(This function is part of SDL_ttf, a separate library from SDL.)

TTF_SetFontDirection

Set direction to be used for text shaping by a font.

Syntax

int TTF_SetFontDirection(TTF_Font *font, TTF_Direction direction);

Function Parameters

font	the font to specify a direction for.
direction	the new direction for text to flow.

Return Value

Returns 0 on success, or -1 on error.

Remarks

Any value supplied here will override the global direction set with the deprecated TTF_SetDirection().

Possible direction values are:

• TTF_DIRECTION_LTR (Left to Right)
• TTF_DIRECTION_RTL (Right to Left)
• TTF_DIRECTION_TTB (Top to Bottom)
• TTF_DIRECTION_BTT (Bottom to Top)

If SDL_ttf was not built with HarfBuzz support, this function returns -1.

Version

This function is available since SDL_ttf 2.20.0.

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CategoryAPI

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