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Article #17952: Metafile fonts and the VCL

 Question and Answer Database

FAQ2952D.txt   Metafile fonts and the VCL
Category   :VCL
Platform    :All
Product    :All 32 bit  

Question:
Sometimes, some text in a metafile I display from my application
comes up in the wrong font. The file displays properly in xyz 
Graphics program. Is this a bug in the VCL?


Answer:
No. The VCL simply wraps standard Windows functions for 
displaying metafiles. As the metafile is scaled, the font  width 
and height are scaled as well. Many times, the Windows font 
mapper will simply substitute a different font that the font that 
was originally selected in an attempt to satisfy the request. 
This can also be seen in many graphics programs if you 
arbitrarily scale the metafile in different directions. Note that 
some "hi end" graphic programs actually read the metafile 
record by record, bypassing the WIndows GDI entirely to 
overcome the effects of the Windows font mapper.

7/16/98 4:31:28 PM
 

Last Modified: 01-SEP-99