给出一段在windows下利用hackrf利用指定采样率接收指定频率和带宽的信号并保存到数组的C/C++代码，其中将信号保存到数组的操作写在回调函数中

以下是一个基于 HackRF 的 C++ 示例代码，用于在 Windows 下接收指定频率和带宽的信号并将其保存到名为 `data` 的数组中：

#include <hackrf.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define BUFFER_SIZE 65536  // 缓冲区大小

hackrf_device* device = NULL;
uint8_t buffer[BUFFER_SIZE];  // 缓冲区
int data[BUFFER_SIZE];  // 用于保存接收到的数据

int on_sample_received(hackrf_transfer* transfer) {
    int16_t* samples = (int16_t*)transfer->buffer;
    int sample_count = transfer->valid_length / 2;

    // 将接收到的数据转换为整型，并保存到数组中
    for (int i = 0; i < sample_count; i++) {
        data[i] = (int)samples[i];
    }

    return 0;
}

int main() {
    int result;
    uint32_t frequency = 2400000000;  // 接收频率为 2.4 GHz
    uint32_t samplerate = 2000000;  // 采样率为 2 MHz
    uint32_t bandwidth = 1000000;  // 带宽为 1 MHz

    // 初始化 HackRF 设备
    result = hackrf_init();
    if (result != HACKRF_SUCCESS) {
        printf("Error: Failed to initialize HackRF device! (error code: %d)\n", result);
        return -1;
    }

    // 打开 HackRF 设备
    result = hackrf_open_by_serial(NULL, &device);
    if (result != HACKRF_SUCCESS) {
        printf("Error: Failed to open HackRF device! (error code: %d)\n", result);
        return -1;
    }

    // 配置 HackRF 设备
    result = hackrf_set_freq(device, frequency);
    if (result != HACKRF_SUCCESS) {
        printf("Error: Failed to set frequency! (error code: %d)\n", result);
        return -1;
    }

    result = hackrf_set_sample_rate(device, samplerate);
    if (result != HACKRF_SUCCESS) {
        printf("Error: Failed to set sample rate! (error code: %d)\n", result);
        return -1;
    }

    result = hackrf_set_baseband_filter_bandwidth(device, bandwidth);
    if (result != HACKRF_SUCCESS) {
        printf("Error: Failed to set baseband filter bandwidth! (error code: %d)\n", result);
        return -1;
    }

    // 开始接收数据，并将数据保存到数组中
    result = hackrf_start_rx(device, on_sample_received, NULL);
    if (result != HACKRF_SUCCESS) {
        printf("Error: Failed to start receiving data! (error code: %d)\n", result);
        return -1;
    }

    // 等待接收到足够的数据
    while (true) {
        // ...
    }

    // 停止接收数据
    result = hackrf_stop_rx(device);
    if (result != HACKRF_SUCCESS) {
        printf("Error: Failed to stop receiving data! (error code: %d)\n", result);
        return -1;
    }

    // 关闭 HackRF 设备
    result = hackrf_close(device);
    if (result != HACKRF_SUCCESS) {
        printf("Error: Failed to close HackRF device! (error code: %d)\n", result);
        return -1;
    }

    // 释放 HackRF 资源
    result = hackrf_exit();
    if (result != HACKRF_SUCCESS) {
        printf("Error: Failed to exit HackRF! (error code: %d)\n", result);
        return -1;
    }

    return 0;
}

在上面的代码中，我们定义了一个名为 `on_sample_received` 的回调函数，每当接收到数据时，该函数将把数据转换为整型，并保存到名为 `data` 的数组中。在主循环中，我们使用一个无限循环来等待接收到足够的数据，这里的具体实现可以根据实际需求进行修改。当接收到足够的数据后，我们调用 `hackrf_stop_rx()` 函数停止接收数据，并关闭 HackRF 设备。