I'm trying to add text to my game using SDL_TTF, and it's working pretty well.

Except for one thing :

My text's SDL_Surface needs a width and a height, if I don't give it one it will automatically set it to 0, making the text invisible.

However, if I insert a value like 100 width and 100 height, it will stretch the image.

I need to know how I would convert ANY font size on the font arial to pixels in width and height.

  • \$\begingroup\$ The size of each font is different, I guess you only option is to try a size, get its width and height with TTF_SizeText() and then reduce it or increase it repeatedly \$\endgroup\$ – Xriuk Mar 18 '16 at 20:17
  • \$\begingroup\$ @Xriuk That would not give me a good high and width if the font size were to change during runtime though, right? \$\endgroup\$ – BiiX Mar 18 '16 at 20:19
  • \$\begingroup\$ Are you using surfaces or textures for rendering? \$\endgroup\$ – Tyyppi_77 Mar 18 '16 at 21:22
  • \$\begingroup\$ @BiiX You could implement this into a function, and then call it whenever your font changes size \$\endgroup\$ – Xriuk Mar 19 '16 at 13:35
  • \$\begingroup\$ @Tyyppi_77 I'm using textures. \$\endgroup\$ – BiiX Mar 19 '16 at 18:15

TTF_RenderText_Solid(font, const char* text, {r, g, b}); renders a surface with text on it. You could just use something like

SDL_Surface* text = TTF_RenderText_Solid(arial, "hi", {r, g, b});
int textWidth = text->w;
int textHeight = text->h;

You don't even need to make a blank surface for this method.

| improve this answer | |
  • \$\begingroup\$ That does not work, it gives me a height and width of 0. \$\endgroup\$ – BiiX Mar 19 '16 at 18:14
  • 1
    \$\begingroup\$ Nevermind, it did work. I tried it before I asked the question and it didn't work... I must have done something really stupid. lol \$\endgroup\$ – BiiX Mar 19 '16 at 18:26
  • \$\begingroup\$ No problem. Good luck with the project! \$\endgroup\$ – Paolo Mazzon Mar 20 '16 at 0:07

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