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Monochrome charts

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One of the users of our application has a very strange problem with charts.

Our application is able to save charts as jpeg files (with pagination). This

is achieved by calling Paint method with the bitmap device context

(CreateCompatibleBitmap / CreateCompatibleDC) and CPAINT_BKGND|CPAINT_PRINT

flags. Then the bitmap is converted to jpeg format.

The problem is that all jpeg files produced on that user's PC are

monochrome. This happens only on that single PC, other PCs do not have such


We don't know whether it is a problem with the user's PC configuration, a

bug in our application or the Chart FX's bug. We are in process of

investigation of this problem.

Unfortunatelly no developer tools (like debugger) exist or may be installed

on that user's PC.

Could somebody suggest anything please? This is quite urgent.

The user's PC configuration (as reported by the user):

O/S NT Workstation 4 build 1381


Swap file size 310184KB

USER memory available 90%

GDI memory available 90%

Default printer Network printer - HP5M

Display Adapter type s3 compatible display adapter

Driver Info Microsoft. Version Nos. 4.00, 4.0.0

Adapter Info Chip Type: S3 765

DAC Type: S3

Memory Size: 1MB

Adapter String: Phoenix

Thanks in advance


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