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<title>Windows95/98下怎样隐藏应用程序不让它出现在CTRL-ALT-DEL对话框中？</title>
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<div align="center" class="p14"><font color="#000000">Windows95/98下怎样隐藏应用程序不让它出现在CTRL-ALT-DEL对话框中？</font></div>
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<p><font color="#000000">把你的应用程序从CTRL-ALT-DEL对话框中隐藏的一个简单办法是去应用程序的标题。如果一个程序的主窗口没以标题，Windows95不把它放到CTRL-ALT-DEL对话框中。清除标题属性的最好地方是在WinMain函数里。</font></p>
<pre><span style="BACKGROUND-COLOR: silver"><font color="#000000">WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, </font></span><font color="#000000"><span style="BACKGROUND-COLOR: silver"><b>int</b>)</span>
<span style="BACKGROUND-COLOR: silver">{</span>
<span style="BACKGROUND-COLOR: silver"> <b>try</b></span>
<span style="BACKGROUND-COLOR: silver"> {</span>
<span style="BACKGROUND-COLOR: silver"> Application->Title = "";</span>
<span style="BACKGROUND-COLOR: silver"> Application->Initialize();</span>
<span style="BACKGROUND-COLOR: silver"> Application->CreateForm(<b>__classid</b>(TForm1), &Form1);</span>
<span style="BACKGROUND-COLOR: silver"> Application->Run();</span>
<span style="BACKGROUND-COLOR: silver"> }</span>
<span style="BACKGROUND-COLOR: silver"> <b>catch</b> (Exception &exception)</span>
<span style="BACKGROUND-COLOR: silver"> {</span>
<span style="BACKGROUND-COLOR: silver"> Application->ShowException(&exception);</span>
<span style="BACKGROUND-COLOR: silver"> }</span>
<span style="BACKGROUND-COLOR: silver"> <b>return</b> 0;</span>
<span style="BACKGROUND-COLOR: silver">}</span></font></pre>
<p><font color="#000000">另一种方法是：调用RegisterServiceProcess API 函数将程序注册成为一个服务模式程序。 RegisterServiceProcess是一个在Kernel32.dll里相关但无正式文件的函数。在MS
SDK头文件里没有该函数的原型说明，但在Borland import libraries for C++ Builder里能找到。很显然，这个函数的主要目的是创建一个服务模式程序。之所以说<i>很显然</i>，是因为MSDN里实质上对这个函数没有说什么。</font></p>
<p><font color="#000000">下面的例子代码演示了在Windows95/98下怎样通过使用RegisterServiceProcess来把你的程序从CTRL-ALT-DEL对话框中隐藏起来。</font></p>
<pre><span style="BACKGROUND-COLOR: silver"><font color="#000000">//------------Header file------------------------------</font></span><font color="#000000">
<span style="BACKGROUND-COLOR: silver"><b>typedef</b> DWORD (<b>__stdcall</b> *pRegFunction)(DWORD, DWORD);</span>
<span style="BACKGROUND-COLOR: silver"><b>class</b> TForm1 : public TForm</span>
<span style="BACKGROUND-COLOR: silver">{</span>
<span style="BACKGROUND-COLOR: silver"><b>__published:</b></span>
<span style="BACKGROUND-COLOR: silver"> TButton *Button1;</span>
<span style="BACKGROUND-COLOR: silver"><b>private</b>:</span>
<span style="BACKGROUND-COLOR: silver"> HINSTANCE hKernelLib;</span>
<span style="BACKGROUND-COLOR: silver"> pRegFunction RegisterServiceProcess;</span>
<span style="BACKGROUND-COLOR: silver"><b>public</b>:</span>
<span style="BACKGROUND-COLOR: silver"> <b>__fastcall</b> TForm1(TComponent* Owner);</span>
<span style="BACKGROUND-COLOR: silver"> <b>__fastcall</b> ~TForm1();</span>
<span style="BACKGROUND-COLOR: silver">};</span>
<span style="BACKGROUND-COLOR: silver">//-----------CPP file------------------------------</span>
<span style="BACKGROUND-COLOR: silver">#include "Unit1.h"</span>
<span style="BACKGROUND-COLOR: silver">#define RSP_SIMPLE_SERVICE 1</span>
<span style="BACKGROUND-COLOR: silver">#define RSP_UNREGISTER_SERVICE 0</span>
<span style="BACKGROUND-COLOR: silver"><b>__fastcall</b> TForm1::TForm1(TComponent* Owner)</span>
<span style="BACKGROUND-COLOR: silver"> : TForm(Owner)</span>
<span style="BACKGROUND-COLOR: silver">{</span>
<span style="BACKGROUND-COLOR: silver"> hKernelLib = LoadLibrary("kernel32.dll");</span>
<span style="BACKGROUND-COLOR: silver"> <b>if</b>(hKernelLib)</span>
<span style="BACKGROUND-COLOR: silver"> {</span>
<span style="BACKGROUND-COLOR: silver"> RegisterServiceProcess =</span>
<span style="BACKGROUND-COLOR: silver"> (pRegFunction)GetProcAddress(hKernelLib,</span>
<span style="BACKGROUND-COLOR: silver"> "RegisterServiceProcess");</span>
<span style="BACKGROUND-COLOR: silver"> <b>if</b>(RegisterServiceProcess)</span>
<span style="BACKGROUND-COLOR: silver"> RegisterServiceProcess(GetCurrentProcessId(),</span>
<span style="BACKGROUND-COLOR: silver"> RSP_SIMPLE_SERVICE);</span>
<span style="BACKGROUND-COLOR: silver"> }</span>
<span style="BACKGROUND-COLOR: silver">}</span>
<span style="BACKGROUND-COLOR: silver"><b>__fastcall</b> TForm1::~TForm1()</span>
<span style="BACKGROUND-COLOR: silver">{</span>
<span style="BACKGROUND-COLOR: silver"> <b>if</b>(hKernelLib)</span>
<span style="BACKGROUND-COLOR: silver"> {</span>
<span style="BACKGROUND-COLOR: silver"> <b>if</b>(RegisterServiceProcess)</span>
<span style="BACKGROUND-COLOR: silver"> RegisterServiceProcess(GetCurrentProcessId(),</span>
<span style="BACKGROUND-COLOR: silver"> RSP_UNREGISTER_SERVICE);</span>
<span style="BACKGROUND-COLOR: silver"> FreeLibrary(hKernelLib);</span>
<span style="BACKGROUND-COLOR: silver"> }</span>
<span style="BACKGROUND-COLOR: silver">}</span>
<span style="BACKGROUND-COLOR: silver">//-------------------------------------------------</span></font></pre>
<p><b><font color="#000000">注:</font></b> <font color="#000000"> windows NT下没有<tt>RegisterServiceProcess函数。</tt></font></p>
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