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Old October 21st, 2009, 07:26 AM
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Default Delphi printing oddities

Hi guys, first post here so be gentle :)

Im having some bother with printing in delphi and im wondering if anyone has come across the same issues that im having.

We create images of charts, lots of lines and shaded areas, all created on a delphi TMetafileCanvas, this is then sent to the printer in a page by page notion as defined by the setting of the printer.

Sometimes it works fine, sometimes it will just miss out a huge chunk of the image, like it will get halfway through a page and then literally just stop. Then on the next page draw everything fine. Its not even consistent in where it fails, you can print the exact same image after one that had failed and it will print out fine. The worst thing is there are no error messages shown either.

I had originally suspected some form of memory issue but everything seems to be getting disposed of and cleaned up correctly.

Does anyone have any suggestions or previous experience of this type of issue?


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