【解析_net框架下的gdi+编程】.htm

GDI编程的参考资料

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          <span class="unnamed3"><P class=MsoNormal style="MARGIN: 0cm 0cm 12pt; LINE-HEIGHT: 16pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align=center><A name=OLE_LINK1><B><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">解析<SPAN lang=EN-US>.Net</SPAN>框架下的<SPAN lang=EN-US>GDI+</SPAN>编程<SPAN lang=EN-US><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></SPAN></B></A></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 12pt; LINE-HEIGHT: 16pt; TEXT-ALIGN: center; mso-pagination: widow-orphan" align=center><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><BR></SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">作者：王凯明<SPAN lang=EN-US> &nbsp;&nbsp;&nbsp;</SPAN>本文选自：赛迪网<SPAN lang=EN-US>&nbsp;&nbsp;<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:chsdate w:st="on" IsROCDate="False" IsLunarDate="False" Day="17" Month="12" Year="2002">2002<SPAN lang=EN-US><SPAN lang=EN-US>年12</SPAN></SPAN><SPAN lang=EN-US><SPAN lang=EN-US>月17</SPAN></SPAN><SPAN lang=EN-US><SPAN lang=EN-US>日</SPAN></SPAN></st1:chsdate><o:p></o:p></SPAN></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">目前微软的</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt">.Net</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">框架正进一步发展，</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt">1.1</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">版本即将发布，伴随而来是增加了诸如命名空间（</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt">Namespace</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）、</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt">Windows Form</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt">GDI+</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt">CLR</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">等新概念、新机制。本文就来向大家介绍一下</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt">.Net</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">框架下</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt">GDI+</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">编程的一些基本知识。</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="mso-bidi-font-size: 10.5pt"> <SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">GDI+</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">是从<SPAN lang=EN-US>GDI</SPAN>演化而来的，但是在<SPAN lang=EN-US>Visual Studio</SPAN>的以前版本中使用<SPAN lang=EN-US>GDI</SPAN>是相当复杂的，而且工作量巨大。现在在<SPAN lang=EN-US>GDI+</SPAN>中，微软已经帮我们解决了许多问题，因而使用<SPAN lang=EN-US>GDI+</SPAN>编程将变得非常容易。 <SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">GDI+</SPAN></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">包含在<SPAN lang=EN-US>System.Drawing.Dll</SPAN>集合中，所有的<SPAN lang=EN-US>GDI+</SPAN>类包含在<SPAN lang=EN-US>System.Drawing</SPAN>，<SPAN lang=EN-US>System.Text</SPAN>，<SPAN lang=EN-US>System.Printing</SPAN>，<SPAN lang=EN-US>System.Internal</SPAN>，<SPAN lang=EN-US>System.Imaging</SPAN>，<SPAN lang=EN-US>System.Drawing2D</SPAN>以及<SPAN lang=EN-US>System.Design</SPAN>等命名空间中。 <SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">本文先向大家介绍一下图形类（<SPAN lang=EN-US>Graphics Class</SPAN>）。然后，会向大家介绍一些最常用的类和结构，包括画笔（<SPAN lang=EN-US>Pen</SPAN>）、画刷（<SPAN lang=EN-US>Brush</SPAN>）、字体（<SPAN lang=EN-US>Font</SPAN>）、颜色（<SPAN lang=EN-US>Color</SPAN>）等类或结构。文章的最后还给出了一些很有用的用<SPAN lang=EN-US>.Net</SPAN>框架的原生语言<SPAN lang=EN-US>C#</SPAN>实现的例子。 <SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p>&nbsp;</o:p></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.1pt; mso-char-indent-count: 2.0"><SPAN style="mso-bookmark: OLE_LINK1"><B><SPAN style="COLOR: #000099; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">图形类（<SPAN lang=EN-US>Graphics Class</SPAN>）</SPAN></B></SPAN><SPAN style="mso-bookmark: OLE_LINK1"><SPAN lang=EN-US style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 16pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-char-indent-count: 2.0" align=left><SPAN style="mso-bookmark: OLE_LINK1"><SPAN style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">我们用图形类的对象来表示<SPAN lang=EN-US>GDI+</SPAN>的图形表面。为了使用<SPAN lang=EN-US>GDI+</SPAN>，我们必须先建立一个图形类对象。通常，我们可以从<SPAN lang=EN-US>Paint</SPAN>这个事件获得图形类对象的一个引用或是通过重载方法<SPAN lang=EN-US>OnPaint</SPAN>来取得该对象。具体方法如下： <SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></SPAN></P>
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