PrintPreview character width

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PrintPreview character width

Postby wpxyz » January 3rd, 2011, 6:41 pm

Hi,

PrintPreview is a great component, and there is a chance that it will replace many of my Quickreport outputs since it gives me better control over print layout.

Some of my programs are compiled with D7/Win2k at 1280x1024 resolution. When running such a program on a different computer (XP, 1280x800) I realize that preview and printout are strangely distorted such as if the characters were too wide. The characters are also partially overlapping as written in an older posting (viewtopic.php?f=7&t=1262&p=4834&hilit=printpreview#p4834). I could fix the printout issue by activating DirectPrint, but the preview of course still has the same issue.

Is there a solution to this issue in the meantime? Could it be that different mapping factors should be applied because of the different vertical resolutions?

By the way, how can I get the correct page number in case of DirectPrint? In the OnNewPage event I initially used the CurrentPage property to display the page number, but this is not updated if DirectPrint=true. I solved this by incrementing a counter variable in each OnNewPage event, but it would be nice to have this in the component.

With kind regards
Werner
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Re: PrintPreview character width

Postby Kambiz » January 8th, 2011, 12:17 pm

Hi,

I try to fix the wide screen issue on the next release of the component.
I will also add a property to know page number of the page that owns the canvas.

Thank you!
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Re: PrintPreview character width

Postby wpxyz » January 8th, 2011, 6:59 pm

Thank you, I am looking forward to it.

Werner
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Re: PrintPreview character width

Postby Kambiz » February 5th, 2011, 7:43 am

I started working on the new release of PrintPreview.
While looking at the code, I noticed that there is already a property to find out the page owning the canvas. That property is CanvasPageNo. :)
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Re: PrintPreview character width

Postby Kambiz » February 5th, 2011, 8:38 am

Werner,

I tested PrintPreview on different screen resolutions and different DPI settings, and characters appeared correctly as expected on all cases. Apparently the problem is not because of these settings.
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Re: PrintPreview character width

Postby wpxyz » February 8th, 2011, 10:31 pm

Kambiz,

thanks for your efforts.

I missed the CanvasPageNo property, it does exactly what I want.

I did some research on the character width issue on four PCs I have access to, with Win2000, XP and 7, most of them with non 4:3 resolution ratios and could not confirm the issue, except for the notebook referred to in my first posting. So I think this has nothing to do with the PrintPreview component.

Thanks again for your great work.
Werner
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Postby mestro » May 3rd, 2011, 10:13 pm

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Last edited by mestro on July 30th, 2020, 7:00 pm, edited 1 time in total.
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Re: PrintPreview character width

Postby Kambiz » May 7th, 2011, 4:15 am

Before I didn't have character width problem in PrintPreview with TrueType/OpenType fonts. But now I can confirm that the problem exist. I suspect the problem is caused because of either a Windows update or display driver update.
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