📄 scrollwindow.htm
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<title>ScrollWindow</title>
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<td width="100%" height="16"><a name="ScrollWindow">ScrollWindow</a></td>
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<td width="100%" colspan="2">VB声明</td>
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<td width="100%" colspan="2">Declare Function ScrollWindow Lib "user32" Alias
"ScrollWindow" (ByVal hWnd As Long, ByVal XAmount As Long, ByVal YAmount As
Long, lpRect As RECT, lpClipRect As RECT) As Long</td>
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<td width="100%" colspan="2">说明</td>
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<td width="100%" colspan="2">滚动窗口客户区的全部或一部分</td>
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<td width="100%" colspan="2">返回值</td>
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<td width="100%" colspan="2">Long,非零表示成功,零表示失败。会设置<a
href="GetLastError.htm" tppabs="http://personal.hb.cninfo.net/~vbapi/GetLastError.htm">GetLastError</a></td>
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<td width="100%" colspan="2">参数表</td>
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<td width="25%">参数</td>
<td width="75%">类型及说明</td>
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<td width="25%">hWnd</td>
<td width="75%">Long,待滚动窗口的句柄</td>
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<td width="25%">XAmount</td>
<td width="75%">Long,水平滚动的距离。正值向右滚动,负值向左滚动</td>
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<td width="25%">YAmount</td>
<td width="75%">Long,垂直滚动的距离。正值向下滚动,负值向上滚动</td>
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<td width="25%">lpRect</td>
<td width="75%"><a href="RECT.htm" tppabs="http://personal.hb.cninfo.net/~vbapi/RECT.htm">RECT</a>,用客户区坐标表示的一个矩形,它定义了客户区要滚动的一个部分。如设为NULL,则滚动整个客户区。在NULL的情况下,子窗口和控件的位置也会随同任何无效区域移动。否则,子窗口和无效区域不会一起移动。因此,在滚动之前,如指定了lpRect,一个明智的做法是先调用<a
href="UpdateWindow.htm" tppabs="http://personal.hb.cninfo.net/~vbapi/UpdateWindow.htm">UpdateWindow</a>函数</td>
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<td width="25%">lpClipRect</td>
<td width="75%"><a href="RECT.htm" tppabs="http://personal.hb.cninfo.net/~vbapi/RECT.htm">RECT</a>,指定剪切区域。只有这个矩形的区域才可能滚动。该矩形优先于lpRect。可设为NULL</td>
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</center></div><div align="center"><center>
<table border="0" width="100%" cellspacing="0" cellpadding="0">
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<td width="100%"><p align="right"><a href="#ScrollWindow">Top</a></td>
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</center></div>
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