?? getpolyfillmode.htm
字號(hào):
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 3.0">
<style><!--
body,table {font-family:"宋體"; font-size: 9pt; line-height:11pt;}
a {text-decoration:none} a:hover {color:red;text-decoration:underline}
--></style>
<title>GetPolyFillMode</title>
</head>
<body link="#FF0000" vlink="#FF0000" alink="#FF0000" bgcolor="#FFC8C8">
<div align="center"><center>
<table border="0" width="100%" height="22" cellspacing="0" cellpadding="0">
<tr>
<td width="100%" height="16">GetPolyFillMode</td>
</tr>
</table>
</center></div><div align="center"><center>
<table border="1" width="100%" bordercolorlight="#808080" cellspacing="0"
bordercolordark="#FFFFFF">
<tr>
<td width="102%" colspan="2">VB聲明</td>
</tr>
<tr>
<td width="102%" colspan="2">Declare Function GetPolyFillMode Lib "gdi32" Alias
"GetPolyFillMode" (ByVal hdc As Long) As Long</td>
</tr>
<tr>
<td width="102%" colspan="2">說明</td>
</tr>
<tr>
<td width="102%" colspan="2">針對(duì)指定的設(shè)備場(chǎng)景,獲得多邊形填充模式。關(guān)于填充模式見注解</td>
</tr>
<tr>
<td width="102%" colspan="2">返回值</td>
</tr>
<tr>
<td width="102%" colspan="2">Long,常數(shù)ALTERNATE 或 WINDING。零表示失敗</td>
</tr>
<tr>
<td width="102%" colspan="2">參數(shù)表</td>
</tr>
<tr>
<td width="25%">參數(shù)</td>
<td width="77%">類型及說明</td>
</tr>
<tr>
<td width="25%">hdc</td>
<td width="77%">Long,設(shè)備場(chǎng)景的句柄</td>
</tr>
<tr>
<td width="102%" colspan="2">注解</td>
</tr>
<tr>
<td width="102%" colspan="2"><p align="left">填充模式1——ALTERNATE:為判斷一個(gè)點(diǎn)是否位于填充區(qū),windows會(huì)從這個(gè)點(diǎn)到圖形外部畫一條假想的線。每與一條線相交,計(jì)數(shù)器就會(huì)增1。如最后一個(gè)記數(shù)是奇數(shù),則填充這個(gè)點(diǎn);如果是偶數(shù),則保留原樣不變<br>
填充模式2——WINDING:為判斷一個(gè)點(diǎn)是否位于填充區(qū),windows會(huì)從這個(gè)點(diǎn)到圖形外部畫一條假想的線。windows會(huì)跟蹤畫出每個(gè)頂點(diǎn)(線段)的方向。這條假想的線每次穿過一個(gè)頂點(diǎn)時(shí),而且頂點(diǎn)的Y方向?yàn)檎瑒t減一個(gè)記數(shù)。如結(jié)果記數(shù)不是零,就表明該點(diǎn)位于填充區(qū)域</td>
</tr>
</table>
</center></div><div align="center"><center>
<table border="0" width="100%" cellspacing="0" cellpadding="0">
<tr>
<td width="100%"><p align="right">Top</td>
</tr>
</table>
</center></div>
</body>
</html>
?? 快捷鍵說明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -