代码实例：

package main

/*
#include <windows.h>

int taskbarHeight() {
    RECT rt;
    SystemParametersInfo(SPI_GETWORKAREA, 0, (PVOID)&rt, 0);
    return GetSystemMetrics(SM_CYSCREEN) - rt.bottom;
}
*/

import "C"

func main() {
    theight := int(C.taskbarHeight())
    println(theight)
}