| Field | Type | Offset | Description | Notes |
| msgCategory | s16 | 0x0 | The message category this message box uses. | This field uses the following enum: MSGBOX_MSG_CATE |
| requestPause | u8 | 0x2 | If ON, this message box will request a pause. | This field is a boolean. |
| pad0 | dummy8 | 0x3 | | This field is padding. |
| singleActivityCtrl | s8 | 0x8 | The control type to use for this message box. | This field uses the following enum: MSGBOX_AUTONAVI_CTRL_TYPE |
| pad1 | dummy8 | 0x9 | | This field is padding. |
| multiActivityCtrl | s8 | 0x10 | The control type to use for this message box. | This field uses the following enum: MSGBOX_AUTONAVI_CTRL_TYPE |
| pad2 | dummy8 | 0x11 | | This field is padding. |