Change screen orientation (windows 7)

Question

4.00/5 (1 vote)

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hello there developers,
need access threw code to set the screen orientation of the desktop by one click.
first, i want to check if the screen orientation is horizontal or vertical.
then, from status a change it to b by one click.
also, assuming i have 2 screens, how can i get access to the secondary screen?
what that i have so far is this:

VB

Dim theScreenHeight As Integer
Dim theScreenWidth As Integer
theScreenHeight = Screen.PrimaryScreen.Bounds.Height
theScreenWidth = Screen.PrimaryScreen.Bounds.Width
If (theScreenHeight > theScreenWidth) Then
   'change to vertical
Else
   'change to horizontal
End If

thanks a head,
oron

Posted 1-Jun-15 23:22pm

oronsultan

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3 solutions

Solution 1

If you wnat the second screen (and additional screens). You loop through Screen.AllScreens and all that are not equal to the Screen.PrimaryScreen is the 2nd, 3rd, etc... screen.

In c# something like this:

var otherScreens = Screen.AllScreens.Where(x => x != Screen.PrimaryScreen);

Good luck!

Posted 1-Jun-15 23:29pm

E.F. Nijboer

Comments

oronsultan 2-Jun-15 6:11am

thanks a lot for the quick reply...
but still, how can i set the screen orientation threw code?

Ralf Meier 2-Jun-15 6:36am

Do you want to change the Windows-Settings ?
Or do you want to see how they are ?

E.F. Nijboer 2-Jun-15 9:55am

Check here for more on screen orientation:
https://msdn.microsoft.com/en-us/library/microsoft.windowsce.forms.systemsettings.screenorientation%28v=vs.85%29.aspx

oronsultan 2-Jun-15 6:39am

both. in order to determine if to set the view to horizontal or vertical i need first to check the current status (allready got it :-)) and then flip it, so yeah, both.

Ralf Meier 2-Jun-15 6:46am

... then the Orientation is the relation from width to height.
In the Moment I don't understand the Problem in the right way ...

oronsultan 2-Jun-15 6:49am

Dear ralf,
I need to know how can i change my screens resuloution.

Solution 2

I found this : https://social.msdn.microsoft.com/Forums/vstudio/en-US/6318a324-99ff-4368-87be-423ee96a8399/chaning-screen-resolutions-from-vbnet-application[^]

Posted 2-Jun-15 1:00am

Ralf Meier

Comments

oronsultan 2-Jun-15 7:30am

snippes you from the article you gave me:
Case DISP_CHANGE_SUCCESSFUL
'Resolution was changed
'This is not an assurance that the new resolution will render
'proprely on every system. It only means that the registery was
'updated succesfuly and that the driver have not return any
'error
Return ChangeResult.Success
i buield a program according to this code and nothing changes.
but thanks aniway :-)

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Ralf Meier · Accepted Answer · 2015-06-02T05:25:00

I'm sorry that I posted you a Link with an Information, which isn't working. I thought that posts on MSDN would word - my mistake. By searching in the Internet I found more Snippets like the posted one, which have nearly the same code.

But now I have a Link for you which guides you to a working solution : https://www.vb-paradise.de/index.php/Thread/68853-alle-bildschirmaufloesungen-ermitteln-und-wechseln/[^]

I hope, that it is not a big problem for you that the linked Forum is a German one.
You only have to load the ZIP-File and the end of the Thread at the User 'Erfinder des Rades' (Inventor of the Wheal).

This Code I have tested and it works ... ;)

Greetings
Ralf