?? getdibits.htm
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<td width="100%" height="16"><a name="GetDIBits">GetDIBits</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 GetDIBits Lib "gdi32" Alias
"GetDIBits" (ByVal aHDC As Long, ByVal hBitmap As Long, ByVal nStartScan As
Long, ByVal nNumScans As Long, lpBits As Any, lpBI As BITMAPINFO, ByVal wUsage As Long) As
Long</td>
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<td width="102%" colspan="3">說(shuō)明</td>
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<td width="102%" colspan="3">將來(lái)自一幅位圖的二進(jìn)制位復(fù)制到一幅與設(shè)備無(wú)關(guān)的位圖里</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。在Windows 95中，返回值是返回的掃描線數(shù)量</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(lèi)型及說(shuō)明</td>
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<td width="25%">aHDC</td>
<td width="77%" colspan="2">Long，定義了與設(shè)備有關(guān)位圖hBitmap的配置信息的一個(gè)設(shè)備場(chǎng)景的句柄</td>
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<td width="25%">hBitmap</td>
<td width="77%" colspan="2">Long，源位圖的句柄。絕對(duì)不能將這幅位圖選入設(shè)備場(chǎng)景</td>
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<td width="25%">nStartScan</td>
<td width="77%" colspan="2">Long，欲復(fù)制到DIB中的第一條掃描線的編號(hào)</td>
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<td width="25%">nNumScans</td>
<td width="77%" colspan="2">Long，欲復(fù)制的掃描線數(shù)量</td>
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<td width="25%">lpBits</td>
<td width="77%" colspan="2">Any，指向一個(gè)緩沖區(qū)的指針。這個(gè)緩沖區(qū)將用于裝載采用DIB格式的信息，但不取回?cái)?shù)據(jù)（用ByVal傳遞零值）</td>
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<td width="25%">lpBI</td>
<td width="77%" colspan="2">BITMAPINFO，對(duì)lpBits DIB的格式及顏色進(jìn)行說(shuō)明的一個(gè)結(jié)構(gòu)。在BITMAPINFOHEADER結(jié)構(gòu)中，從biSize到biCompression之間的所有字段都必須初始化</td>
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<td width="25%" rowspan="3">wUsage</td>
<td width="77%" colspan="2">Long，下述常數(shù)之一：</td>
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<td width="37%">DIB_PAL_COLORS</td>
<td width="38%">在顏色表中裝載一個(gè)16位所以數(shù)組，它們與當(dāng)前選定的調(diào)色板有關(guān)</td>
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<td width="37%">DIB_RGB_COLORS</td>
<td width="38%">在顏色表中裝載RGB顏色</td>
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<td width="102%" colspan="3">注解</td>
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<td width="102%" colspan="3">起始掃描線與起點(diǎn)有關(guān)。除非將BITMAPINFOHEADER結(jié)構(gòu)的biHeight字段設(shè)為負(fù)值，否則起點(diǎn)就位于左下角</td>
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<td width="100%"><p align="right"><a href="#GetDIBits">Top</a></td>
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