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Calculate the width of a char string of multibyte UTF-8 characters
#include <photon/Pf.h>
int PfTextWidthChars( const char *font,
const char *str,
int len );
- font
- The name of the desired font.
You should use
PfGenerateFontName()
to create this name.
- str
- A char string of multibyte UTF-8 characters.
- len
- The number of characters in the string.
If len is 0, strlen(str) is assumed.
ph
PfTextWidthChars() is a convenience function that calculates the
width of the given string in the given font, using the formula:
extent.lr.x - min(extent.ul.x, 0) + 1
PfTextWidthBytes()
is similar, but you pass it the number of bytes in the string, not the
number of characters.
The width of the string, or 0 if an error occurred.
Photon
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
No |
PfGenerateFontName(),
PfTextWidthBytes()
Fonts
chapter of the Photon Programmer's Guide
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