Change Display Settings

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How do you rotate/resize screen resolution? I mean like a code example. I already know the syntax is:

C++

LONG ChangeDisplaySettings(
  __in  DEVMODE *lpDevMode,
  __in  DWORD dwflags
);

But I don't really understand the "devmode" part. I've looked up information about it here: http://msdn.microsoft.com/en-us/library/dd183565(v=VS.85).aspx[^]

I still don't get it even after reading over ten times.

Thanks for the help in advance!
TKG

Posted 29-Mar-11 9:17am

time-killer-games

Updated 29-Mar-11 9:18am

Sandeep Mewara

v2

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Sandeep Mewara 29-Mar-11 15:19pm

Please use PRE tags to format the code part from next time. It makes the question readable and maintains the identation of the code.

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Nyil · Answer 1 · 2011-03-31T01:47:00

The DEVMODE data structure is related with the current diaply details including the driver name, resolution etc.

if you want to get the DEVMODE details for the current diaplay, you can use
EnumDisplaySettings().

http://msdn.microsoft.com/en-us/library/dd162611%28VS.85%29.aspx[^]

in ChangeDisplaySettings() you can use DEVMODE* as NULL value, If lpDevMode is NULL, all the values currently in the registry will be used for the display setting.