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QR-Code-generator
mirror of https://github.com/nayuki/QR-Code-generator
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Readme.markdown
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@ -40,132 +40,144 @@ Examples
Java language:
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
import io.nayuki.qrcodegen.*;
// Simple operation
QrCode qr0 = QrCode.encodeText("Hello, world!", QrCode.Ecc.MEDIUM);
BufferedImage img = qr0.toImage(4, 10);
ImageIO.write(img, "png", new File("qr-code.png"));
// Manual operation
List<QrSegment> segs = QrSegment.makeSegments("3141592653589793238462643383");
QrCode qr1 = QrCode.encodeSegments(segs, QrCode.Ecc.HIGH, 5, 5, 2, false);
for (int y = 0; y < qr1.size; y++) {
for (int x = 0; x < qr1.size; x++) {
(... paint qr1.getModule(x, y) ...)
}
```java
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
import io.nayuki.qrcodegen.*;
// Simple operation
QrCode qr0 = QrCode.encodeText("Hello, world!", QrCode.Ecc.MEDIUM);
BufferedImage img = qr0.toImage(4, 10);
ImageIO.write(img, "png", new File("qr-code.png"));
// Manual operation
List<QrSegment> segs = QrSegment.makeSegments("3141592653589793238462643383");
QrCode qr1 = QrCode.encodeSegments(segs, QrCode.Ecc.HIGH, 5, 5, 2, false);
for (int y = 0; y < qr1.size; y++) {
for (int x = 0; x < qr1.size; x++) {
(... paint qr1.getModule(x, y) ...)
}
}
```
JavaScript language:
// Name abbreviated for the sake of these examples here
var QRC = qrcodegen.QrCode;
```javascript
// Name abbreviated for the sake of these examples here
var QRC = qrcodegen.QrCode;
// Simple operation
var qr0 = QRC.encodeText("Hello, world!", QRC.Ecc.MEDIUM);
var svg = qr0.toSvgString(4);
// Simple operation
var qr0 = QRC.encodeText("Hello, world!", QRC.Ecc.MEDIUM);
var svg = qr0.toSvgString(4);
// Manual operation
var segs = qrcodegen.QrSegment.makeSegments("3141592653589793238462643383");
var qr1 = QRC.encodeSegments(segs, QRC.Ecc.HIGH, 5, 5, 2, false);
for (var y = 0; y < qr1.size; y++) {
for (var x = 0; x < qr1.size; x++) {
(... paint qr1.getModule(x, y) ...)
}
// Manual operation
var segs = qrcodegen.QrSegment.makeSegments("3141592653589793238462643383");
var qr1 = QRC.encodeSegments(segs, QRC.Ecc.HIGH, 5, 5, 2, false);
for (var y = 0; y < qr1.size; y++) {
for (var x = 0; x < qr1.size; x++) {
(... paint qr1.getModule(x, y) ...)
}
}
```
Python language:
from qrcodegen import *
```python
from qrcodegen import *
# Simple operation
qr0 = QrCode.encode_text("Hello, world!", QrCode.Ecc.MEDIUM)
svg = qr0.to_svg_str(4)
# Simple operation
qr0 = QrCode.encode_text("Hello, world!", QrCode.Ecc.MEDIUM)
svg = qr0.to_svg_str(4)
# Manual operation
segs = QrSegment.make_segments("3141592653589793238462643383")
qr1 = QrCode.encode_segments(segs, QrCode.Ecc.HIGH, 5, 5, 2, False)
for y in range(qr1.get_size()):
for x in range(qr1.get_size()):
(... paint qr1.get_module(x, y) ...)
# Manual operation
segs = QrSegment.make_segments("3141592653589793238462643383")
qr1 = QrCode.encode_segments(segs, QrCode.Ecc.HIGH, 5, 5, 2, False)
for y in range(qr1.get_size()):
for x in range(qr1.get_size()):
(... paint qr1.get_module(x, y) ...)
```
C++ language:
#include <string>
#include <vector>
#include "QrCode.hpp"
using namespace qrcodegen;
// Simple operation
QrCode qr0 = QrCode::encodeText("Hello, world!", QrCode::Ecc::MEDIUM);
std::string svg = qr0.toSvgString(4);
// Manual operation
std::vector<QrSegment> segs =
QrSegment::makeSegments("3141592653589793238462643383");
QrCode qr1 = QrCode::encodeSegments(
segs, QrCode::Ecc::HIGH, 5, 5, 2, false);
for (int y = 0; y < qr1.size; y++) {
for (int x = 0; x < qr1.size; x++) {
(... paint qr1.getModule(x, y) ...)
}
```cpp
#include <string>
#include <vector>
#include "QrCode.hpp"
using namespace qrcodegen;
// Simple operation
QrCode qr0 = QrCode::encodeText("Hello, world!", QrCode::Ecc::MEDIUM);
std::string svg = qr0.toSvgString(4);
// Manual operation
std::vector<QrSegment> segs =
QrSegment::makeSegments("3141592653589793238462643383");
QrCode qr1 = QrCode::encodeSegments(
segs, QrCode::Ecc::HIGH, 5, 5, 2, false);
for (int y = 0; y < qr1.size; y++) {
for (int x = 0; x < qr1.size; x++) {
(... paint qr1.getModule(x, y) ...)
