ValidateHObject Method - neoVI API

This method is used to determine if a driver object is valid.

C/C++ Declare

int _stdcall icsneoValidateHObject(void * hObject);

Visual Basic .NET Declare

Public Declare Function icsneoValidateHObject Lib “icsneo40.dll” (ByVal hObject As IntPtr) As Integer

C# Declare

[DllImport(“icsneo40.dll”)] public static extern int icsneoValidateHObject(IntPtr hObject);

Parameters

hObject

[in] Specifies the driver object created by OpenNeoDevice.

Return Values

1 if the hObject is valid. 0 if the object is invalid.

Remarks

A driver object will be invalid if it was never initialized by OpenNeoDevice. Calling ClosePort will not invalidate a driver object; only FreeObject will do so.

Examples

C/C++ Example:

if(Convert::ToBoolean(icsneoValidateHObject(m_hObject)))
{
    cmdCheckHardwareHandle->Text = "Good";
}
else
{
    cmdCheckHardwareHandle->Text = "Lost";
}

C# Example:

if (Convert.ToBoolean (icsNeoDll.icsneoValidateHObject(m_hObject)))
{
    cmdCheckHardwareHandle.Text = "Good";
}
else
{
    cmdCheckHardwareHandle.Text = "Lost";
}

Visual Basic .NET Example:

If (CBool(icsneoValidateHObject(m_hObject))) Then
    cmdCheckHardwareHandle.Text = "Good"
Else
    cmdCheckHardwareHandle.Text = "Lost"
End If