golang设置d窗提示

前言

golang 以加载windows系统动态库的方式

代码

package main

import (

	"syscall"

	"time"

	"unsafe"

)

func IntPtr(n int) uintptr {

	return uintptr(n)

}

func StrPtr(s string) uintptr {

	return uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(s)))

}

//windows下的另一种DLL方法调用

func ShowMessage2(tittle, text string) {

	user32dll, _ := syscall.LoadLibrary("user32.dll")

	user32 := syscall.NewLazyDLL("user32.dll")

	MessageBoxW := user32.NewProc("MessageBoxW")

	MessageBoxW.Call(IntPtr(0), StrPtr(text), StrPtr(tittle), IntPtr(0))

	defer syscall.FreeLibrary(user32dll)

}

func main() {

	go func() {

		for {

			ShowMessage2("当前列车遇到障碍物!", "第5列TC1")

			time.Sleep(3 * time.Second)

		}

	}()

	select {}

}