?? ptvisible.htm
字號:
<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>PtVisible</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">PtVisible</td>
</tr>
</table>
</center></div><div align="center"><center>
<table border="1" width="100%" bordercolorlight="#808080" cellspacing="0"
bordercolordark="#FFFFFF">
<tr>
<td width="100%" colspan="2">VB聲明</td>
</tr>
<tr>
<td width="100%" colspan="2">Declare Function PtVisible Lib "gdi32" Alias
"PtVisible" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long) As Long</td>
</tr>
<tr>
<td width="100%" colspan="2">說明</td>
</tr>
<tr>
<td width="100%" colspan="2">確定指定點是否可見(即,點是否在設備場景剪裁區內)</td>
</tr>
<tr>
<td width="100%" colspan="2">返回值</td>
</tr>
<tr>
<td width="100%" colspan="2">Long,若點在指定設備場景剪裁區內為非零值,否則為0</td>
</tr>
<tr>
<td width="100%" colspan="2">參數表</td>
</tr>
<tr>
<td width="25%">參數</td>
<td width="75%">類型及說明</td>
</tr>
<tr>
<td width="25%">hdc</td>
<td width="75%">Long,設備場景句柄</td>
</tr>
<tr>
<td width="25%">x</td>
<td width="75%" rowspan="2">Long,要檢查的點的x,y坐標</td>
</tr>
<tr>
<td width="25%">y</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
Ctrl + =
減小字號
Ctrl + -