protected bool IsDeviceAccessible()
{
Debug.Assert(_handle == IntPtr.Zero);
var isAccessible = OfficialApi.IsDeviceAccessible(_handle, ref _deviceInformation,
AccessMode.独占权限);
this.InfoSuccessWithDescription(isAccessible);
return(isAccessible);
}
private ErrorCode EnumDevices(ref DeviceInformationCollection deviceInfoCollection)
{
var errorCode = OfficialApi.EnumDevices(DeviceType.GigeDevice, ref deviceInfoCollection);
if (errorCode != ErrorCode.MV_OK)
{
this.ErrorFailWithReason(errorCode);
}
else
{
this.InfoSuccess();
}
return(errorCode);
}
protected ErrorCode SetStreamChannelPacketSize(uint value = 8164)
{
Debug.Assert(_handle != IntPtr.Zero);
var errorCode = OfficialApi.SetStreamChannelPacketSize(_handle, value);
if (errorCode != ErrorCode.MV_OK)
{
this.ErrorFailWithReason(errorCode);
}
else
{
this.InfoSuccess();
}
return(errorCode);
}
protected ErrorCode GetStreamChannelPacketSize(ref Int32Value value)
{
Debug.Assert(_handle != IntPtr.Zero);
var errorCode = OfficialApi.GetStreamChannelPacketSize(_handle, ref value);
if (errorCode != ErrorCode.MV_OK)
{
this.ErrorFailWithReason(errorCode);
}
else
{
this.InfoSuccessWithDescription(value);
}
return(errorCode);
}
protected ErrorCode StopGrabbing()
{
Debug.Assert(_handle != IntPtr.Zero);
var errorCode = OfficialApi.StopGrabbing(_handle);
if (errorCode != ErrorCode.MV_OK)
{
this.ErrorFailWithReason(errorCode);
}
else
{
this.InfoSuccess();
}
return(errorCode);
}
protected ErrorCode OpenDevice()
{
Debug.Assert(_handle != IntPtr.Zero);
var errorCode = OfficialApi.OpenDevice(_handle, AccessMode.独占权限);
if (errorCode != ErrorCode.MV_OK)
{
this.ErrorFailWithReason(errorCode);
}
else
{
this.InfoSuccess();
}
return(errorCode);
}
protected ErrorCode CreateHandle()
{
Debug.Assert(_handle == IntPtr.Zero);
var errorCode = OfficialApi.CreateHandle(ref _handle, ref _deviceInformation);
if (errorCode != ErrorCode.MV_OK)
{
this.ErrorFailWithReason(errorCode);
}
else
{
Debug.Assert(_handle != IntPtr.Zero);
this.InfoSuccess();
}
return(errorCode);
}
protected ErrorCode DestroyHandle()
{
Debug.Assert(_handle != IntPtr.Zero);
var errorCode = OfficialApi.DestroyHandle(_handle);
if (errorCode != ErrorCode.MV_OK)
{
this.ErrorFailWithReason(errorCode);
}
else
{
this.InfoSuccess();
}
_handle = IntPtr.Zero;
return(errorCode);
}
protected ErrorCode GetOneFrame(Bitmap bitmap)
{
Debug.Assert(_handle != IntPtr.Zero);
var errorCode = OfficialApi.GetOneFrame(_handle, bitmap.Buffer, bitmap.BufferLength,
ref _frameOutInformation);
switch (errorCode)
{
case ErrorCode.MV_OK:
return(errorCode);
case ErrorCode.MV_E_NODATA:
return(errorCode);
default:
this.ErrorFailWithReason(errorCode);
return(errorCode);
}
}
protected ErrorCode SetCommandValue(CommondType commond)
{
Debug.Assert(_handle != IntPtr.Zero);
return(OfficialApi.SetCommandValue(_handle, commond.ToString()));
}
protected ErrorCode SetEnumValue(CommondType commond, uint value)
{
Debug.Assert(_handle != IntPtr.Zero);
return(OfficialApi.SetEnumValue(_handle, commond.ToString(), value));
}
protected ErrorCode SetInt32Value(string strValue, uint value)
{
Debug.Assert(_handle != IntPtr.Zero);
return(OfficialApi.SetIntValue(_handle, strValue, value));
}
protected ErrorCode GetInt32Value(CommondType commond, ref Int32Value value)
{
Debug.Assert(_handle != IntPtr.Zero);
return(OfficialApi.GetIntValue(_handle, commond.ToString(), ref value));
}
