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序号:65561 发表者:wuzhang 发表日期:2003-12-18 13:10:21
<br>主题:那位大侠有GetProcAddress()这个函数的例子?
<br>内容:那位大侠有GetProcAddress()这个函数的例子?急用!!!
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<font color=red>答案被接受</font><br>回复者:BigJames 回复日期:2003-12-18 13:27:08
<br>内容:MSDN上有啊!<BR><BR>===============================================<BR>The following example illustrates an important difference between run-time and load-time dynamic linking. If the MYPUTS.DLL file is not available, the application using load-time dynamic linking simply terminates. The run-time dynamic linking example, however, can respond to the error.<BR><BR>// File:&nbsp;&nbsp;RUNTIME.C<BR>// A simple program that uses LoadLibrary and <BR>// GetProcAddress to access myPuts from MYPUTS.DLL. <BR> <BR>#include &lt;stdio.h&gt; <BR>#include &lt;windows.h&gt; <BR> <BR>typedef VOID (*MYPROC)(LPTSTR); <BR> <BR>VOID main(VOID) <BR>{ <BR>&nbsp;&nbsp;&nbsp;&nbsp;HINSTANCE hinstLib; <BR>&nbsp;&nbsp;&nbsp;&nbsp;MYPROC ProcAdd; <BR>&nbsp;&nbsp;&nbsp;&nbsp;BOOL fFreeResult, fRunTimeLinkSuccess = FALSE; <BR> <BR>&nbsp;&nbsp;&nbsp;&nbsp;// Get a handle to the DLL module.<BR> <BR>&nbsp;&nbsp;&nbsp;&nbsp;hinstLib = LoadLibrary(&#34;myputs&#34;); <BR> <BR>&nbsp;&nbsp;&nbsp;&nbsp;// If the handle is valid, try to get the function address.<BR> <BR>&nbsp;&nbsp;&nbsp;&nbsp;if (hinstLib != NULL) <BR>&nbsp;&nbsp;&nbsp;&nbsp;{ <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ProcAdd = (MYPROC) GetProcAddress(hinstLib, &#34;myPuts&#34;); <BR> <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// If the function address is valid, call the function.<BR> <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (NULL != ProcAdd) <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;fRunTimeLinkSuccess = TRUE;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ProcAdd) (&#34;message via DLL function\n&#34;); <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR> <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Free the DLL module.<BR> <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;fFreeResult = FreeLibrary(hinstLib); <BR>&nbsp;&nbsp;&nbsp;&nbsp;} <BR> <BR>&nbsp;&nbsp;&nbsp;&nbsp;// If unable to call the DLL function, use an alternative.<BR> <BR>&nbsp;&nbsp;&nbsp;&nbsp;if (! fRunTimeLinkSuccess) <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;printf(&#34;message via alternative method\n&#34;); <BR>}<BR>Because the program uses run-time dynamic linking, you should not link with the import library when creating the program module.<BR><BR><BR><BR>===============================================
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回复者:绩奇 回复日期:2003-12-20 17:17:31
<br>内容:帮忙解释一下上边的一些较难语句
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