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2026-06-10

获取指定颜色数量 - GetColorNumPtr ​

函数简介 ​

统计指定图像内符合指定颜色范围的像素点数量。

接口名称 ​

GetColorNumPtr

DLL调用 ​

int GetColorNumPtr(long ola, long imgPtr, string colorList);

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。
imgPtr长整数型OLAImage对象的地址
colorList字符串颜色模型配置字符串，格式说明见 颜色模型说明 - ColorModel。JSON格式示例：[{"StartColor":"3278FA","EndColor":"6496FF","Type":0}]；简化格式示例：3278FA~6496FF

示例 ​

SDK 调用 ​

cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
int ret = ola.GetColorNumPtr(0, "[{");
csharp
using OLAPlug;

var ola = new OLAPlugServer();
int ret = ola.GetColorNumPtr(0, "[{");
python
from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
ret = ola.GetColorNumPtr(0, "[{")
java
import com.olaplug.OLAPlugServer;

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

OLAPlugServer ola;
int32_t ret = ola.GetColorNumPtr(0, "[{");

原生 DLL 调用 ​

cpp
long instance = CreateCOLAPlugInterFace();
GetColorNumPtr(instance, 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 GetColorNumPtr(long ola, long imgPtr, string colorList);

long instance = CreateCOLAPlugInterFace();
GetColorNumPtr(instance, 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.GetColorNumPtr(instance, 0, "[{")

返回值 ​

整数型：返回符合颜色范围的像素点数量。失败返回0。