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2026-06-10

保存图片 - SaveImageFromPtr ​

函数简介 ​

将内存中的图片保存到指定文件，保存格式由文件扩展名决定。

接口名称 ​

SaveImageFromPtr

DLL调用 ​

int SaveImageFromPtr(long ola, long image_ptr, string file_path);

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。
image_ptr长整数型要保存的图片句柄
file_path字符串保存的目标文件路径，支持 .png、.jpg、.bmp 格式

示例 ​

SDK 调用 ​

cpp
#include "OLAPlugServer.h"

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

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

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

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

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

原生 DLL 调用 ​

cpp
long instance = CreateCOLAPlugInterFace();
SaveImageFromPtr(instance, 0, "C:\\test.txt");
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 SaveImageFromPtr(long ola, long image_ptr, string file_path);

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

返回值 ​

整数型：1 成功，0 失败。

注意事项 ​

  • 保存前请确保目标目录存在且有写入权限。
  • 如果目标文件已存在，将被覆盖。