Re: Keep image resolution?

Author

Message

Magnus Haggren

Posted: 01/27/2005 12:28:52

Ok, I can see how I can resize the image in code. But when I print, I still

get a very low resolution. If I compare to when I print from a different

program it is a big difference. Could you just give me some code that would

show how to print a picture correctly?

Thanks,

Magnus Haggren

Enera Internationa AB

"Sergey Tkachenko" <[email protected]> wrote in message

news:[email protected]...

> By default, bitmaps are displayed on screen at their actual size in

pixels.

> RichViewPixelsPerInch affects only printing and exporting to RTF.

> If it's nonzero, size_in_printer_pixels = size_in_screen_pixels *

> printer_resolution / RichViewPixelsPerInch.

> (if it's zero, the actual screen resolution is used).

> DPI value of bitmap images is not used. They are simply drawn as

> var bmp: TBitmap;

> bmp.LoadFromFile(...)

> Canvas.Draw(x,y, bmp);

> I do not plan to add a support of bitmap resolutions, because many bitmaps

> contain incorrect values there (for example, I have many bitmaps having

> Mac's 72 value there)

> You need to resize them yourself to the proper size - either by mouse, or

> setting rvepImageWidth, rvepImageHeight properties (see the help file on

> TRVExtraItemProperty)

> > I am evaluating RichView for our current application. I've played around

> > with the demo for the while and most of it looks good. There is one

> problem

> > though, that I can't seem to get around that has to do with high

> resolution

> > images (around 200dpi, 1728 pixels wide). First if I just, add the image

> to

> > my RichViewEdit, it does not fit. If I either resize the image or change

> the

> > RichViewPixelsPerInch to 200dpi, the image fits but the image is jagged

> when

> > I print it.

> >

> > Is there a better way of handling high resolution images so that the

image

> > resolution is not lost?

> >

> > Regards,

> > Magnus Haggren

> > Enera International AB

> >