WPD_COMMAND_MTP_EXT_WRITE_DATA Command

The WPD_COMMAND_MTP_EXT_WRITE_DATA command sends data to the device after the WPD_COMMAND_MTP_EXT_EXECUTE_COMMAND_WITH_DATA_TO_WRITE command is run.

Command category

WPD_CATEGORY_MTP_EXT_VENDOR_OPERATIONS

Parameters

The driver expects the following parameters.

Parameter VarType Description
WPD_PROPERTY_MTP_EXT_TRANSFER_CONTEXT VT_LPWSTR Required. Identifies the context that was returned by the previous call to the device.
WPD_PROPERTY_MTP_EXT_TRANSFER_NUM_BYTES_TO_WRITE VT_UI4 Required. Specifies the number of bytes to write.
WPD_PROPERTY_MTP_EXT_TRANSFER_DATA VT_VECTOR|VT_UI1 Required. Identifies the buffer into which the device data is copied.

Return Value

The driver returns the following results.

Result VarType Description
WPD_PROPERTY_MTP_EXT_TRANSFER_NUM_BYTES_WRITTEN VT_UI4 Required. Specifies the number of bytes sent to the device..

Calling Methods

Can only be called directly by using IPortableDevice::SendCommand.

Requirements

Header
WpdMtpExtensions.h

See also

Supporting MTP Extensions