SDC_APPLY | SDC_TOPOLOGY_EXTEND));

The manual operation in Windows Settings works correctly but by code (C or C++ or C#) it is impossible to extend two duplciate monitors.

Has anyone already had this problem?
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