Get the logical width of the specified string as if it were drawn with this font.
| GetStringWidth ( |
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IDirectFBFont
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*
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thiz,
|
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const char
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*
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text,
|
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int
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|
bytes,
|
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int
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*
|
ret_width
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| ); |
Bytes specifies the number of bytes to take from the string or -1 for the complete NULL-terminated string.
从字符串中指定要画的字节数，或者为－1的时候画完字符串从NULL到结束。
The returned width may be different than the actual drawn width of the text since this function returns the logical width that should be used to layout the text. A negative width indicates right-to-left rendering.
返回的宽度也许与实际画文本的宽度是不同的，因为这个函数返回的是它的逻辑宽度被使用在布局这文本。返回的是一个负数的宽度表明是从右向左画。
