Problem with gradient background using remote desktop
Author: email@example.com (Darryl Ley)
I am looking for ideas regarding a color issue when deploying on Windows Terminal Server. In an effort to 'freshen up' our application I have added a gradient to the background of a form. When the application is run directly on a client machine or run directly on the console of the Terminal Server the gradient looks good. When the application is run via a remote desktop session the gradient is no longer smooth and shows horizontal 'bands'.
The Terminal Server display settings and the RDP session are both set for 32 bit color. I have tried setting the gradient as the background in the component's 'Window Properties', displaying it as a 'picture' widget, setting the scale to default and automatic, used a glyph and tried referencing the file directly (.jpg, .bmp and .png) and nothing changes the 'banding' behavior via remote desktop.
The interesting thing is if I just open up the very same image I am using for the gradient using 'Windows Picture and Fax Viewer' inside the same remote desktop session it looks good, but when I open the image using 'Paint' I see the same banding that appears in the Uniface application.
Windows Terminal Server 2003 R2
Client: Windows XP and Windows 7