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Displaying variable values with ID3DXFont

Started by sefSale Sep 4, 2006 at 10:57 AM 2 replies 700+ views

Original Post

Sep 4, 2006 at 10:57 AM

I'm using ID3DXFont::DrawText to draw text on screen. Everything works fine when I'm writing strings, but how do I display variable values? I'm a bit confused because DrawText expects a pointer to the string it needs to diplay, and I want to write numbers (for example: time, points, lives...). Is there any way to convert an integer or float to a string?

Thergothon

Sep 4, 2006 at 11:05 AM

use sprintf (or equivalent) to place your numbers and values into strings that can be displayed via drawtext.

ie

char buffer[32];sprintf_s(buffer, "Some value: %d", someInt);font->DrawText(0, buffer, strlen(buffer), ▭, DT_LEFT | DT_VCENTER, 0xffffffff);

mattd

Sep 4, 2006 at 11:08 AM

Or, since you're (probably) using C++, you might as well do it right:

#include <sstream>// ...std::ostringstream os;os << "Points: " << pointsInt;font->DrawText(/* ... */, os.str().c_str(), os.str().size(), /* ... */);

Also, obligatory plug for boost::lexical_cast which may be even quicker if you already have boost available.

sefSale

Sep 4, 2006 at 5:30 PM

Great, thanks! It should work now...

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