?? gettextextentpoint.htm
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<td width="100%" height="16">GetTextExtentPoint, GetTextExtentPoint32</td>
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<td width="100%" colspan="2">VB聲明</td>
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<td width="100%" colspan="2">Declare Function GetTextExtentPoint& Lib
"gdi32" Alias "GetTextExtentPointA" (ByVal hdc As Long, ByVal
lpszString As String, ByVal cbString As Long, lpSize As SIZE)<br>
Declare Function GetTextExtentPoint32& Lib "gdi32" Alias
"GetTextExtentPoint32A" (ByVal hdc As Long, ByVal lpsz As String, ByVal cbString
As Long, lpSize As SIZE)</td>
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<td width="100%" colspan="2">說明</td>
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<td width="100%" colspan="2">判斷一個字串的大小（范圍）。在Win32環境中，最好使用GetTextExtentPoint32，它提供了更精確的計算結果</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，零表示失敗。會設置<a
href="GetLastError.htm">GetLastError</a></td>
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<td width="100%" colspan="2">參數表</td>
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<td width="25%">參數</td>
<td width="75%">類型及說明</td>
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<td width="25%">hdc</td>
<td width="75%">Long，設備場景的句柄</td>
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<td width="25%">lpszString</td>
<td width="75%">String，欲度量其范圍（extent）的一個字串</td>
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<td width="25%">cbString</td>
<td width="75%">Long，lpszString字串的長度</td>
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<td width="25%">lpSize</td>
<td width="75%">SIZE，這個結構用于裝載字串范圍的高度和寬度信息</td>
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<td width="100%" colspan="2">注解</td>
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<td width="100%" colspan="2"><p align="left">這個函數不會將剪切區考慮在內，但卻考慮到了由<a
href="SetTextCharacterExtra.htm">SetTextCharacterExtra</a>函數設置的任何額外空間（間距）</td>
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<td width="100%"><p align="right">Top</td>
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