Constant 

Meaning 

ETO_CLIPPED  

Only the text that fits within a specified rectangle is displayed. This flag is automatically added when calling the TextRect method. When writing text using TextOut method, this flag has no effect because the drawing boundaries are determined by the TextExtent property.  

ETO_OPAQUE  

The text is drawn with an opaque background color. Using this flag improves performance but does not allow images behind the text rectangle to show.  

ETO_RTLREADING  

Text strings are displayed from right to left. This is available only with Mideast versions of Windows, where text is written from right to left. Often this is used in combination with a CanvasOrientation of coRightToLeft.  

ETO_GLYPH_INDEX  

The text is an array of character placement codes that are parsed directly by the Windows GDI. Glyph indexing only applies to TrueType fonts, but the flag can be used with other fonts to indicate that the GDI should process the text string directly without language processing. See the Windows GDI documentation for more details.  

ETO_IGNORELANGUAGE  

This is an undocumented Microsoft flag. Check updates of Microsoft documentation for when information is provided.  

ETO_NUMERICSLOCAL  

All numbers in the text are displayed using digits specific to the current locale.  

ETO_NUMERICSLATIN  

All numbers in the text are displayed using European digits.  

ETO_PDY  

This flag is only relevant when using the Windows API ExtTextOut. When this is set, the array pointed to by lpDx contains pairs of values. The first value of each pair is, as usual, the distance between origins of adjacent character cells, but the second value is the displacement along the vertical direction of the font.