# HelloOrbbec

功能描述：用于演示SDK初始化、獲取SDK版本、獲取設備型號、獲取設備序列號、獲取固件版本號、SDK釋放資源，并通過(guò)ESC_KEY鍵退出程序

> 本示例基于C Low Level API進(jìn)行演示

首先獲取并打印當前SDK版本

printf("SDK version: %d.%d.%d\n", ob_get_major_version(), ob_get_minor_version(), ob_get_patch_version());

創(chuàng )建一個(gè)Context，用于獲取設備信息列表和創(chuàng )建設備

ob_error*   error = NULL;
ob_context* ctx   = ob_create_context( &error );

查詢(xún)已經(jīng)接入設備的列表，從而獲取列表內設備數量，并通過(guò)索引號0創(chuàng )建獲取列表內第一個(gè)設備

ob_device_list* dev_list = ob_query_device_list( ctx, &error );
int dev_count = ob_device_list_device_count(dev_list, &error);
if(dev_count == 0) {
    printf("Device not found!\n");
    return -1;
}
ob_device* dev = ob_device_list_get_device(dev_list, 0, &error);

接下來(lái)就可以獲取和這個(gè)設備相關(guān)的信息了

//獲取設備信息
ob_device_info* dev_info = ob_device_get_device_info(dev, &error);

//獲取設備名稱(chēng)
const char* name = ob_device_info_name(dev_info, &error);

//獲取設備的pid, vid, uid
int pid = ob_device_info_pid(dev_info, &error);
int vid = ob_device_info_vid(dev_info, &error);
int uid = ob_device_info_uid(dev_info, &error);

//通過(guò)獲取設備的固件版本號
const char* fw_ver = ob_device_info_firmware_version(dev_info, &error);

//通過(guò)獲取設備的序列號
const char* sn = ob_device_info_serial_number(dev_info, &error);

//獲取支持的傳感器列表
ob_sensor_list* sensor_list = ob_device_get_sensor_list(dev, &error);

//獲取傳感器數量
int count = ob_sensor_list_get_sensor_count(sensor_list, &error);
for(int i = 0; i < count; i++)
{
    ob_sensor_type sensor_type = ob_sensor_list_get_sensor_type(sensor_list， i, &error);
    switch (sensor_type)
    {
      case OB_SENSOR_COLOR:
          break;
        case OB_SENSOR_DEPTH:
          break;
        case OB_SENSOR_IR:
          break;
    }
}

釋放資源，退出程序。

//銷(xiāo)毀sensor list
ob_delete_sensor_list(sensor_list, &error);
//銷(xiāo)毀device info
ob_delete_device_info(dev_info, &error);
//銷(xiāo)毀device
ob_delete_device(dev, &error);
//銷(xiāo)毀device list
ob_delete_device_list(dev_list, &error);
//銷(xiāo)毀context
ob_delete_context(ctx, &error);

預期輸出：