Init: Create & Init Project...

hot_key/main.go

@@ -0,0 +1,63 @@
+package hot_key
+
+import (
+	"fmt"
+	winapi "github.com/lxn/win"
+	"syscall"
+)
+
+const (
+	ModAlt = 1 << iota
+	ModCtrl
+	ModShift
+	ModWin
+)
+
+var (
+	user32           = syscall.NewLazyDLL("user32")
+	registerHotKey   = user32.NewProc("RegisterHotKey")
+	unregisterHotKey = user32.NewProc("UnregisterHotKey")
+)
+
+var keyHandle = map[int32]func(){0: func() {}}
+
+func RegisterHotKey(Modifiers, KeyCode int, callback func()) (int, error) {
+	uid := len(keyHandle)
+	r1, _, err := registerHotKey.Call(0, uintptr(uid), uintptr(Modifiers), uintptr(KeyCode))
+	if r1 == 1 {
+		keyHandle[int32(uid)] = callback
+		return uid, nil
+	} else {
+		return 0, err
+	}
+}
+
+func UnregisterHotKey(uid int32) error {
+	r1, _, err := unregisterHotKey.Call(0, uintptr(uid))
+	if r1 == 1 {
+		return nil
+	} else {
+		return err
+	}
+}
+
+func UnregisterAllHotKey() {
+	for id, _ := range keyHandle {
+		_ = UnregisterHotKey(id)
+	}
+}
+
+func ListenHotKey() {
+	go func() {
+		msg := &winapi.MSG{}
+		fmt.Println("Start HotKey Listen...")
+		for {
+			winapi.GetMessage(msg, 0, 0, 0)
+			if msg.Message == winapi.WM_HOTKEY {
+				if fnc, ok := keyHandle[int32(msg.WParam)]; ok {
+					fnc()
+				}
+			}
+		}
+	}()
+}