代码求解释
下面的代码可能是用C写的，我没学过C，看不懂。谁能帮我解释下或者翻译成c#，谢谢!
typedef struct tagWNDINFO...{DWORD dwProcessId;HWND hWnd;} WNDINFO, *LPWNDINFO;BOOL CALLBACK YourEnumProc(HWND hWnd,LPARAM lParam)...{DWORD dwProcessId;GetWindowThreadProcessId(hWnd, &dwProcessId);LPWNDINFO pInfo = (LPWNDINFO)lParam;if(dwProcessId == pInfo->dwProcessId)...{pInfo->hWnd = hWnd;return FALSE;}return TRUE;}HWND GetProcessMainWnd(DWORD dwProcessId)...{WNDINFO wi;wi.dwProcessId = dwProcessId;wi.hWnd = NULL;EnumWindows(YourEnumProc,(LPARAM)&wi);return wi.hWnd;}