GetDescriptor Method (descriptorType, index, langId, buffer, bufferLength, transferLength)

LibUsbDotNet

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LibUsbDotNet 2.2.8 GetDescriptor Method (descriptorType, index, langId, buffer, bufferLength, transferLength)

Gets a specific descriptor from the device. See DescriptorType for more information.

Declaration Syntax

Visual Basic

Visual C++

bool GetDescriptor(
	byte descriptorType,
	byte index,
	short langId,
	IntPtr buffer,
	int bufferLength,
	out int transferLength
)

Function GetDescriptor ( _
	descriptorType As Byte, _
	index As Byte, _
	langId As Short, _
	buffer As IntPtr, _
	bufferLength As Integer, _
	<OutAttribute> ByRef transferLength As Integer _
) As Boolean

bool GetDescriptor(
	unsigned char descriptorType, 
	unsigned char index, 
	short langId, 
	IntPtr buffer, 
	int bufferLength, 
	[OutAttribute] int% transferLength
)

Parameters

descriptorType (Byte): The descriptor type ID to retrieve; this is usually one of the DescriptorType enumerations.

index (Byte): Descriptor index.

langId (Int16): Descriptor language id.

buffer (IntPtr): Memory to store the returned descriptor in.

bufferLength (Int32): Length of the buffer parameter in bytes.

transferLength (Int32%): The number of bytes transferred to buffer upon success.

Return Value

True on success.

Assembly: LibUsbDotNet (Module: LibUsbDotNet) Version: 2.2.8.104 (2.2.8.104)

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