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


Set font size dynamically with target resolutions (in DPI).

Header File

Defined in SDL_ttf.h


int TTF_SetFontSizeDPI(TTF_Font *font, int ptsize, unsigned int hdpi, unsigned int vdpi);

Function Parameters

font the font to resize.
ptsize the new point size.
hdpi the target horizontal DPI.
vdpi the target vertical DPI.

Return Value

Returns 0 if successful, -1 on error.


This clears already-generated glyphs, if any, from the cache.


This function is available since SDL_ttf 3.0.0.

CategoryAPI, CategoryAPIFunction

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