The PTPPassThroughPB has provision for both sending and receiving data.
Your set up will be similar to the sample code, but change the
commandCode to kSetDeviceProp, numOfImputParams to 1, params[0] to the
property you want to change, the dataSize should be 2, data[0] to low
byte of new value, data[1] to high byte of new value, and dataUsageMode
to kPTPPassThruSend. The msgPB.message.dataSize should be set to 2 +
sizeof(PTPPassThrough) - 1 assuming that you are allocating the right
amount of buffer.
--Dino
On Feb 15, 2005, at 11:06 AM, Stefan Hanshans wrote:
I can read the properties of a Canon PowerShot camera and now would
like to set some of them, but don't know which parameters I have to
set.
Is this possible with the PTPPassThroughPB structure, defined in the
PTP.h file of the PTPPassTroughTester app?
If so, what do I have to do? Which values are needed for the
parameters of the ICAObjectSendMessagePB structure?
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