1 /****************************************************************************
 2  * File       : zint_code.c
 3  *
 4  * Copyright (c) 2011 by Li.Recan < 721317716@qq.com >
 5  *
 6  * DESCRIPTION: Demo for creating qrcode by C code.
 7  *
 8  * Modification history
 9  * --------------------------------------------------------------------------
10  * Date         Version  Author       History
11  * --------------------------------------------------------------------------
12  * 2016-10-15   1.0.0    Li.Recan     written
13  ***************************************************************************/
14
15 // Standard Library
16 #include <string.h>
17 #include <stdio.h>
18
19 // so Library
20 #include "zint.h"
21
22 // Project Header
23 #include "zint_code.h"
24
25
26 /****************************************************************************
27 Descpribe: Create Qrcode API with C Code by calling zint lib.
28 Input    : pQrCodeData, the qrcode data buf
29            QrcodeLen, the len of qrcode data, but it can be 0
30            pQrCodeFile, the output file name of qrcode, it can be NULL
31 Output   : pZintRet, to store the ret code from linzint.
32 Return   : 0 is ok, and other values are fail. See the meanings in enum ZINT_RET_CODE
33 Notes    : pQrCodeFile, Must end in .png, .eps or .svg. when isn,t NULL string.
34 ****************************************************************************/
35 ZINT_RET_CODE Zint_Create_QrCode(uint8_t *pQrCodeData, int QrcodeLen, char *pQrCodeFile, int *pZintRet)
36 {
37     struct zint_symbol *pMySymbol     = NULL;
38     int RetCode                     = 0;
39
40     if(!pQrCodeData) //check input pointer
41     {
42         return ZINT_ERR_INV_DATA;
43     }
44
45     if(QrcodeLen == 0)
46     {
47         QrcodeLen = strlen((char *)pQrCodeData);
48     }
49     if(QrcodeLen > QRCODE_MAX_LEN)//len is too long
50     {
51         return ZINT_ERR_TOO_LONG;
52     }
53
54     if(0 == ZBarcode_ValidID(BARCODE_QRCODE))
55     {
56         return ZINT_ERR_INV_CODE_ID;
57     }
58
59     pMySymbol = ZBarcode_Create();
60     if(pMySymbol == NULL)
61     {
62         return ZINT_ERR_MEMORY;
63     }
64
65     if(pQrCodeFile)//when it's NULL, outfile will be "out.png"
66     {
67         if(strstr(pQrCodeFile, "png") || (strstr(pQrCodeFile, "eps")) || (strstr(pQrCodeFile, "svg")))
68         {
69             strcpy(pMySymbol->outfile, pQrCodeFile);
70         }
71         else
72         {
73             ZBarcode_Clear(pMySymbol);
74             ZBarcode_Delete(pMySymbol); //release memory in zint lib
75             return ZINT_ERR_FILE_NAME;
76         }
77     }
78     pMySymbol->symbology     = BARCODE_QRCODE;
79     pMySymbol->option_1     = 3; //ECC Level.It can be large when ECC Level is larger.(value:1-4)
80     pMySymbol->scale         = 4; //contorl qrcode file size, default is 1, used to be 4
81     pMySymbol->border_width = 2; //set white space width around your qrcode and 0 is for nothing
82
83     RetCode = ZBarcode_Encode_and_Print(pMySymbol, pQrCodeData, QrcodeLen, 0);
84     ZBarcode_Clear(pMySymbol);
85     ZBarcode_Delete(pMySymbol); //release memory in zint lib
86
87     if(pZintRet)
88     {
89         *pZintRet = RetCode; //save ret code from zint lib
90     }
91
92     return ((0 == RetCode) ? (ZINT_OK) : (ZINT_ERR_LIB_RET));
93 }

 1 /****************************************************************************
 2  * File       : zint_code.h
 3  *
 4  * Copyright (c) 2011 by Li.Recan < 721317716@qq.com >
 5  *
 6  * DESCRIPTION: API for creating qrcode by C code.
