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Code to change windows 7 screen resolution in windows application

Posted on 2013-06-25
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Last Modified: 2013-06-28
Can someone provide vb.net code or a method of changing the windows 7 screen resolution in a windows application?

Thanks!
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Question by:dave_sky
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Joe Winograd, EE MVE 2015&2016 earned 500 total points
ID: 39276967
Hi Dave,
I'm a huge fan of NirSoft's (free!) utilities, which I've been using for many years:
http://www.nirsoft.net/

One of them is NirCmd:
http://www.nirsoft.net/utils/nircmd.html

Scroll down to the bottom for the download links. Note that there are separate ones for 32-bit and 64-bit.

There are so many things you can do with this...I suggest reading through all of it...I think you'll be impressed...I certainly am. Anyway, one of the options is "setdisplay". The syntax, description, and examples from the Help file are below. Regards, Joe

setdisplay {monitor:index/name} [width] [height] [color bits] {refresh rate} {-updatereg} {-allusers}

Changes your display settings. The [width] and [height] parameters represents the number of pixels on your screen. The [color bits] parameter represents the number of colors shown on your screen (8 - 256 color, 16 - 16bit color, 24 - 24bit color, and so on). {refresh rate} is an optional parameter that specifies the monitor refresh rate. If you specify the {-updatereg} parameter, the new settings will be saved in the Registry. If you specify both {-updatereg} and {-allusers} parameters, the new settings will be saved in the Registry for all users.

If you have multiple monitors, you can use the optional monitor parameter, which specifies for which monitor you want to change the display settings. You can specify the monitor by index (0 for the first monitor, 1 for the second one, and so on) or by specifying a string in the system monitor name. The monitor name can be found in the Device manager of Windows: Right click on the monitor item, and then choose 'Properties'. The string displayed in the 'location' field is the monitor name.

Example:

setdisplay 800 600 24 -updatereg
setdisplay 1024 768 24 90
setdisplay 1024 768 8
setdisplay monitor:1 1024 768 24 90
setdisplay monitor:name1 1024 768 24 90
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Author Closing Comment

by:dave_sky
ID: 39285877
Thanks a lot!
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LVL 54

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by:Joe Winograd, EE MVE 2015&2016
ID: 39285896
You're very welcome!
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