#include void ForceSetForegroundWindow(HWND hwnd) { DWORD dwFGThreadId, dwFGProcessId; DWORD dwThisThreadId; HWND hwndForeground = GetForegroundWindow(); dwFGThreadId = GetWindowThreadProcessId(hwndForeground, &dwFGProcessId); dwThisThreadId = GetCurrentThreadId(); AttachThreadInput(dwThisThreadId, dwFGThreadId,TRUE); SetForegroundWindow(hwnd); BringWindowToTop(hwnd); SetFocus(hwnd); AttachThreadInput(dwThisThreadId, dwFGThreadId,FALSE); }