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PfTextWidthChars()

Calculate the width of a char string of multibyte UTF-8 characters

Synopsis:

#include <photon/Pf.h>
int PfTextWidthChars( const char *font,
                      const char *str,
                      int len );

Arguments:

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.

Library:

ph

Description:

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.

Returns:

The width of the string, or 0 if an error occurred.

Classification:

Photon

Safety:
Interrupt handler	No
Signal handler	No
Thread	No

See also:

PfGenerateFontName(), PfTextWidthBytes()

Fonts chapter of the Photon Programmer's Guide

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