如何获取从FreeType绘制删除线的高度

#include <ft2build.h>
#include FT_FREETYPE_H

int main() {
    FT_Library library;
    FT_Face face;

    // 初始化 FreeType 库
    if (FT_Init_FreeType(&library)) {
        fprintf(stderr, "Could not initialize FreeType library\n");
        return 1;
    }

    // 加载字体文件
    if (FT_New_Face(library, "path/to/font.ttf", 0, &face)) {
        fprintf(stderr, "Could not load font\n");
        FT_Done_FreeType(library);
        return 1;
    }

    // 设置字体大小
    FT_Set_Pixel_Sizes(face, 0, 48);

    // 获取字体的度量信息
    FT_GlyphSlot slot = face->glyph;
    int underline_position = slot->underline_position;
    int underline_thickness = slot->underline_thickness;

    printf("Underline Position: %d\n", underline_position);
    printf("Underline Thickness: %d\n", underline_thickness);

    // 清理资源
    FT_Done_Face(face);
    FT_Done_FreeType(library);

    return 0;
}