<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=gb2312" http-equiv=Content-Type>
<STYLE>
BLOCKQUOTE {
MARGIN-BOTTOM: 0px; MARGIN-LEFT: 2em; MARGIN-TOP: 0px
}
OL {
MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px
}
UL {
MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px
}
P {
MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px
}
DIV.FoxDiv20220310100245025746 {
FONT-SIZE: 10.5pt; FONT-FAMILY: 微软雅黑; COLOR: #000000; MARGIN: 10px; LINE-HEIGHT: 1.5
}
BODY {
FONT-SIZE: 10.5pt; FONT-FAMILY: 微软雅黑; COLOR: #000080; LINE-HEIGHT: 1.5
}
</STYLE>
<META name=GENERATOR content="MSHTML 11.00.9600.16428">
<STYLE>BLOCKQUOTE {
MARGIN-TOP: 0px
}
OL {
MARGIN-TOP: 0px
}
UL {
MARGIN-TOP: 0px
}
</STYLE>
</HEAD>
<BODY style="MARGIN: 10px">
<DIV> </DIV>
<DIV> </DIV>
<HR style="HEIGHT: 1px; WIDTH: 210px" align=left color=#b5c4df SIZE=1>
<DIV><SPAN>lixuanzhao</SPAN></DIV>
<DIV> </DIV>
<DIV
style="BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0cm; PADDING-TOP: 3pt; PADDING-LEFT: 0cm; BORDER-LEFT: medium none; PADDING-RIGHT: 0cm">
<DIV
style="FONT-SIZE: 12px; BACKGROUND: #efefef; COLOR: #000000; PADDING-BOTTOM: 8px; PADDING-TOP: 8px; PADDING-LEFT: 8px; PADDING-RIGHT: 8px">
<DIV><B>发件人：</B> <A href="mailto:lixuanzhao@dascom.cn">lixuanzhao</A></DIV>
<DIV><B>发送时间：</B> 2022-03-10 09:39</DIV>
<DIV><B>收件人：</B> <A href="mailto:cairo@cairographics.org">cairo</A></DIV>
<DIV><B>主题：</B> CAIRO API</DIV></DIV></DIV>
<DIV>
<DIV class=FoxDiv20220310100245025746>
<STYLE>BLOCKQUOTE {
MARGIN-BOTTOM: 0px; MARGIN-LEFT: 2em; MARGIN-TOP: 0px
}
OL {
MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px
}
UL {
MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px
}
P {
MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px
}
</STYLE>
<META name=GENERATOR content="MSHTML 11.00.9600.16428">
<DIV>Cairo：</DIV>
<DIV style="TEXT-INDENT: 2em">hello，</DIV>
<DIV style="TEXT-INDENT: 2em">
<DIV>I have a question and hope to receive it. </DIV>
<DIV>It is found that there is a function
<DIV style="FONT-WEIGHT: bold">cairo_public cairo_surface_t *</DIV>
<DIV
style="FONT-WEIGHT: bold">cairo_image_surface_create_from_png (const char
*filename);</DIV></DIV>
<DIV> If the read PNG background color is non transparent, the read data is 0xff.</DIV>
<DIV> Can this function only read the data of transparent background color?</DIV>
<DIV> I hope to get a reply and answer. Thank you.</DIV></DIV>
<DIV> </DIV>
<HR style="HEIGHT: 1px; WIDTH: 210px" align=left color=#b5c4df SIZE=1>
<DIV><SPAN>lixuanzhao</SPAN></DIV></DIV></DIV></BODY></HTML>