search
HomeBackend DevelopmentGolanggo LoadDLL whose dependencies are not in System or System32

go LoadDLL 其依赖项不在 System 或 System32 中

php小编百草在这里为大家介绍一种常见的错误提示:“go LoadDLL 其依赖项不在 System 或 System32 中”。当我们在使用go语言编写程序时,有时会遇到这个错误提示,表示我们的程序在加载动态链接库时找不到依赖项所在的路径。这个问题可能会导致程序无法正常运行,因此我们需要解决这个问题才能继续进行开发工作。在本文中,我们将详细介绍如何解决这个错误,并提供一些常见的解决方法和技巧。

问题内容

我正在尝试从 windows 上的 go 加载库,如下所示:

citect, err := syscall.loaddll("c:\\program files (x86)\\aveva plant scada\\bin\\bin (x64)ctapi.dll")

问题是该库在该目录中也有依赖项。结果是错误“找不到指定的模块”。我很确定它失败是因为其他 dll 中未满足的依赖关系。

系统调用是否有某种方法可以强制 dll 搜索路径?

更新

我认为我遇到的问题是因为我指定了 load_library_search_user_dirs 但我尝试加载的库也需要标准搜索路径。我添加了 load_library_search_default_dirs,现在它给了我一个有意义的句柄。

func main() {
    fmt.Println("hello")
    dllPath := "C:\\Program Files (x86)\\AVEVA Plant SCADA\\Bin\\Bin (x64)"

    kernel, _ := windows.LoadDLL("kernel32.dll")
    defer kernel.Release()

    sdd, err := kernel.FindProc("SetDefaultDllDirectories")
    if err != nil {
        panic(err)
    }
    r1, _, err := sdd.Call(windows.LOAD_LIBRARY_SEARCH_SYSTEM32)
    if r1 == 0 {
        panic(err)
    }

    addd, err := kernel.FindProc("AddDllDirectory")
    if err != nil {
        panic(err)
    }
    chars := StringToWideCharPtr(dllPath)

    r1, _, err = addd.Call(uintptr(unsafe.Pointer(chars)))
    fmt.Printf("result of add dll directory: %d\n", r1)
    if r1 == 0 {
        panic(err)
    }

    h, err := windows.LoadLibraryEx("CtApi.dll", 0, 0)

    if err != nil {
        panic(err)
    }

    fmt.Printf("library: %v\n", h)

}

解决方法

尝试在golang.org/x/sys/windows包中使用loadlibraryex,它支持load_library_search_*标志(参见使用 load_library_search 标志的搜索顺序)。

package main

import (
    "golang.org/x/sys/windows"
)

func main() {
    name := "C:\\Program Files (x86)\\AVEVA Plant SCADA\\Bin\\Bin (x64)CtApi.dll"
    h, err := windows.LoadLibraryEx(name, 0, windows.LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR)
    if err != nil {
        panic(err)
    }

    dll := &windows.DLL{
        Name:   name,
        Handle: h,
    }

    // use the dll
}

请注意,load_library_search_* 标志并非在所有 windows 版本上都可用。请参阅此处的代码注释

The above is the detailed content of go LoadDLL whose dependencies are not in System or System32. For more information, please follow other related articles on the PHP Chinese website!

Statement
This article is reproduced at:stackoverflow. If there is any infringement, please contact admin@php.cn delete
Golang vs. Python: The Pros and ConsGolang vs. Python: The Pros and ConsApr 21, 2025 am 12:17 AM

Golangisidealforbuildingscalablesystemsduetoitsefficiencyandconcurrency,whilePythonexcelsinquickscriptinganddataanalysisduetoitssimplicityandvastecosystem.Golang'sdesignencouragesclean,readablecodeanditsgoroutinesenableefficientconcurrentoperations,t

Golang and C  : Concurrency vs. Raw SpeedGolang and C : Concurrency vs. Raw SpeedApr 21, 2025 am 12:16 AM

Golang is better than C in concurrency, while C is better than Golang in raw speed. 1) Golang achieves efficient concurrency through goroutine and channel, which is suitable for handling a large number of concurrent tasks. 2)C Through compiler optimization and standard library, it provides high performance close to hardware, suitable for applications that require extreme optimization.

Why Use Golang? Benefits and Advantages ExplainedWhy Use Golang? Benefits and Advantages ExplainedApr 21, 2025 am 12:15 AM

Reasons for choosing Golang include: 1) high concurrency performance, 2) static type system, 3) garbage collection mechanism, 4) rich standard libraries and ecosystems, which make it an ideal choice for developing efficient and reliable software.

Golang vs. C  : Performance and Speed ComparisonGolang vs. C : Performance and Speed ComparisonApr 21, 2025 am 12:13 AM

Golang is suitable for rapid development and concurrent scenarios, and C is suitable for scenarios where extreme performance and low-level control are required. 1) Golang improves performance through garbage collection and concurrency mechanisms, and is suitable for high-concurrency Web service development. 2) C achieves the ultimate performance through manual memory management and compiler optimization, and is suitable for embedded system development.

Is Golang Faster Than C  ? Exploring the LimitsIs Golang Faster Than C ? Exploring the LimitsApr 20, 2025 am 12:19 AM

Golang performs better in compilation time and concurrent processing, while C has more advantages in running speed and memory management. 1.Golang has fast compilation speed and is suitable for rapid development. 2.C runs fast and is suitable for performance-critical applications. 3. Golang is simple and efficient in concurrent processing, suitable for concurrent programming. 4.C Manual memory management provides higher performance, but increases development complexity.

Golang: From Web Services to System ProgrammingGolang: From Web Services to System ProgrammingApr 20, 2025 am 12:18 AM

Golang's application in web services and system programming is mainly reflected in its simplicity, efficiency and concurrency. 1) In web services, Golang supports the creation of high-performance web applications and APIs through powerful HTTP libraries and concurrent processing capabilities. 2) In system programming, Golang uses features close to hardware and compatibility with C language to be suitable for operating system development and embedded systems.

Golang vs. C  : Benchmarks and Real-World PerformanceGolang vs. C : Benchmarks and Real-World PerformanceApr 20, 2025 am 12:18 AM

Golang and C have their own advantages and disadvantages in performance comparison: 1. Golang is suitable for high concurrency and rapid development, but garbage collection may affect performance; 2.C provides higher performance and hardware control, but has high development complexity. When making a choice, you need to consider project requirements and team skills in a comprehensive way.

Golang vs. Python: A Comparative AnalysisGolang vs. Python: A Comparative AnalysisApr 20, 2025 am 12:17 AM

Golang is suitable for high-performance and concurrent programming scenarios, while Python is suitable for rapid development and data processing. 1.Golang emphasizes simplicity and efficiency, and is suitable for back-end services and microservices. 2. Python is known for its concise syntax and rich libraries, suitable for data science and machine learning.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

DVWA

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment