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PMView Pro Forums _ PMView - OS/2 Technical Support _ Black 1px Bar At Right Of Generated Icon

Posted by: Teijo Apr 13 2006, 10:44 PM

Large (200x200px) icons automatically generated by PMView after file type conversion of a large file with a white background to png format appear on the desktop with a black 1px bar on the right edge. This bar is only apparent in the icon when shown on the desktop and don't seem to be present in the icon file when opened in the icon editor. Is this a known OS/2 bug?

Posted by: Peter Apr 16 2006, 10:43 AM

It is a "feature" of OS/2's poor scaling. In order for icons to look good on the desktop, you need to make sure to use the SAME thumbnail size as the desktop icon size is used (usually 40x40 pixels). Any other thumbnail size means that OS/2 needs to scale the thumbnails, which results in worse looking icons...

For PERFECT icon quality a system should use EA Thumnails with the OS/2 icon size and then use on-the-fly thumbnailing to see larger versions. Of course this means that loading of larger versions will be slower since they need to be created on the fly instead of stored in the EAs.


Posted by: Teijo May 1 2006, 02:36 AM

As a feature request for some future version, would it be feasible to store the icon EA in the default system icon size and a separate for PMView thumbnail EA in whatever size the user wants? The extra space taken by the "normal" icon would not be of much concern, but would certainly look better. (In any case my 200px square thumbnails sometimes take more disk space than the original images.)

Another somewhat related feature perhaps worth considering would be the ability to convert an image to an .ico file that would contain all the standard size/color formats for the platform instead of just the 40x40 pixel version.

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