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

TTF_OpenFontWithProperties

Create a font with the specified properties.

Header File

Defined in <SDL3_ttf/SDL_ttf.h>

Syntax

TTF_Font * TTF_OpenFontWithProperties(SDL_PropertiesID props);


#define TTF_PROP_FONT_CREATE_FILENAME_STRING            "SDL_ttf.font.create.filename"
#define TTF_PROP_FONT_CREATE_IOSTREAM_POINTER           "SDL_ttf.font.create.iostream"
#define TTF_PROP_FONT_CREATE_IOSTREAM_OFFSET_NUMBER     "SDL_ttf.font.create.iostream.offset"
#define TTF_PROP_FONT_CREATE_IOSTREAM_AUTOCLOSE_BOOLEAN "SDL_ttf.font.create.iostream.autoclose"
#define TTF_PROP_FONT_CREATE_SIZE_FLOAT                 "SDL_ttf.font.create.size"
#define TTF_PROP_FONT_CREATE_FACE_NUMBER                "SDL_ttf.font.create.face"
#define TTF_PROP_FONT_CREATE_HORIZONTAL_DPI_NUMBER      "SDL_ttf.font.create.hdpi"
#define TTF_PROP_FONT_CREATE_VERTICAL_DPI_NUMBER        "SDL_ttf.font.create.vdpi"

Function Parameters

SDL_PropertiesID

props

the properties to use.

Return Value

(TTF_Font *) Returns a valid TTF_Font, or NULL on failure; call SDL_GetError() for more information.

Remarks

These are the supported properties:

• TTF_PROP_FONT_CREATE_FILENAME_STRING: the font file to open, if an SDL_IOStream isn't being used. This is required if TTF_PROP_FONT_CREATE_IOSTREAM_POINTER isn't set.
• TTF_PROP_FONT_CREATE_IOSTREAM_POINTER: an SDL_IOStream containing the font to be opened. This should not be closed until the font is closed. This is required if TTF_PROP_FONT_CREATE_FILENAME_STRING isn't set.
• TTF_PROP_FONT_CREATE_IOSTREAM_OFFSET_NUMBER: the offset in the iostream for the beginning of the font, defaults to 0.
• TTF_PROP_FONT_CREATE_IOSTREAM_AUTOCLOSE_BOOLEAN: true if closing the font should also close the associated SDL_IOStream.
• TTF_PROP_FONT_CREATE_SIZE_NUMBER: the point size of the font. Some .fon fonts will have several sizes embedded in the file, so the point size becomes the index of choosing which size. If the value is too high, the last indexed size will be the default.
• TTF_PROP_FONT_CREATE_FACE_NUMBER: the face index of the font, if the font contains multiple font faces.
• TTF_PROP_FONT_CREATE_HORIZONTAL_DPI_NUMBER: the horizontal DPI to use for font rendering, defaults to TTF_PROP_FONT_CREATE_VERTICAL_DPI_NUMBER if set, or 72 otherwise.
• TTF_PROP_FONT_CREATE_VERTICAL_DPI_NUMBER: the vertical DPI to use for font rendering, defaults to TTF_PROP_FONT_CREATE_HORIZONTAL_DPI_NUMBER if set, or 72 otherwise.

Thread Safety

It is safe to call this function from any thread.

Version

This function is available since SDL_ttf 3.0.0.

See Also

• TTF_CloseFont

---

CategoryAPI, CategoryAPIFunction

[ front page | index | search | recent changes | git repo | offline html ]

All wiki content is licensed under Creative Commons Attribution 4.0 International (CC BY 4.0).
Wiki powered by ghwikipp.