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-   -   Extend topology with SetDisplayConfig function (https://displaylink.org/forum/showthread.php?t=66618)

agastal 05-22-2019 01:48 PM

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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