fix remove CGO bug. fix messageloop thread lock.

Author: whtiehack

wingui.go

@@ -46,39 +46,11 @@ Don't use `go run main.go`, because golang can't load x.syso files.
 */
 package wingui
 
-/*
-#include <windows.h>
-
-HWND dlg;
-
-// Message Loop
-void MessageLoop(){
-    MSG msg;
-    while (GetMessage(&msg, NULL, 0, 0))
-    {
-        if(dlg){
-                if(!IsDialogMessage(dlg, &msg))
-                {
-                    TranslateMessage(&msg);
-                    DispatchMessage(&msg);
-                }
-        }else{
-            TranslateMessage(&msg);
-            DispatchMessage(&msg);
-        }
-    }
-
-}
-
-void SetCurrentDialog(long long int h){
-    dlg = (HWND)h;
-}
-*/
-import "C"
 import (
 	"github.com/lxn/win"
 	"log"
 	"os"
+	"runtime"
 	"syscall"
 )
 
@@ -99,13 +71,27 @@ func InitHInstance(lpModuleName string) {
 	log.Println("hInstance", hInstance)
 }
 
+var dlg win.HWND
+
 // MessageLoop start windows message loop.
 func MessageLoop() {
-	C.MessageLoop()
+	// message loop
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+	var msg win.MSG
+	for win.GetMessage(&msg, 0, 0, 0) > 0 {
+		if dlg > 0 {
+			if win.IsDialogMessage(dlg, &msg) {
+				continue
+			}
+		}
+		win.TranslateMessage(&msg)
+		win.DispatchMessage(&msg)
+	}
 }
 
 // SetCurrentDialog  make sure Message Loop could process dialog msg correct,such as Tabstop msg.
 // This is a optional method.
 func SetCurrentDialog(h win.HWND) {
-	C.SetCurrentDialog(C.longlong(uintptr(h)))
+	dlg = h
 }