📄 在dll中使用资源(1).htm
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lang=EN-US>2005-01-25</span>】<span lang=EN-US> </span>【查看： <span
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mso-pagination:widow-orphan'><span style='font-size:10.0pt;font-family:宋体;
mso-bidi-font-family:宋体;mso-font-kerning:0pt'>在<span lang=EN-US>DLL</span>中使用资源（一）<span
lang=EN-US> <br>
</span> 现在最常看见的关于<span lang=EN-US>DLL</span>的问题就是如何在<span lang=EN-US>DLL</span>中使用对话框，这是一个很普遍的关于如何在<span
lang=EN-US>DLL</span>中使用资源的问题。这里我们从<span lang=EN-US>Win32 DLL</span>和<span
lang=EN-US>MFC DLL</span>两个方面来分析并解决这个问题。<span lang=EN-US> <br>
<br>
1</span>．<span lang=EN-US>Win32 DLL <br>
</span> 在<span lang=EN-US>Win32 DLL</span>中使用对话框很简单，你只需要在你的<span lang=EN-US>DLL</span>中添加对话框资源，而且可以在对话框上面设置你所需要的控件。然后使用<span
lang=EN-US>DialogBox</span>或者<span lang=EN-US>CreateDialog</span>这两个函数（或相同作用的其它函数）来创建对话框，并定义你自己的对话框回调函数处理对话框收到的消息。下面通过一个具体实例来学习如何在<span
lang=EN-US>Win32 DLL</span>中使用对话框，可以按照以下步骤来完成这个例子：<span lang=EN-US> <br>
<br>
<br>
<br>
1</span>）在<span lang=EN-US>VC</span>菜单中<span lang=EN-US>File->New</span>新建一个命名为<span
lang=EN-US>UseDlg</span>的<span lang=EN-US>Win32 Dynamic-Link Library</span>工程，下一步选择<span
lang=EN-US>A simple DLL project</span>。<span lang=EN-US> <br>
<br>
<br>
<br>
2</span>）在<span lang=EN-US>VC</span>菜单中<span lang=EN-US>Insert->Resource</span>添加一个<span
lang=EN-US>ID</span>为<span lang=EN-US>IDD_DLG_SHOW</span>的<span lang=EN-US>Dialog</span>资源，将此<span
lang=EN-US>Dialog</span>上的<span lang=EN-US>Cancel</span>按钮去掉，仅保留<span
lang=EN-US>OK</span>按钮。再添加一个<span lang=EN-US>ID</span>为<span lang=EN-US>IDD_ABOUTBOX</span>的对话框，其<span
lang=EN-US>Caption</span>为<span lang=EN-US>About</span>。保存此资源，将资源文件命名为<span
lang=EN-US>UseDlg.rc</span>。并将<span lang=EN-US>resource.h</span>和<span
lang=EN-US>UseDlg.rc</span>加入到工程里面。<span lang=EN-US> <br>
<br>
<br>
<br>
3</span>）在<span lang=EN-US>UseDlg.app</span>中包含<span lang=EN-US>resource.h</span>，并添加如下代码：<span
lang=EN-US> <br>
<br>
<br>
<br>
HINSTANCE hinst = NULL; <br>
<br>
HWND hwndDLG = NULL; <br>
<br>
<br>
<br>
BOOL CALLBACK DlgProc(HWND hDlg, UINT message, <br>
<br>
WPARAM wParam, LPARAM lParam); <br>
<br>
BOOL CALLBACK AboutProc(HWND hDlg, UINT message, <br>
<br>
WPARAM wParam, LPARAM lParam); <br>
<br>
extern "C" __declspec(dllexport) void ShowDlg(); <br>
<br>
<br>
<br>
BOOL APIENTRY DllMain( HANDLE hModule, <br>
<br>
</span> <span lang=EN-US> DWORD ul_reason_for_call, <br>
<br>
</span> <span lang=EN-US> LPVOID lpReserved <br>
<br>
</span> <span lang=EN-US>) <br>
<br>
{ <br>
<br>
</span> <span lang=EN-US> switch(ul_reason_for_call) <br>
<br>
</span> <span lang=EN-US> { <br>
<br>
</span> <span lang=EN-US> case DLL_PROCESS_ATTACH: <br>
<br>
</span> <span lang=EN-US> hinst = (HINSTANCE)hModule; <br>
<br>
</span> <span lang=EN-US> case DLL_PROCESS_DETACH: <br>
<br>
</span> <span lang=EN-US> break; <br>
<br>
</span> <span lang=EN-US> } <br>
<br>
</span> <span lang=EN-US>return TRUE; <br>
<br>
} <br>
<br>
<br>
<br>
extern "C" __declspec(dllexport) void ShowDlg() <br>
<br>
{ <br>
<br>
</span> <span lang=EN-US> hwndDLG =
CreateDialog(hinst,MAKEINTRESOURCE(IDD_DLG_SHOW), <br>
<br>
NULL,(DLGPROC)DlgProc); <br>
<br>
</span> <span lang=EN-US> ShowWindow(hwndDLG, SW_SHOW); <br>
<br>
} <br>
<br>
<br>
<br>
BOOL CALLBACK DlgProc(HWND hDlg, UINT message, <br>
<br>
WPARAM wParam, LPARAM lParam) <br>
<br>
{ <br>
<br>
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