|
private HidD_SetFeature ( |
||
| hidDeviceObject | ||
| lpReportBuffer | byte | |
| reportBufferLength | int | |
| 리턴 | bool | |
public bool WriteFeatureData(byte[] data)
{
if (_deviceCapabilities.FeatureReportByteLength <= 0)
{
return(false);
}
var buffer = CreateFeatureOutputBuffer();
Array.Copy(data, 0, buffer, 0, Math.Min(data.Length, _deviceCapabilities.FeatureReportByteLength));
IntPtr hidHandle = IntPtr.Zero;
bool success = false;
try
{
hidHandle = OpenDeviceIO(_devicePath, NativeMethods.ACCESS_NONE);
var overlapped = new NativeOverlapped();
success = NativeMethods.HidD_SetFeature(hidHandle, buffer, buffer.Length);
}
catch (Exception exception)
{
throw new Exception(string.Format("Error accessing HID device '{0}'.", _devicePath), exception);
}
finally
{
if (hidHandle != IntPtr.Zero)
{
CloseDeviceIO(hidHandle);
}
}
return(success);
}
public bool WriteFeatureData(byte[] data)
{
if (_deviceCapabilities.FeatureReportByteLength > 0)
{
byte[] array = CreateFeatureOutputBuffer();
Array.Copy(data, 0, array, 0, Math.Min(data.Length, _deviceCapabilities.FeatureReportByteLength));
IntPtr intPtr = IntPtr.Zero;
bool result = false;
try
{
intPtr = OpenDeviceIO(_devicePath, 0u);
result = NativeMethods.HidD_SetFeature(intPtr, array, array.Length);
}
catch (Exception innerException)
{
throw new Exception($"Error accessing HID device '{_devicePath}'.", innerException);
}
finally
{
if (intPtr != IntPtr.Zero)
{
CloseDeviceIO(intPtr);
}
}
return(result);
}
return(false);
}