/// <summary>
/// DLLを動的にロードし、関数ポインタを格納する。
/// </summary>
/// <param name="DllName">ロードするDLL名</param>
private static void Load(string DllName)
{
_IsEnable = false;
//DLLを読み込み
hModule = NativeMethods.LoadLibrary(DllName);
//失敗したら終了
if (hModule == IntPtr.Zero)
{
return;
}
//関数アドレスの取得
XInputEnable_FuncAdd = NativeMethods.GetProcAddress(hModule, "XInputEnable");
XInputGetState_FuncAdd = NativeMethods.GetProcAddress(hModule, "XInputGetState");
XInputSetState_FuncAdd = NativeMethods.GetProcAddress(hModule, "XInputSetState");
XInputGetBatteryInfomation_FuncAdd = NativeMethods.GetProcAddress(hModule, "XInputGetBatteryInformation");
XInputGetKeystroke_FuncAdd = NativeMethods.GetProcAddress(hModule, "XInputGetKeystroke");
XInputGetCapabilities_FuncAdd = NativeMethods.GetProcAddress(hModule, "XInputGetCapabilities");
XInputGetStateEx_FuncAdd = NativeMethods.GetProcAddressFromOrdinalNum(hModule, (IntPtr)100); //非公開関数：XInputGetStateEx
XInputPowerOffController_FuncAdd = NativeMethods.GetProcAddressFromOrdinalNum(hModule, (IntPtr)103); //非公開関数：XInputPowerOffController OrdinalNumber=103
//関数アドレスからDelegateを取得
funcXInputEnable = (XInputEnable)Marshal.GetDelegateForFunctionPointer(XInputEnable_FuncAdd, typeof(XInputEnable));
funcXInputGetState = (XInputGetState)Marshal.GetDelegateForFunctionPointer(XInputGetState_FuncAdd, typeof(XInputGetState));
funcXInputSetState = (XInputSetState)Marshal.GetDelegateForFunctionPointer(XInputSetState_FuncAdd, typeof(XInputSetState));
funcXInputGetBatteryInformation = (XInputGetBatteryInformation)Marshal.GetDelegateForFunctionPointer(XInputGetBatteryInfomation_FuncAdd, typeof(XInputGetBatteryInformation));
funcXInputGetKeystroke = (XInputGetKeystroke)Marshal.GetDelegateForFunctionPointer(XInputGetKeystroke_FuncAdd, typeof(XInputGetKeystroke));
funcXInputGetCapabilities = (XInputGetCapabilities)Marshal.GetDelegateForFunctionPointer(XInputGetCapabilities_FuncAdd, typeof(XInputGetCapabilities));
func_XInputGetStateEx = (XInputGetStateEx)Marshal.GetDelegateForFunctionPointer(XInputGetStateEx_FuncAdd, typeof(XInputGetStateEx));
func_XInputPowerOffController = (XInputPowerOffController)Marshal.GetDelegateForFunctionPointer(XInputPowerOffController_FuncAdd, typeof(XInputPowerOffController));
_DllName = DllName;
_IsEnable = true;
}
internal XInput()
{
// Try to load the newest XInput***.dll installed on the system
// The delegates below will be loaded dynamically from that dll
dll = Kernel32.LoadLibrary("XINPUT1_4");
if (dll == IntPtr.Zero)
{
dll = Kernel32.LoadLibrary("XINPUT1_3");
}
if (dll == IntPtr.Zero)
{
dll = Kernel32.LoadLibrary("XINPUT1_2");
}
if (dll == IntPtr.Zero)
{
dll = Kernel32.LoadLibrary("XINPUT1_1");
}
if (dll == IntPtr.Zero)
{
dll = Kernel32.LoadLibrary("XINPUT9_1_0");
}
if (dll == IntPtr.Zero)
{
Debug.Print("XInput was not found on this platform");
return;
}
// Load the entry points we are interested in from that dll
GetCapabilities = (XInputGetCapabilities)Load("XInputGetCapabilities", typeof(XInputGetCapabilities));
GetState =
// undocumented XInputGetStateEx (Ordinal 100) with support for the "Guide" button (requires XINPUT_1_3+)
(XInputGetState)Load(100, typeof(XInputGetState)) ??
// documented XInputGetState (no support for the "Guide" button)
(XInputGetState)Load("XInputGetState", typeof(XInputGetState));
SetState = (XInputSetState)Load("XInputSetState", typeof(XInputSetState));
}
static XInput()
{
var library = LoadLibrary("XInput1_4.dll");
var version = 140;
if (library == NULL)
{
library = LoadLibrary("XInput1_3.dll");
version = 130;
}
if (library == NULL)
{
library = LoadLibrary("XInput9_1_0.dll");
version = 910;
}
if (library != NULL)
{
var getStatePointer = GetProcAddress(library, "XInputGetStateEx");
if (getStatePointer == NULL && version >= 130 && version <= 140)
{
getStatePointer = GetProcAddress(library, new IntPtr(100)); // <- XInputGetStateEx has ordinal 100 in these versions
}
if (getStatePointer == NULL)
{
getStatePointer = GetProcAddress(library, "XInputGetState");
}
if (getStatePointer != NULL)
{
getState = Marshal.GetDelegateForFunctionPointer<XInputGetState>(getStatePointer);
}
}
}
