Setforegroundwindow 将窗口置最前

Setforegroundwindow 将窗口置最前

   windows下简单的调用Setforegroundwindow并不能将窗口置最前，我找到三种方法可以实现该功能。 1、先置topmost，然后取消  SetWindowPos(HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);  SetWindowPos(HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE); 2、改变系统环境参数 这些定义winuser.h里都有的 #define SPI_GETFOREGROUNDLOCKTIMEOUT 0x2000 #define SPI_SETFOREGROUNDLOCKTIMEOUT 0x2001 #define SPIF_UPDATEINIFILE 0x0001 #define SPIF_SENDWININICHANGE 0x0002

先设置环境变量DWORD lockTime ＝ 0;SystemParametersInfo(SPI_GETFOREGROUNDLOCKTIMEOUT, 0, &lockTime, 0);SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, 0,                      SPIF_SENDWININICHANGE | SPIF_UPDATEINIFILE);

退出程序时还原环境变量

SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, lockTime, SPIF_SENDWININICHANGE | SPIF_UPDATEINIFILE); 3、AllowSetForegroundWindow  HMODULE hModule = NULL; ASFW_PTR pProcAddress = NULL;  hModule = GetModuleHandle("User32");  if (hModule != NULL)  pProcAddress = (ASFW_PTR)GetProcAddress(hModule, "AllowSetForegroundWindow");  if (pProcAddress != NULL) {  nResult = (*pProcAddress)(-1);   if (nResult == FALSE )   MessageBox(NULL, "Could not set foreground permission", NULL, MB_OK | MB_ICONERROR); }