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来自「VB技巧问答10000例,是一个教程」· HTML 代码 · 共 27 行
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<title>Re: 急!!急!! 救命!! 怎样验测任何一个Object 的每一个Pixel之颜色 ??</title>
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<h1>Re: 急!!急!! 救命!! 怎样验测任何一个Object 的每一个Pixel之颜色 ??</h1>
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Posted by <a href="mailto:cary@autumn.ccl.itri.org.tw">Cary</a> on October 29, 1998 at 00:07:42:<p>
In Reply to: <a href="6761.html">急!!急!! 救命!! 怎样验测任何一个Object 的每一个Pixel之颜色 ??</a> posted by 杀手 on October 26, 1998 at 18:14:28:<p>
: 怎样验测任何一个Object 的每一个Pixel之颜色 ??e.g. RichTextBox, Image, DGrid etc...<br>下面程式希望可以 Work!<br>注意一下 i, j 是否对调。<p>Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long<br>Private Declare Function ReleaseDC Lib "user32" (ByVal hwnd As Long, ByVal hdc As Long) As Long<br>Declare Function GetPixel Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long) As Long<p>Sub ShowPixels(Ctl as Control)<br> Dim DC As Long<br> Dim i As Integer, j As Integer<br> DC = GetDC(Ctl.hwnd)<br> For i = 0 To 20<br> For j = 0 To 20<br> Debug.Print Format(Hex$(GetPixel(DC, i, j)), "000000"); " ";<br> Next<br> Debug.Print<br> Next<br> ReleaseDC Me.RichTextBox1.hwnd, DC<br>End Sub<p>
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