namespace Microsoft.Win32 { //KEYEVENTF定义 public static partial class NativeMethods { /// /// If specified, the scan code was preceded by a prefix byte that has the value 0xE0 (224). /// public const int KEYEVENTF_EXTENDEDKEY = 0x0001; /// /// If specified, the key is being released. If not specified, the key is being pressed. /// public const int KEYEVENTF_KEYUP = 0x0002; /// /// If specified, the system synthesizes a VK_PACKET keystroke. The wVk parameter must be zero. This flag can only be combined with the KEYEVENTF_KEYUP flag. For more information, see the Remarks section. /// public const int KEYEVENTF_UNICODE = 0x0004; /// /// If specified, wScan identifies the key and wVk is ignored. /// public const int KEYEVENTF_SCANCODE = 0x0008; } }