 7  *
 8  * Modification history
 9  * --------------------------------------------------------------------------
10  * Date         Version  Author       History
11  * --------------------------------------------------------------------------
12  * 2016-10-15   1.0.0    Li.Recan     written
13  ***************************************************************************/
14
15 #ifndef __ZINT_CODE__
16 #define __ZINT_CODE__
17
18 #ifdef __cplusplus
19 extern "C"
20 {
21 #endif
22
23 #include <stdint.h>
24
25 #define QRCODE_MAX_LEN        500 //max string len for creating qrcode
26
27 typedef enum
28 {
29     ZINT_OK                 = 0,
30     ZINT_ERR_INV_DATA         = -1, //input invalid data
31     ZINT_ERR_TOO_LONG         = -2, //len for input data is too long
32     ZINT_ERR_INV_CODE_ID     = -3,//the code type is not supported by zint
33     ZINT_ERR_MEMORY         = -4, //malloc memory error in zint lib
34     ZINT_ERR_FILE_NAME        = -5, //qrcode file isn'y end in .png, .eps or .svg.
35     ZINT_ERR_LIB_RET         = -6, //zint lib ret error, real ret code should be zint api ret code
36 }ZINT_RET_CODE;
37
38 /****************************************************************************
39 Descpribe: Create Qrcode API with C Code by calling zint lib.
40 Input    : pQrCodeData, the qrcode data buf
41            QrcodeLen, the len of qrcode data, but it can be 0
42            pQrCodeFile, the output file name of qrcode, it can be NULL
43 Output   : pZintRet, to store the ret code from linzint.
44 Return   : 0 is ok, and other values are fail. See the meanings in enum ZINT_RET_CODE
45 Notes    : pQrCodeFile, Must end in .png, .eps or .svg. when isn,t NULL string.
46 ****************************************************************************/
47 ZINT_RET_CODE Zint_Create_QrCode(uint8_t *pQrCodeData, int QrcodeLen, char *pQrCodeFile, int *pZintRet);
48
49 #define Debuging(fmt, arg...)       printf("[%20s, %4d] "fmt, __FILE__, __LINE__, ##arg)
50
51 #ifdef __cplusplus
52 }
53 #endif
54
55 #endif /* __ZINT_CODE__ */

 1 /****************************************************************************
 2  * File       : qrcode_test.c
 3  *
 4  * Copyright (c) 2011 by Li.Recan < 721317716@qq.com >
 5  *
 6  * DESCRIPTION: Demo for creating qrcode by C code.
 7  *
 8  * Modification history
 9  * --------------------------------------------------------------------------
10  * Date         Version  Author       History
11  * --------------------------------------------------------------------------
12  * 2016-10-15   1.0.0    Li.Recan     written
13  ***************************************************************************/
14
15 // Standard Library
16 #include <stdio.h>
17
18 // Project Header
19 #include "zint_code.h"
20
21 int main(int argc, char *argv[])
22 {
23     int ZintLibRet             = 0; //ret code from zint lib
24     ZINT_RET_CODE ZintRet     = 0; //ret code from zint_code api
25     char QrcodeData[]         = "I love zint lib. 测试一下gbk编码 ...";
26     char QrcodeDataDef[]     = "This's default qrcode file name : out.png ";
27     char QrcodeFile[]         = "MyQrcode.png"; // Must end in .png, .eps or .svg. //zint lib ask !
28
29     //test with inputing qrcode_file name
30     ZintRet = Zint_Create_QrCode((uint8_t*)QrcodeData, 0, QrcodeFile, &ZintLibRet);
31     if(ZINT_OK != ZintRet)
32     {
33         Debuging("Create qrcode err, ZintRet = %d, ZintLibRet = %d\n", ZintRet, ZintLibRet);
34     }
35     else
36     {
37         Debuging("Create qrcode OK ! View qrcode file : %s in cur path. ZintRet = %d, ZintLibRet = %d\n", QrcodeFile, ZintRet, ZintLibRet);
38     }
39
40     //test without inputing qrcode_file name
41     ZintRet = Zint_Create_QrCode((uint8_t*)QrcodeDataDef, 0, NULL, &ZintLibRet);
42     if(ZINT_OK != ZintRet)
43     {
44         Debuging("Create qrcode err, ZintRet = %d, ZintLibRet = %d\n", ZintRet, ZintLibRet);
45     }
46     else
47     {
48         Debuging("Create qrcode OK ! View qrcode file : out.png in cur path. ZintRet = %d, ZintLibRet = %d\n", ZintRet, ZintLibRet);
49     }
50
51     return 0;
52 }