c++ builder 程序设计实用教程 - 3_1_2 标准对话框控件的应用 - 张晋 - 17xie.htm

已经消失的不易找到的C++ builder网络教程总结

lang=EN-US>3-13</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">所示，为改变了字体和颜色后的效果（注明：字体为小</SPAN><SPAN 
lang=EN-US>6</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">号，颜色为淡蓝）。</SPAN></P>
<P class=a><SPAN lang=EN-US><IMG height=194 
src="C++ Builder 程序设计实用教程 - 3_1_2 标准对话框控件的应用 - 张晋 - 17xie.files/6b94880302.jpg" 
width=286 v:shapes="_x0000_i1032"></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>3-13<SPAN style="mso-spacerun: yes">&nbsp; </SPAN></SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">字体和颜色效果</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'">编辑文本后，单击“存储文件”按钮，在窗体上就会弹出一个“另存为”对话框。在“另存为</SPAN><SPAN 
lang=EN-US>…</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">”对话框中选择一个有效的路径和文件名，单击“保存”按钮就完成了文本文件的保存工作。</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'">附程序完整源代码如下所示：</SPAN></P>
<DIV 
style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 0cm; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 0cm; PADDING-BOTTOM: 1pt; BORDER-LEFT: windowtext 1pt solid; PADDING-TOP: 1pt; BORDER-BOTTOM: windowtext 1pt solid; mso-border-alt: solid windowtext .5pt; mso-element: para-border-div">
<P class=a2 
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 1.0pt 0cm 1.0pt 0cm"><SPAN 
style="FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 'Times New Roman'">程序清单</SPAN></P></DIV>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//-----------------------------------------------------------------------<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'">#include 
&lt;vcl.h&gt;<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'">#pragma 
hdrstop<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'"><o:p>&nbsp;</o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'">#include 
"MemoControl.h"<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//-----------------------------------------------------------------------<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'">#pragma 
package(smart_init)<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'">#pragma 
resource "*.dfm"<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'">TForm1 
*Form1;<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//-----------------------------------------------------------------------<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'">__fastcall 
TForm1::TForm1(TComponent* Owner)<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </SPAN>: 
TForm(Owner)<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">{<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">}<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//-----------------------------------------------------------------------<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'"><o:p>&nbsp;</o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'">void 
__fastcall TForm1::FormCreate(TObject *Sender)<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">{<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;Memo1-&gt;Clear();<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">清空文本框</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;OpenDialog1-&gt;Title="</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">请选择一个文本文件：</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'">";<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置对话框标题</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;OpenDialog1-&gt;InitialDir="c:\\PWin98";<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置缺省文件目录</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;OpenDialog1-&gt;Filter="All 
Files(*.*)|*.*|Text Files(*.txt)|*.txt";<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置文件过滤条件</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;OpenDialog1-&gt;DefaultExt=String("TXT");<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置缺省扩展名</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;SaveDialog1-&gt;Title="</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">请选择一个文本文件：</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'">";<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置对话框标题</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;SaveDialog1-&gt;InitialDir="c:\\PWin98";<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置缺省文件目录</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;SaveDialog1-&gt;Filter="All 
Files(*.*)|*.*|Text Files(*.txt)|*.txt";<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置文件过滤条件</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;SaveDialog1-&gt;DefaultExt=String("TXT");<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置缺省扩展名</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;Button2-&gt;Enabled=false;<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置按钮有效状态</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;FontDialog1-&gt;Font=Form1-&gt;Memo1-&gt;Font;<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">Form1-&gt;ColorDialog1-&gt;Color=Form1-&gt;Memo1-&gt;Color;<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">对话框的初始化</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">}<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">//-----------------------------------------------------------------------<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'"><o:p>&nbsp;</o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'">void 
__fastcall TForm1::Button1Click(TObject *Sender)<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US 
style="FONT-FAMILY: 'Times New Roman'">{<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'">if 
(Form1-&gt;OpenDialog1-&gt;Execute())<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">打开一个对话框</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>{<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; 
</SPAN>Form1-&gt;Memo1-&gt;Lines-&gt;LoadFromFile(Form1-&gt;OpenDialog1-&gt;FileName);<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">打开一个文件</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; 
</SPAN>Form1-&gt;Button2-&gt;Enabled=true;<o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp; </SPAN>//</SPAN><SPAN 
style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">设置按钮有效状态</SPAN><SPAN 
lang=EN-US style="FONT-FAMILY: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=a3><SPAN lang=EN-US style="FONT-FAMILY: 'Tim