求代码参考，要用到结构体和指针怎么写

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

typedef struct BMPINF
{
    long Width;
    long Height;
};

int main()
{
    BMPINF stBMP;
    FILE *fp = fopen("test.bmp", "r");
    if (fp == NULL)
    {
        return 0;
    }
    fseek(fp, 18, 0);   
    fread(&stBMP, sizeof(BMPINF), 1, fp);   
    printf("宽: %d\n高: %d\n", stBMP.Width, stBMP.Height);
    fclose(fp);
}