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Visual Studio310
Hi,



I am drawing some icons on my screen.. these show up very small on the

printer, because an icon of 32x32 pixels on a high resolution printer is

tiny.



How can I make the icon/bitmap appear the same size (percentage of screen)

on paper?



SetMapMode(MM_ANISOTROPIC) ?

En then? I don't understand the SetViewportOrig and ScreenOrig functions..



Lisa


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"Lisa Pearlson" <no@spam.plz>wrote in message news:<OaZIgUTxEHA.2016@TK2MSFTNGP15.phx.gbl>...

Yeah.



If you don't want to use SetViewportXXX, SetWindowXXX functions, use

StretchBlt to output your icons. Also you will have to translate your

graphic objects coordinates manually so that you obtain WYSIWYG on

your printer.



The SetViewport and SetWindow functions are simple - they define the

coefficients of the linear equation:



Xp = Xpo + CXp/CXn * (Xn - Xno), .. the same for y, where



Xp - printer native coordinate,

Xpo - printer origin (viewport origin)

Xn - the 'native' coordinate, the one you pass to your graphic funcs

Xno - window origin

CXp - viewport extension

CXn - window extension



Note, that your icon will not look fine, because modern printers have

large resolutions (like 1200 dpi), while modern displays have 75 or 92

dpi only. So one screen pixel is transformed to 16 printer pixels and

the result is not very good. A better way is to use curves for

printing (like fonts do) and Bezier curves are the one that fit the

task. Of course, I don't know the aim of your program, but it may be

worthy to draw your icons in vector format (say, emf or wmf).

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