英文:
Windows callback function in Golang
问题
我想在Golang中向Windows事件日志进行推送订阅。我应该如何传递回调函数？
EVT_SUBSCRIBE_CALLBACK是函数的指针，类似于：
typedef DWORD ( WINAPI *EVT_SUBSCRIBE_CALLBACK)(
EVT_SUBSCRIBE_NOTIFY_ACTION Action,
PVOID UserContext,
EVT_HANDLE Event
);
所以，我的变量看起来像这样：
func logCallback() syscall.Handle {
cb := func(_ uintptr, _ uintptr, _ uintptr) uint64 {
fmt.Printf("callback called %v", data)
return 0
}
ptr := syscall.NewCallback(cb)
return syscall.Handle(ptr) // 类型为 syscall.Handle uintptr
}
我成功获取了订阅处理程序，没有错误，但它仍然不起作用。有任何想法为什么吗？我应该首先查看哪里？
英文:
I wanna make push subscription to Windows Event Log in Golang
How exactly should I pass a callback function?
EVT_SUBSCRIBE_CALLBACK is the pointer of function, like
typedef DWORD ( WINAPI *EVT_SUBSCRIBE_CALLBACK)(
EVT_SUBSCRIBE_NOTIFY_ACTION Action,
PVOID UserContext,
EVT_HANDLE Event
);
So, my variant looks like this:
func logCallback() syscall.Handle {
cb := func(_ uintptr, _ uintptr, _ uintptr) uint64 {
fmt.Printf("callback called %v", data)
return 0
}
ptr := syscall.NewCallback(cb)
return syscall.Handle(ptr) // type syscall.Handle uintptr
}
I get successfully subscribed handler with no errors, but it still doesn't work.
Any ideas why? Where should I look first?
答案1
得分: 3
当使用系统调用时，请确保在文件的顶部包含import "C"。很高兴能帮到你。
英文:
When using syscall make sure the to include import "C" at the top of your file. Glad it helped you.
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