?? redrawwindow.htm
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<title>RedrawWindow</title>
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<td width="100%" height="16"><a name="RedrawWindow">RedrawWindow</a></td>
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<td width="102%" colspan="3">VB聲明</td>
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<td width="102%" colspan="3">Declare Function RedrawWindow Lib "user32" Alias
"RedrawWindow" (ByVal hwnd As Long, lprcUpdate As RECT, ByVal hrgnUpdate As
Long, ByVal fuRedraw As Long) As Long</td>
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<td width="102%" colspan="3">說明</td>
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<td width="102%" colspan="3">根據(jù)fuRedraw旗標(biāo)的設(shè)置,重畫全部或部分窗口</td>
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<td width="102%" colspan="3">返回值</td>
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<td width="102%" colspan="3">Long,非零表示成功,零表示失敗。會(huì)設(shè)置<a
href="GetLastError.htm" tppabs="http://www.gxbcts.com/airfly/api/papi/GetLastError.htm">GetLastError</a></td>
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<td width="102%" colspan="3">參數(shù)表</td>
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<td width="25%">參數(shù)</td>
<td width="77%" colspan="2">類型及說明</td>
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<td width="25%">hwnd</td>
<td width="77%" colspan="2">Long,要重畫的窗口的句柄。零表示更新桌面窗口</td>
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<td width="25%">lprcUpdate</td>
<td width="77%" colspan="2">RECT,窗口中需要重畫的一個(gè)矩形區(qū)域</td>
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<td width="25%">hrgnUpdate</td>
<td width="77%" colspan="2">Long,一個(gè)“區(qū)”的句柄,這個(gè)區(qū)描述了要重畫的窗口區(qū)域?!皡^(qū)”:Region</td>
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<td width="25%" rowspan="13">fuRedraw</td>
<td width="77%" colspan="2">Long,規(guī)定具體重畫操作的旗標(biāo)。下列常數(shù)可組合使用,從而進(jìn)行復(fù)雜的重畫行動(dòng)</td>
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<td width="37%">RDW_ERASE</td>
<td width="38%">重畫前,先清除重畫區(qū)域的背景。也必須指定RDW_INVALIDATE</td>
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<td width="37%">RDW_FRAME</td>
<td width="38%">如非客戶區(qū)包含在重畫區(qū)域中,則對(duì)非客戶區(qū)進(jìn)行更新。也必須指定RDW_INVALIDATE</td>
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<td width="37%">RDW_INTERNALPAINT</td>
<td width="38%">即使窗口并非無效,也向其投遞一條WM_PAINT消息</td>
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<td width="37%">RDW_INVALIDATE</td>
<td width="38%">禁用(屏蔽)重畫區(qū)域</td>
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<td width="37%">RDW_NOERASE</td>
<td width="38%">禁止刪除重畫區(qū)域的背景</td>
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<td width="37%">RDW_NOFRAME</td>
<td width="38%">禁止非客戶區(qū)域重畫(如果它是重畫區(qū)域的一部分)。也必須指定RDW_VALIDATE</td>
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<td width="37%">RDW_NOINTERNALPAINT</td>
<td width="38%">禁止內(nèi)部生成或由這個(gè)函數(shù)生成的任何待決WM_PAINT消息。針對(duì)無效區(qū)域,仍會(huì)生成WM_PAINT消息</td>
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<td width="37%">RDW_VALIDATE</td>
<td width="38%">檢驗(yàn)重畫區(qū)域</td>
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<td width="37%">RDW_ERASENOW</td>
<td width="38%">立即刪除指定的重畫區(qū)域</td>
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<td width="37%">RDW_UPDATENOW</td>
<td width="38%">立即更新指定的重畫區(qū)域</td>
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<td width="37%">RDW_ALLCHILDREN</td>
<td width="38%">重畫操作包括子窗口(前提是它們存在于重畫區(qū)域)</td>
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<td width="37%">RDW_NOCHILDREN</td>
<td width="38%">重畫操作排除子窗口(前提是它們存在于重畫區(qū)域)</td>
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<td width="102%" colspan="3">注解</td>
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<td width="102%" colspan="3"><p align="left">如針對(duì)桌面窗口應(yīng)用這個(gè)函數(shù),則應(yīng)用程序必須用RDW_ERASE旗標(biāo)重畫桌面</td>
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<td width="100%"><p align="right"><a href="#RedrawWindow">Top</a></td>
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