go dll 获取 当前 光标位置 win10

package windll

import (
	"syscall"
	"unsafe"
)


var (
	modUser32, _            = syscall.LoadDLL("user32.dll")
	procGetKeyboardState, _ = modUser32.FindProc("GetKeyboardState")
	procGetAsyncKeyState, _ = modUser32.FindProc("GetAsyncKeyState")
	getCursorPosState, _    = modUser32.FindProc("GetCursorPos")
)

type POINT struct {
	X, Y int32
}

// GetAsyncKeyState 确定在调用该函数时某个键是按下还是按下，以及在上一次调用GetAsyncKeyState之后是否按下了该键
// 参考 https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getasynckeystate
func GetAsyncKeyState(key int) uintptr {
	res, _, _ := procGetAsyncKeyState.Call(uintptr(key))
	return res & 0x8000
}

// GetCoords 获取当前光标位置
func GetCoords(point *POINT) bool {
	getCursorPosState.Call(uintptr(unsafe.Pointer(point)), 0, 0, 0)
	return true
}