With custom printouts using printer.Canvas.TextOut I am continually fighting
the printer resolution.  What is an easy way of deriving the xy coordinates
for TextOut for the different resolutions (300, 600, 1200).  The xy
coordinates are in pixels for the TextOut call.

Thanks in advance

KenFletcher...@juno.com

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news:388cab85@news.nwlink.com...

You can get the horizontal and vertical resolutions in pixels/inch (they can
be different, and certainly will be if you are printing to a fax renderer)
from the GetDeviceCaps API function.
    GetDeviceCaps(Printer.Handle, LOGPIXELSX)
    GetDeviceCaps(Printer.Handle, LOGPIXELSY)

My suggestion would be to write a few functions that convert from physical
page measurements in tenths-of-an-inch or millimetres into pixels. Then wrap
up Canvas.TextOut in a procedure that takes position parameters in
metric/imperial and handles the conversion.

Don't forget that the TextOut position is relative to the top-left corner of
the *printable* page, not the physical page, so you also need to take the
unprintable margins into account. GetDeviceCaps can help there too - just
pass it the PHYSICALOFFSETX and PHYSICALOFFSETY constants.

If you want to get tricky, you could use OffsetViewportOrgEx to offset the
page origin to the physical top-left corner, but you need to do this at the
start of every page.

--
Stephen Brown