VC 获取任务管理器进程项ListView控件内的内容

#define _AFXDLL #include <afx.h> #include <iostream> #include <iomanip> #include <Windows.h> #include <string> int main() { //获取窗口句柄 HWND hTaskMsgWnd = ::FindWindow("#32770", "Windows 任务管理器"); HWND hProcWnd = ::FindWindowEx(hTaskMsgWnd, NULL, "#32770", "Processes"); HWND hProcListView = ::FindWindowEx(hProcWnd, NULL, "SysListView32", NULL); HWND hHeaderWnd = (HWND)::SendMessage(hProcListView, LVM_GETHEADER, 0, 0); //获取行数与列数 int rows = (int)::SendMessage(hProcListView, LVM_GETITEMCOUNT, 0, 0); int cols = (int)::SendMessage(hHeaderWnd, HDM_GETITEMCOUNT, 0, 0); //获取窗口线程与进程ID DWORD dwProcID = 0; ::GetWindowThreadProcessId(hProcListView, &dwProcID); //打开进程 //注意, 如果你的电脑是64位系统, 那么"任务管理器"进程则是64位的, 使用OpenProcess实际返回的是一个64位的句柄值 //如果, 你的程序是采用W32编译器, 那么定义的进程句柄变量实际上是一个32位的句柄变量 //现在, 如果你用32位的句柄变量来保存64位的句柄值, 它实际上是保存了一个被截取后的64位的句柄值, 这个值是错误的 //这时, 你必须把编译器也调整为64位, 使句柄值内存长度统一 HANDLE hProcess = NULL; hProcess = ::OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwProcID); //进程空间的虚拟内存分配 void* pVirBuf = ::VirtualAllocEx(hProcess, NULL, 4096, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE); for (int iRowIdx = 0; iRowIdx < rows; iRowIdx++) { for (int iColIdx = 0; iColIdx < cols; iColIdx++) { //填充单个子项的相关参数 LVITEM item; item.mask = LVIF_TEXT; item.iItem = iRowIdx; item.iSubItem = iColIdx; item.cchTextMax = 256; item.pszText = (LPSTR)((int)pVirBuf + sizeof(LVITEM)); //将单个子项的数据写入至进程虚拟内存空间pVirBuf内 //注意, X64位下不要使用DWORD, DWORD=4BYTE, SIZE_T=8BYTE //如果使用DWORD, 会报错 "Run-Time Check Failure #2 - Stack around the variable 'xxx' was corrupted.", 一般由变量越界导致 LONGLONG dwWriteByte = 0; ::WriteProcessMemory(hProcess, pVirBuf, &item, sizeof(LVITEM), (SIZE_T*)&dwWriteByte); //发送获取项目的Windows消息 ::SendMessage(hProcListView, LVM_GETITEM, 0, (LPARAM)pVirBuf); //将虚拟内存第sizeof(LVITEM)之后的数据读出, 保存至变量内 LONGLONG dwReadByte = 0; std::string content(256, '\0'); ::ReadProcessMemory(hProcess, (LPCVOID)((int)pVirBuf + sizeof(LVITEM)), const_cast<char*>(content.c_str()), 255, (SIZE_T*)&dwReadByte); //输出 std::cout << content.c_str() << " "; } std::cout << std::endl; } //释放虚拟内存 ::VirtualFreeEx(hProcess, pVirBuf, 4096, MEM_RELEASE); ::CloseHandle(hProcess); return 0; }