var ExeHandle:Thandle;
begin
//获得句柄-->标题不确定
ExeHandle:=FindWindow(nil,'想关闭的程序的标题');//关闭程序
if ExeHandle<>0 then
SendMessage(ExeHandle,WM_Close,0,0)
end;
var ExeHandle:Thandle;
begin
//获得句柄-->标题不确定
ExeHandle:=FindWindow('notepad',nil);//'');//返回句柄
//关闭程序
if ExeHandle<>0 then
SendMessage(ExeHandle,WM_Close,0,0)
else
Application.MessageBox('没有打开“记事本”程序!','提示',
MB_IconInformation+MB_OK);
end;