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changed an important comment note for FT_Size_Metrics 

describing the ascender, descender and text height..
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David Turner 2000-06-01 06:01:59 +00:00
parent 6b0bf34665
commit a7b53c47fc
1 changed files with 11 additions and 4 deletions
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15
include/freetype/freetype.h
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@ -837,10 +837,17 @@
/* fixed point pixels. Always positive. */
/* */
/* <Note> */
/* This structure doesn't return the vertical ascender, descender, */
/* and height, as well as a few other esoteric properties. One can */
/* however compute these through the size's x_scale and y_scale, */
/* applied to the relevant face properties. */
/* The values of "ascender", "descender" and "height" are only the */
/* scaled versions of "face->ascender", "face->descender" and */
/* "face->height". */
/* */
/* Unfortunately, due to glyph hinting, these values might not be */
/* exact for certain fonts, they thus must be treated as unreliable */
/* with an error margin of at least one pixel !! */
/* */
/* Indeed, the only way to get the exact pixel ascender and descender */
/* is to render _all_ glyphs. As this would be a definite performance */
/* hit, it's up to client applications to perform such computations.. */
/* */
typedef struct FT_Size_Metrics_
{