tabsblobstream_seek.htm

来自「Absolute Database 5.12 src. Absolute Da」· HTM 代码 · 共 84 行

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<span style="font-family:Helvetica,Arial; font-size:12pt; color:#000000"><b>TABSBlobStream.Seek</b><span style="font-family:Helvetica,Arial; font-size:12pt; color:#0000FF"><b>
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</b></span><span style="font-family:Helv; font-size:9pt; color:#000000"><span style="font-family:Helv; font-size:9pt; color:#7F0000"><a href=tabsblobstream.htm>TABSBlobStream</a></span></span><span style="font-family:Helvetica,Arial; font-size:12pt; color:#000000"><b>
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Resets the current position of the TABSBlobStream object.
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<b>function</b> Seek(Offset: Longint; Origin: Word): Longint;
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<b>Description</b>
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Use Seek to move the current position within the BLOB data by the indicated offset. Seek allows an application to read from or write to a particular location within the BLOB data.
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The Origin parameter indicates how to interpret the Offset parameter. Origin should be one of the following values:
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000"><b><u>Value</u></b>
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000"><b><u>Meaning</u></b>
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">soFromBeginning
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Offset starts from the beginning of the BLOB data. Seek moves to the position Offset. Offset must be &gt;= 0.
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">soFromCurrent
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Offset starts from the current position in the BLOB data. Seek moves to Position + Offset.
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">soFromEnd
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<span style="font-family:Helvetica,Arial; font-size:10pt; color:#000000">Offset counts from the end of the BLOB data. Offset must be &lt;= 0 to indicate the number of bytes before the end of the BLOB.
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Seek returns the new value of the Position property, the new current position in the BLOB data.
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tabsblobstream_seek.htm - 源码说明

本页面展示了「Absolute Database 5.12 src. Absolute Database lets you forget the Borland Database Engine (BDE). Th」中的 tabsblobstream_seek.htm 源码文件，采用 HTM 编程语言编写，共 84 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

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