CODEWITHSUNDEEP
c#.netwinforms
William Madonna Jr.
William Madonna Jr.

Reputation: 242

Form and controls backgroundimage not displaying on "some" computers

This is a weird one. I have a C# app that has a BackgroundImage set for the form backgrounds. And also for some button controls. This app has been released for several months now and has been installed on about 20 or so different computers.

Just had a new customer install the app and the background images are not displaying. Just get the default background color displayed for the forms and buttons. This appears to be true for ALL forms and ALL controls that have a background image set. NONE of them show up.

One wierd thing I did notice is that there are a few buttons on one form that for whatever reason I set the .Image property instead of the .BackgroundImage property. These buttons DO show the image. So this seems to only be a problem with .BackgroundImage

Computer is Win7 Home Premium. Tried disabling their anti virus - no help. Not sure what the heck could be causing this. Any ideas? Anybody?

EDIT: Here is a screen shot from my minimal test app. This app was done totally with the VS designer (I did not write ANY code). Just clicking on the properties, clicking the "..." button for backgroundimage and selecting a file from my hard drive to import. The form should have a background image. So should the button on the left. The button on the right I set the .Image property. All background images are the same file as you see displayed on the button that is working.

enter image description here

Upvotes: 1

Views: 3036

Answers (1)

Hans Passant
Hans Passant

Reputation: 941465

The BackgroundImage won't paint if the machine reports that it is operating in high contrast mode. A setting for users with visual impairments. This normally has more effects, the system color scheme will change.

You could send him a test app that shows the value of SystemInformation.HighContrast. If that's a match and the user otherwise doesn't have trouble with his eyes then he needs to get his machine fixed.

Upvotes: 5

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