运行可用：使用FreeType输出中文汉字点阵图形的源码

#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
#include <ft2build.h>
#include <freetype/freetype.h>
#include FT_FREETYPE_H
#define FONT_FILE "/home/quantum6/code/test-fonts/simsun.ttc"
int main()
{
    FT_Library  m_pFTLib;
    FT_Face     m_pFTFace;
    int i=0;
    int j=0;
    wchar_t chinese_char = L'泰';
    FT_Error result = FT_Init_FreeType(&m_pFTLib);
    if(FT_New_Face(m_pFTLib, FONT_FILE, 0, &m_pFTFace))
     {
        printf("FT_New_Face error!\n");
        return;
     }
    //FT_ENCODING_GB2312, FT_ENCODING_UNICODE
    FT_Select_Charmap(m_pFTFace, FT_ENCODING_UNICODE);
    FT_Set_Char_Size(m_pFTFace, 0, 12<<6, 200, 200);
    result = FT_Load_Glyph(m_pFTFace, FT_Get_Char_Index(m_pFTFace, chinese_char), FT_LOAD_DEFAULT);
     // 第二个参数为渲染模式
    result = FT_Render_Glyph(m_pFTFace->glyph,  FT_RENDER_MODE_NORMAL);  
    printf("result=%d\n", result);
    FT_Bitmap bmp = m_pFTFace->glyph->bitmap;
    int h = bmp.rows;
    int w = bmp.width;
    for (i=0; i<h; i++)
    {
        for (j=0; j<w; j++)
        {
            printf(((bmp.buffer[i * w  + j]) == 0 ) ? " " : "1");
        }
        printf("\n");
    }
}

rm test
gcc ft.c \
    -o test \
    -I/usr/include/freetype2 \
    -L/usr/lib64 -lfreetype
./test