Skip to content

生成二维码 - CreateQRCode

函数简介

根据字符串数据生成二维码图片。

接口名称

CreateQRCode

DLL调用

long CreateQRCode(long ola, string str, int pixelsPerModule);

参数说明

参数名类型说明
ola长整数型OLAPlug对象的指针,由 CreateCOLAPlugInterFace 接口生成。
str字符串生成二维码的字符串数据
pixelsPerModule整数型每个数据像素大小

示例

SDK 调用

cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
long handle = ola.CreateQRCode("value", 0);
csharp
using OLAPlug;

var ola = new OLAPlugServer();
long handle = ola.CreateQRCode("value", 0);
python
from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
handle = ola.CreateQRCode("value", 0)
java
import com.olaplug.OLAPlugServer;

OLAPlugServer ola = new OLAPlugServer();
long handle = ola.CreateQRCode("value", 0);
cpp
var ola = com("OlaPlug.OlaSoft")
var handle = ola.CreateQRCode("value", 0)
vbscript
Set ola = CreateObject("OlaPlug.OlaSoft")
handle = ola.CreateQRCode("value", 0)
text
.局部变量 ola, OLAPlug
ola.创建 ()
handle = ola.CreateQRCode("value", 0)
aardio
import OLAPlugServer;
var ola = OLAPlugServer();
var handle = ola.CreateQRCode("value", 0);
text
变量 ola <类型 = OLAPlugServer>
ola = 新建 OLAPlugServer
长整数 handle = ola.CreateQRCode("value", 0)
cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
long handle = ola.CreateQRCode("value", 0);

原生 DLL 调用

cpp
long instance = CreateCOLAPlugInterFace();
CreateQRCode(instance, "value", 0);
csharp
using System.Runtime.InteropServices;
using System.Text;

[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long CreateCOLAPlugInterFace();
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long CreateQRCode(long ola, string str, int pixelsPerModule);

long instance = CreateCOLAPlugInterFace();
CreateQRCode(instance, "value", 0);
python
from ctypes import CDLL, c_int, c_int64, create_string_buffer

ola = CDLL("OLAPlug_x64.dll")
ola.CreateCOLAPlugInterFace.restype = c_int64
instance = ola.CreateCOLAPlugInterFace()
ola.CreateQRCode(instance, "value", 0)

返回值

长整数型:返回OLAImage对象的地址,失败返回0。

注意事项

  • 返回的图片需调用 FreeImagePtr 释放内存。