X Window研究笔记(19)
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作者联系方式：李先静 <xianjimli at hotmail dot com>
19.X Window中的图片文件Pixmap
X Window自己定义了一种图片文件格式，叫做pixmap，与众不同的是，它完全以文本文件格式存放图片内容，而不是采用通常的二进制格式。下面一个图片的例子：
static char* Busy1[] = {
"32 32 6 1 15 16"," c None","! c #101010","# c #C0C0C0","$ c #808080","% c #000000","& c #FFFFFF"," "," "," "," "," !!!!!!!!!!!!!!! "," %%%%%%%%%%%%%%% "," !&&&&&&&&&&&! "," !&&&&&&&&&&&! "," !&&&&&&&&&&&! "," !$$&$&&&$&$!! "," !$$$$%&%!$!$! "," !$$$!$!!!$! "," !&$$!$$$! "," !$$$!$! "," !$$$! "," !$! "," !$! "," !$&$! "," !$&$&$! "," !$&&$$&$! "," !$&&&$#&&$! "," !$&&&#$##$&!! "," !&&&&&$&#&&&! "," !&&&&$$$&$&$! "," !&&&$$!&$&&&! "," !$$$$!%!$!$!! "," %%%%%%%%%%%%%%% "," !!!!!!!!!!!!!!! "," "," "," ",
" "};（怎么样，它还反应出实际图片的形状呢。）
这种图片文件的好处在于它是文本格式的，具有更好的可移植性，不用考虑字节顺序和对齐的问题，它的限制在于它的体积庞大，也不适用于存放颜色数多的图片。
(待续)