I want  use MC35 to scan barcode, is there some SDK for help? or other solutions?

You could use CamWede software. It is basically the same as DataWedge/ScanWedge. As far as I remember it comes with the device (in Application)

The MC35 was built by an OEM for us.  Our EMDK's do not provide support for any of the features on the device.  It is as close to a "pure" Microsoft device as Motorola can get. Thus you can only use the Microsoft API's on this device.  Any Motorola specific API's are not supported. Dave Mohnke

But which devices supported by EMDK?

The EMDK for C 2.2 list the following supported terminals for the Display API. The MC35 is not included.
DISPLAY

All  DISPLAY functions are supported on devices that contain backlit LCD screens and backlit keypads.

Exceptions

API

DISPLAY_GetBacklightIntensity

DISPLAY_GetBacklightIntensityLevels

DISPLAY_GetBacklightState

DISPLAY_GetContrast

 

 

 

 

 

 

DISPLAY_GetContrastLevels

 

 

 

 

 

DISPLAY_GetKeyLiteInfo

 

 

 

 

 

 

 

 

 

DISPLAY_GetVersion

DISPLAY_SetBacklightIntensity

DISPLAY_SetBacklightState

DISPLAY_SetContrast

 

 

 

 

 

 

DISPLAY_SetKeyLiteInfo