Table of Contents
问题内容
解决方法
Home Backend Development Golang go LoadDLL whose dependencies are not in System or System32

go LoadDLL whose dependencies are not in System or System32

Feb 08, 2024 pm 10:30 PM
go language

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")
Copy after login

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)

}
Copy after login

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
}
Copy after login

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 of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

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

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

What libraries are used for floating point number operations in Go? What libraries are used for floating point number operations in Go? Apr 02, 2025 pm 02:06 PM

The library used for floating-point number operation in Go language introduces how to ensure the accuracy is...

What is the problem with Queue thread in Go's crawler Colly? What is the problem with Queue thread in Go's crawler Colly? Apr 02, 2025 pm 02:09 PM

Queue threading problem in Go crawler Colly explores the problem of using the Colly crawler library in Go language, developers often encounter problems with threads and request queues. �...

Which libraries in Go are developed by large companies or provided by well-known open source projects? Which libraries in Go are developed by large companies or provided by well-known open source projects? Apr 02, 2025 pm 04:12 PM

Which libraries in Go are developed by large companies or well-known open source projects? When programming in Go, developers often encounter some common needs, ...

What is the difference between `var` and `type` keyword definition structure in Go language? What is the difference between `var` and `type` keyword definition structure in Go language? Apr 02, 2025 pm 12:57 PM

Two ways to define structures in Go language: the difference between var and type keywords. When defining structures, Go language often sees two different ways of writing: First...

How to solve the user_id type conversion problem when using Redis Stream to implement message queues in Go language? How to solve the user_id type conversion problem when using Redis Stream to implement message queues in Go language? Apr 02, 2025 pm 04:54 PM

The problem of using RedisStream to implement message queues in Go language is using Go language and Redis...

In Go, why does printing strings with Println and string() functions have different effects? In Go, why does printing strings with Println and string() functions have different effects? Apr 02, 2025 pm 02:03 PM

The difference between string printing in Go language: The difference in the effect of using Println and string() functions is in Go...

What should I do if the custom structure labels in GoLand are not displayed? What should I do if the custom structure labels in GoLand are not displayed? Apr 02, 2025 pm 05:09 PM

What should I do if the custom structure labels in GoLand are not displayed? When using GoLand for Go language development, many developers will encounter custom structure tags...

Why is it necessary to pass pointers when using Go and viper libraries? Why is it necessary to pass pointers when using Go and viper libraries? Apr 02, 2025 pm 04:00 PM

Go pointer syntax and addressing problems in the use of viper library When programming in Go language, it is crucial to understand the syntax and usage of pointers, especially in...

See all articles