近期开发cocos2dx 项目，做一个小游戏。（个人喜欢用最新版本号）

  没系统学习就是问题多多，遇到了非常多问题，比方全部的opengl api都必须在主线程中调用，

这让我在多线程载入方面吃了不少亏，浪费了非常多时间。

 这次遇到了输入框中输入中文出现乱码问题。搜索了非常多方法，都没找到。没办法。可是知道cocos2dx 2.x版本号没有这个问题，所以就仅仅有跟进代码了。

首先 找到2.x中找到WM_CHAR的派发消息：

在platform/win32/下的CCEGLView.cpp 中 LRESULT CCEGLView::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)里面能够找到，

不说了，直接贴代码：

case WM_CHAR: 
        { 
            if (wParam < 0x20) 
            { 
                if (VK_BACK == wParam) 
                { 
                    CCIMEDispatcher::sharedDispatcher()->dispatchDeleteBackward(); 
                } 
                else if (VK_RETURN == wParam) 
                { 
                    CCIMEDispatcher::sharedDispatcher()->dispatchInsertText("\n", 1); 
                } 
                else if (VK_TAB == wParam) 
                { 
                    // tab input 
                } 
                else if (VK_ESCAPE == wParam) 
                { 
                    // ESC input 
                    //CCDirector::sharedDirector()->end(); 
                } 
            } 
            else if (wParam < 128) 
            { 
                // ascii char 
                CCIMEDispatcher::sharedDispatcher()->dispatchInsertText((const char *)&wParam, 1); 
            } 
            else 
            { 
                char szUtf8[8] = {0}; 
                int nLen = WideCharToMultiByte(CP_UTF8, 0, (LPCWSTR)&wParam, 1, szUtf8, sizeof(szUtf8), NULL, NULL); 
                CCIMEDispatcher::sharedDispatcher()->dispatchInsertText(szUtf8, nLen); 
            } 
            if ( m_lpfnAccelerometerKeyHook!=NULL ) 
            { 
                (*m_lpfnAccelerometerKeyHook)( message,wParam,lParam ); 
            } 
        } 
        break; 

else if (wParam < 128) 
            { 
                // ascii char 
                CCIMEDispatcher::sharedDispatcher()->dispatchInsertText((const char *)&wParam, 1); 
            } 
            else 
            { 
                char szUtf8[8] = {0}; 
                int nLen = WideCharToMultiByte(CP_UTF8, 0, (LPCWSTR)&wParam, 1, szUtf8, sizeof(szUtf8), NULL, NULL); 
                CCIMEDispatcher::sharedDispatcher()->dispatchInsertText(szUtf8, nLen); 
            } 

好了，进入我们3.2版本号里面：

首先看主注冊消息事件開始处：

在GLView::initWithRect中：

    glfwSetMouseButtonCallback(_mainWindow, GLFWEventHandler::onGLFWMouseCallBack);
    glfwSetCursorPosCallback(_mainWindow, GLFWEventHandler::onGLFWMouseMoveCallBack);
    glfwSetScrollCallback(_mainWindow, GLFWEventHandler::onGLFWMouseScrollCallback);
    glfwSetCharCallback(_mainWindow, GLFWEventHandler::onGLFWCharCallback);
    glfwSetKeyCallback(_mainWindow, GLFWEventHandler::onGLFWKeyCallback);
    glfwSetWindowPosCallback(_mainWindow, GLFWEventHandler::onGLFWWindowPosCallback);
    glfwSetFramebufferSizeCallback(_mainWindow, GLFWEventHandler::onGLFWframebuffersize);
    glfwSetWindowSizeCallback(_mainWindow, GLFWEventHandler::onGLFWWindowSizeFunCallback);

上面红色就是我们想要的：

进入GLFWEventHandler::onGLFWCharCallback，在跟进： _view->onGLFWCharCallback(window, character);

ok：我们进入最关键地点：直接贴代码：

void GLView::onGLFWCharCallback(GLFWwindow *window, unsigned int character)
{
	IMEDispatcher::sharedDispatcher()->dispatchInsertText((const char*)&character, 1);
}

void GLView::onGLFWCharCallback(GLFWwindow *window, unsigned int character)
{
	if (character < 128)
		IMEDispatcher::sharedDispatcher()->dispatchInsertText((const char*)&character, 1);
	else
	{
		char szUtf8[8] = { 0 };
		int nLen = WideCharToMultiByte(CP_UTF8, 0, (LPCWSTR)&character, 1, szUtf8, sizeof(szUtf8), NULL, NULL);
		IMEDispatcher::sharedDispatcher()->dispatchInsertText(szUtf8, nLen);
	}
}