show_current.cpp

最新推荐文章于 2025-09-18 12:37:21 发布

原创最新推荐文章于 2025-09-18 12:37:21 发布 · 351 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#winapi #thread #callback #include #command #report

S 专栏收录该内容

172 篇文章

订阅专栏

本文介绍了一个简单的Windows环境下使用C/C++创建线程并显示包含进程和线程信息的消息框的示例。该示例展示了如何通过CreateThread函数启动一个子线程，并在子线程中调用MessageBox函数来显示当前进程和线程的信息。

name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&dt=1194442938015&lmt=1194190197&format=336x280_as&output=html&correlator=1194442937843&url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&color_bg=FFFFFF&color_text=000000&color_link=000000&color_url=FFFFFF&color_border=FFFFFF&ad_type=text&ga_vid=583001034.1194442938&ga_sid=1194442938&ga_hid=1942779085&flash=9&u_h=768&u_w=1024&u_ah=740&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"> #include <genstub.cpp>

// Child thread procedure just displays a message box with information.
DWORD WINAPI ChildThreadProc(HWND hWnd)
{
    TCHAR szBuffer[256];
    wsprintf(szBuffer,
             "Process Handle = %x, ID = %x, Thread: Handle = %x, ID = %x",
             GetCurrentProcess(), GetCurrentProcessId(),
             GetCurrentThread(), GetCurrentThreadId());
    MessageBox( hWnd, szBuffer, "Process/Thread Report", MB_OK );
    ExitThread(TRUE);
}

// Main Window Procedure
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
   switch (uMsg)
   {
         case WM_COMMAND:       // Process menu items.
               switch ( LOWORD( wParam ) )
               {
                  case IDM_TEST:
                  {
                     DWORD dwChildId;
                     CreateThread( NULL, 0, ChildThreadProc, hWnd, 0, &dwChildId );
                  }
                  break;
                  case IDM_EXIT:
                       DestroyWindow( hWnd );
                       break;
               }
         break;
         case WM_DESTROY:
               PostQuitMessage( 0 );
               break;
         default:
               return DefWindowProc( hWnd, uMsg, wParam, lParam );
   }
   return NULL;
}