}
}
```
C language:
#include <stdbool.h>
#include <stdint.h>
#include "qrcodegen.h"
// Text data
uint8_t qr0[qrcodegen_BUFFER_LEN_MAX];
uint8_t tempBuffer[qrcodegen_BUFFER_LEN_MAX];
bool ok = qrcodegen_encodeText("Hello, world!",
tempBuffer, qr0, qrcodegen_Ecc_MEDIUM,
qrcodegen_VERSION_MIN, qrcodegen_VERSION_MAX,
qrcodegen_Mask_AUTO, true);
if (!ok)
return;
int size = qrcodegen_getSize(qr0);
for (int y = 0; y < size; y++) {
for (int x = 0; x < size; x++) {
(... paint qrcodegen_getModule(qr0, x, y) ...)
}
```c
#include <stdbool.h>
#include <stdint.h>
#include "qrcodegen.h"
// Text data
uint8_t qr0[qrcodegen_BUFFER_LEN_MAX];
uint8_t tempBuffer[qrcodegen_BUFFER_LEN_MAX];
bool ok = qrcodegen_encodeText("Hello, world!",
tempBuffer, qr0, qrcodegen_Ecc_MEDIUM,
qrcodegen_VERSION_MIN, qrcodegen_VERSION_MAX,
qrcodegen_Mask_AUTO, true);
if (!ok)
return;
int size = qrcodegen_getSize(qr0);
for (int y = 0; y < size; y++) {
for (int x = 0; x < size; x++) {
(... paint qrcodegen_getModule(qr0, x, y) ...)
}
}
// Binary data
uint8_t dataAndTemp[qrcodegen_BUFFER_LEN_FOR_VERSION(7)]
= {0xE3, 0x81, 0x82};
uint8_t qr1[qrcodegen_BUFFER_LEN_FOR_VERSION(7)];
ok = qrcodegen_encodeBinary(dataAndTemp, 3, qr1,
qrcodegen_Ecc_HIGH, 2, 7, qrcodegen_Mask_4, false);
// Binary data
uint8_t dataAndTemp[qrcodegen_BUFFER_LEN_FOR_VERSION(7)]
= {0xE3, 0x81, 0x82};
uint8_t qr1[qrcodegen_BUFFER_LEN_FOR_VERSION(7)];
ok = qrcodegen_encodeBinary(dataAndTemp, 3, qr1,
qrcodegen_Ecc_HIGH, 2, 7, qrcodegen_Mask_4, false);
```
Rust language:
extern crate qrcodegen;
use qrcodegen::QrCode;
use qrcodegen::QrCodeEcc;
use qrcodegen::QrSegment;
// Simple operation
let qr0 = QrCode::encode_text("Hello, world!",
QrCodeEcc::Medium).unwrap();
let svg = qr0.to_svg_string(4);
// Manual operation
let chrs: Vec<char> = "3141592653589793238462643383".chars().collect();
let segs = QrSegment::make_segments(&chrs);
let qr1 = QrCode::encode_segments_advanced(
&segs, QrCodeEcc::High, 5, 5, Some(2), false).unwrap();
for y in 0 .. qr1.size() {
for x in 0 .. qr1.size() {
(... paint qr1.get_module(x, y) ...)
}
```rust
extern crate qrcodegen;
use qrcodegen::QrCode;
use qrcodegen::QrCodeEcc;
use qrcodegen::QrSegment;
// Simple operation
let qr0 = QrCode::encode_text("Hello, world!",
QrCodeEcc::Medium).unwrap();
let svg = qr0.to_svg_string(4);
// Manual operation
let chrs: Vec<char> = "3141592653589793238462643383".chars().collect();
let segs = QrSegment::make_segments(&chrs);
let qr1 = QrCode::encode_segments_advanced(
&segs, QrCodeEcc::High, 5, 5, Some(2), false).unwrap();
for y in 0 .. qr1.size() {
for x in 0 .. qr1.size() {
(... paint qr1.get_module(x, y) ...)
}
}
```
More information about QR Code technology and this library's design can be found on the project home page.

40
rust/Readme.markdown
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@ -33,25 +33,27 @@ Manual parameters:
Examples
--------
extern crate qrcodegen;
use qrcodegen::QrCode;
use qrcodegen::QrCodeEcc;
use qrcodegen::QrSegment;
// Simple operation
let qr0 = QrCode::encode_text("Hello, world!",
QrCodeEcc::Medium).unwrap();
let svg = qr0.to_svg_string(4);
// Manual operation
let chrs: Vec<char> = "3141592653589793238462643383".chars().collect();
let segs = QrSegment::make_segments(&chrs);
let qr1 = QrCode::encode_segments_advanced(
&segs, QrCodeEcc::High, 5, 5, Some(2), false).unwrap();
for y in 0 .. qr1.size() {
for x in 0 .. qr1.size() {
(... paint qr1.get_module(x, y) ...)
}
```rust
extern crate qrcodegen;
use qrcodegen::QrCode;
use qrcodegen::QrCodeEcc;
use qrcodegen::QrSegment;
// Simple operation
let qr0 = QrCode::encode_text("Hello, world!",
QrCodeEcc::Medium).unwrap();
let svg = qr0.to_svg_string(4);
// Manual operation
let chrs: Vec<char> = "3141592653589793238462643383".chars().collect();
let segs = QrSegment::make_segments(&chrs);
let qr1 = QrCode::encode_segments_advanced(
&segs, QrCodeEcc::High, 5, 5, Some(2), false).unwrap();
for y in 0 .. qr1.size() {
for x in 0 .. qr1.size() {
(... paint qr1.get_module(x, y) ...)
}
}
```
More complete set of examples: https://github.com/nayuki/QR-Code-generator/blob/master/rust/examples/qrcodegen-demo.rs .

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