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导入OLA图像 - ImportOlaImage

函数简介

将指定目录中的单个图像文件导入到OLA数据库中,可选择是否覆盖已存在的图像数据。

接口名称

ImportOlaImage

DLL调用

cpp
int ImportOlaImage(long ola, const long db, string dir, string fileName, int cover);

参数说明

参数名类型说明
ola长整型数OLAPlug对象的指针,由 CreateCOLAPlugInterFace 接口生成
db长整型数数据库连接句柄,由 OpenDatabase 接口生成
dir字符串图像文件所在的目录路径
fileName字符串要导入的图像文件名
cover布尔值是否覆盖已存在的图像数据,1 覆盖,0 跳过

示例

SDK 调用

cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
int ret = ola.ImportOlaImage(0, "value", "C:\\test.txt", 0);
csharp
using OLAPlug;

var ola = new OLAPlugServer();
int ret = ola.ImportOlaImage(0, "value", "C:\\test.txt", 0);
python
from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
ret = ola.ImportOlaImage(0, "value", "C:\\test.txt", 0)
java
import com.olaplug.OLAPlugServer;

OLAPlugServer ola = new OLAPlugServer();
int ret = ola.ImportOlaImage(0, "value", "C:\\test.txt", 0);
cpp
var ola = com("OlaPlug.OlaSoft")
var ret = ola.ImportOlaImage(0, "value", "C:\\test.txt", 0)
vbscript
Set ola = CreateObject("OlaPlug.OlaSoft")
ret = ola.ImportOlaImage(0, "value", "C:\\test.txt", 0)
text
.局部变量 ola, OLAPlug
ola.创建 ()
ret = ola.ImportOlaImage(0, “value”, “C:\\test.txt”, 0)
aardio
import OLAPlugServer;
var ola = OLAPlugServer();
var ret = ola.ImportOlaImage(0, "value", "C:\\test.txt", 0);
text
变量 ola <类型 = OLAPlugServer>
ola = 新建 OLAPlugServer
整数 ret = ola.ImportOlaImage(0, "value", "C:\\test.txt", 0)
cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
int32_t ret = ola.ImportOlaImage(0, "value", "C:\\test.txt", 0);

原生 DLL 调用

cpp
long instance = CreateCOLAPlugInterFace();
ImportOlaImage(instance, 0, "value", "C:\\test.txt", 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 int ImportOlaImage(long ola, long db, string dir, string fileName, int cover);

long instance = CreateCOLAPlugInterFace();
ImportOlaImage(instance, 0, "value", "C:\\test.txt", 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.ImportOlaImage(instance, 0, "value", "C:\\test.txt", 0)

返回值

操作结果。成功返回 1,失败返回 0

注意事项

  • 适用于单个图像文件的导入场景。
  • cover1 时覆盖现有数据,为 0 时跳过已存在的图像。
  • 如果导入失败,可通过 GetDatabaseError 获取详细错误信息。
  • 确保目录路径和文件名正确且图像文件格式受支持。