- 1 year ago
Kotlin native how to use external dll
In Kotlin Native, you can use external DLLs (Dynamic Link Libraries) by using the konan-lab
Gradle plugin. This plugin allows you to define external dependencies, including DLLs, that your Kotlin Native project needs to interact with. Here's a step-by-step guide on how to use an external DLL in Kotlin Native:
Create a Kotlin Native Project:
- Set up a Kotlin Native project using the Gradle build system. You can use the
kotlin-multiplatform
orkotlin-platform-native
Gradle plugin to create the project.
- Set up a Kotlin Native project using the Gradle build system. You can use the
Add
konan-lab
Plugin:- Add the
konan-lab
Gradle plugin to your Kotlin Native project. This plugin enables you to define and configure external dependencies like DLLs. Add the following to yourbuild.gradle.kts
file:
kotlinplugins {
kotlin("native.cocoapods")
kotlin("konan-lab")
}
- Add the
Define External Dependency:
- In the same
build.gradle.kts
file, define the external dependency for the DLL you want to use. Specify the path to the DLL and the associated headers (if any). For example:
kotlinkonanArtifacts {
executable("main") {
sharedLibrary("myDLL") {
abiFilter = "x86-64"
// Replace 'path/to/your/dll' with the actual path to your DLL
file("path/to/your/dll")
// If your DLL requires header files, specify them here
header("path/to/your/headers/header.h")
}
}
}
- In the same
Link the DLL:
- Ensure that you link the DLL in your Kotlin Native code. You can use the
external
modifier in your Kotlin Native code to indicate that the function is defined in the external DLL. For example:
kotlin// Declare an external function from the DLL
external fun myDLLFunction(param: Int): Int
// Use the external function in your Kotlin Native code
fun main() {
val result = myDLLFunction(42)
println("Result from DLL function: $result")
}
- Ensure that you link the DLL in your Kotlin Native code. You can use the
Build and Run:
- Build and run your Kotlin Native project. The external DLL should be linked and used in your code.
Please note that the steps provided above are just an example. The actual steps and configuration might vary depending on your specific Kotlin Native project setup and the DLL you are trying to use.
Keep in mind that using external DLLs in Kotlin Native requires careful consideration of platform compatibility, dependencies, and versioning. Make sure to test your Kotlin Native application thoroughly to ensure proper integration and functionality with the external DLL.