ChangeDisplaySettingsEx

i try to use ChangeDisplaySettingsEx(…) to change the settings of three monitors. however through i have it working, i realise that DM_POSITION don’t work.(i’m not able to set the position of my monitors.)

is there any constrains when using this function or …?

Thank in advance!!

You would have much better luck posting this question in a Windows programming forum. Or searching on msdn.microsoft.com for known issues, function descriptions etc.