使用libharu库可以获取文字坐标的代码例子

您可以参考以下libharu库的例子：

#include <hpdf.h>int main (void)
{
    HPDF_Doc  pdf;
    HPDF_Font font;
    HPDF_Page page;
    HPDF_REAL tw;
    HPDF_REAL x;
    HPDF_REAL y;
    HPDF_Point points[4];    pdf = HPDF_New (NULL, NULL);
    if (!pdf) {
        printf ("error: cannot create PdfDoc object\n");
        return 1;
    }    /* 添加一页 */
    page = HPDF_AddPage (pdf);    font = HPDF_GetFont (pdf, "Helvetica", NULL);    /* 设置文本位置 */
    HPDF_Page_SetFontAndSize (page, font, 20);
    tw = HPDF_Page_TextWidth (page, "ABCabc123");
    x = (HPDF_Page_GetWidth (page) - tw) / 2;
    y = HPDF_Page_GetHeight (page) / 2;
    HPDF_Page_BeginText (page);
    HPDF_Page_TextOut (page, x, y, "ABCabc123");
    HPDF_Page_EndText (page);    /* 获取文本坐标 */
    points[0].x = x;
    points[0].y = y;
    points[1].x = x + tw;
    points[1].y = y;
    HPDF_Page_GetTextPos (page, points + 2, points + 3);    // 其它代码    HPDF_Free (pdf);    return 0;
}