# Object wx.getLaunchOptionsSync()
Obtains the parameters upon Mini Game startup.
# Return Values
# Object
Startup parameters
| Property | Type | Description |
|---|---|---|
| scene | number | The scene value for Mini Game startup |
| query | Object | The query parameter for Mini Game startup |
| shareTicket | string | The shareTicket. See Obtaining More Forwarded Information for details. |
| referrerInfo | object | The source information. This is returned when a user enters the Mini Program from another Mini Program, Official Account, or app. Otherwise, {} is returned. (see the Note below for details.) |
referrerInfo is composed as follows
| Property | Type | Description |
|---|---|---|
| appId | string | The appId of the source Mini Program, Official Account, or app. |
| extraData | object | The data transfered from the source Mini Program, supported when scene=1037 or 1038. |
# Scenes that Return Valid referrerInfo
| Scene Value | Scene | Meaning of appId |
|---|---|---|
| 1020 | Related Mini Program list in the profile page of an Official Account | Source Official Account |
| 1035 | Custom menu of an Official Account | Source Official Account |
| 1036 | Message card shared from an app | Source app |
| 1037 | Mini Program opened from a Mini Program | Source Mini Program |
| 1038 | Returned from another Mini Program | Source Mini Program |
| 1043 | Template message of an Official Account | Source Official Account |
# Notes
In some versions, when there is no referrerInfo, the value undefined is returned. You can use options.referrerInfo && options.referrerInfo.appId to make a judgment.