🚀 go-pugleaf

Hi,

i'm using "ExtCreatePen" to create dashed pen style with >1 line width. as 
you know to create >1 width pens , we should create geometric (PS_GEOMETRIC) 
pen. To create manual styles/patterns i'm including PS_USERSTYLE also. Then 
i'm defining the pattern;
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DWORD penFlags=PS_GEOMETRIC | PS_USERSTYLE | PS_ENDCAP_FLAT | PS_JOIN_BEVEL;
LOGBRUSH lb;
DWORD userStyles[2]={30,40};    // 30unit line, 40unit space, .......

 lb.lbStyle=BS_SOLID;
 lb.lbColor=clBlack;
 lb.lbHatch=HS_CROSS;

 Canvas->Pen->Handle=ExtCreatePen(penFlags,3,&lb,2,userStyles);
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the dash definition is 30 pixel line 40 pixel space (are they really 
pixel?). In MSDN it says the unit is logical for pattern defines. I've tried 
it on several printers and realized that for most of them this information 
is correct. Except on one printer, it does not draw 30 pixels (when 
converted to mm. -600dpi- 30pixel makes ~1.27mm). let's talk with mm. after 
now.
According to pattern define values (30,40);
printer A draws 1.27 mm on paper for 30pixel, printer B draws 12.7mm for 30 
pixel. Obviously there is a multiplier for printer B but i couldn't find 
that.

as i said MSDN claims that pattern is in logical unit as like MoveTo,LineTo 
winapi methods. I've tried to draw 30pixel length lines and 40pixel spaces, 
and measured that they are 1.27mm,1.69mm space. When i've tried to create 
pen with 30,40 pattern and draw a line, the output was 12.7mm line 16.9mm 
space on printer B. on printer A they were all same and 1.27mm/1.69mm.

It seems like there should be a multiplier for LINE STYLE DEFINITIONS only.
i queried the map mode but it was MM_TEXT for all priners.

the question is; what is the UNIT for patterns to define pen styles ? and is 
there any multiplier for it ? thanks for helping...
_______________________
Eyyub Volkan �ektimur
Proya Software Inc.