📄 c++ builder 程序设计实用教程 - 8_1 多媒体组件概述 - 张晋 - 17xie.htm
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<DIV class=Section1 style="LAYOUT-GRID: 15.6pt none">
<H2><A name=_Toc502915433></A><A name=_Toc392383532></A><A
name=_Toc392383437><SPAN style="mso-bookmark: _Toc392383532"><SPAN
style="mso-bookmark: _Toc502915433"><SPAN lang=EN-US>8.1<SPAN
style="mso-spacerun: yes"> </SPAN></SPAN></SPAN></SPAN></A><SPAN
style="mso-bookmark: _Toc392383437"><SPAN
style="mso-bookmark: _Toc392383532"><SPAN
style="mso-bookmark: _Toc502915433"><SPAN
style="FONT-FAMILY: 楷体_GB2312; mso-ascii-font-family: 'Times New Roman'">多媒体组件</SPAN></SPAN></SPAN></SPAN><SPAN
style="mso-bookmark: _Toc502915433"><SPAN
style="FONT-FAMILY: 楷体_GB2312; mso-ascii-font-family: 'Times New Roman'">概述</SPAN></SPAN></H2>
<P class=MsoNormalIndent><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在</SPAN><SPAN
lang=EN-US>CBuilder 5</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中，</SPAN><SPAN
lang=EN-US>MediaPlayer</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件通常位于组件工具栏上的</SPAN><SPAN
lang=EN-US>System</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件页上，在程序的设计过程中，用户可以通过以下几种方法添加</SPAN><SPAN
lang=EN-US>MediaPlayer</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件。</SPAN></P>
<P class=MsoNormal
style="MARGIN-LEFT: 42.5pt; TEXT-INDENT: -21.25pt; mso-list: l0 level1 lfo1; tab-stops: list 21.25pt"><SPAN
lang=EN-US
style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings"><SPAN
style="mso-list: Ignore">n<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在组件工具栏</SPAN><SPAN
lang=EN-US>System</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件页上用鼠标的左键双击</SPAN><SPAN
lang=EN-US>MediaPlayer</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件的图标，在窗体上就会自动的添加一个</SPAN><SPAN
lang=EN-US>MediaPlayer</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件；</SPAN></P>
<P class=MsoNormal
style="MARGIN-LEFT: 42.5pt; TEXT-INDENT: -21.25pt; mso-list: l0 level1 lfo1; tab-stops: list 21.25pt"><SPAN
lang=EN-US
style="FONT-FAMILY: Wingdings; mso-fareast-font-family: Wingdings; mso-bidi-font-family: Wingdings"><SPAN
style="mso-list: Ignore">n<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在组件工具栏</SPAN><SPAN
lang=EN-US>System</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件页上用鼠标的左键单击击</SPAN><SPAN
lang=EN-US>MediaPlayer</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件的图标，然后把鼠标移动到窗体上，按下的同时移动鼠标，在窗体上就会添加一个</SPAN><SPAN
lang=EN-US>MediaPlayer</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件。</SPAN></P>
<P class=MsoNormalIndent><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如图</SPAN><SPAN
lang=EN-US>8-1</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">所示即为添加组件后的窗体。</SPAN></P>
<P class=a0><SPAN lang=EN-US><IMG height=202 src="" width=303
v:shapes="_x0000_i1025"></SPAN></P>
<P class=MsoCaption><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">图</SPAN><SPAN
lang=EN-US>8-1<SPAN style="mso-spacerun: yes"> </SPAN></SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">窗体上的</SPAN><SPAN
lang=EN-US>MediaPlayer</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件</SPAN></P>
<P class=MsoNormalIndent><SPAN lang=EN-US>MediaPlayer</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件有很多的属性和事件，能够熟练的运用这些属性和事件是进行多媒体程序设计的基础，在本节中，将会对</SPAN><SPAN
lang=EN-US>MediaPlayer</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件中常用的属性和事件作一个简单的介绍，详细的说明请读者参见有关的技术手册。</SPAN></P>
<P class=MsoNormalIndent><SPAN lang=EN-US>MediaPlayer</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">组件中常用的属性如表</SPAN><SPAN
lang=EN-US>8-1</SPAN><SPAN
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">所示。</SPAN></P>
<P class=a><SPAN
style="FONT-FAMILY: 黑体; mso-ascii-font-family: 'Times New Roman'">表</SPAN><SPAN
lang=EN-US>8-1<SPAN style="mso-spacerun: yes">
</SPAN>MediaPlayer</SPAN><SPAN
style="FONT-FAMILY: 黑体; mso-ascii-font-family: 'Times New Roman'">组件常用的属性</SPAN></P>
<DIV align=center>
<TABLE class=MsoNormalTable
style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-top-alt: solid black 1.5pt; mso-border-bottom-alt: solid black 1.5pt; mso-yfti-tbllook: 31; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt; mso-border-insideh: .75pt solid black; mso-border-insidev: .75pt solid black"
cellSpacing=0 cellPadding=0 border=1>
<TBODY>
<TR style="mso-yfti-irow: 0; mso-yfti-firstrow: yes">
<TD
style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 162.05pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; mso-border-top-alt: solid windowtext 1.0pt; mso-border-bottom-alt: solid windowtext .5pt; mso-border-right-alt: solid black .75pt"
vAlign=top width=216>
<P class=a1><SPAN lang=EN-US>Anchors</SPAN></P></TD>
<TD
style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 110.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; mso-border-top-alt: windowtext 1.0pt; mso-border-bottom-alt: windowtext .5pt; mso-border-right-alt: black .75pt; mso-border-left-alt: black .75pt; mso-border-style-alt: solid"
vAlign=top width=147>
<P class=a1><SPAN lang=EN-US>AutoEnable</SPAN></P></TD>
<TD
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 146.45pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; mso-border-top-alt: solid windowtext 1.0pt; mso-border-bottom-alt: solid windowtext .5pt; mso-border-left-alt: solid black .75pt"
vAlign=top width=195>
<P class=a1><SPAN lang=EN-US>AutoOpen</SPAN></P></TD></TR>
<TR style="mso-yfti-irow: 0; mso-yfti-firstrow: yes">
<TD
style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 162.05pt; PADDING-TOP: 0cm; BORDER-BOTTOM: black 1pt solid; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid black .75pt; mso-border-right-alt: solid black .75pt"
vAlign=top width=216>
<P class=a1><SPAN lang=EN-US>AutoRewind</SPAN></P></TD>
<TD
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