ocx手动添加自定义消息

接上篇介绍的ocx手动添加事件,下面介绍添加自定义消息的方式

添加自定义消息：

.h:
1,增加自定义消息ID
#define WM_ON_YBINIT WM_USER+23
    
2,在消息映射节点内增加自定义消息的处理函数声明
// Message maps
    //{{AFX_MSG(CocxCtrl)
        // NOTE - ClassWizard will add and remove member functions here.
        //    DO NOT EDIT what you see in these blocks of generated code !
        afx_msg void OnSyybInit(WPARAM wParam, LPARAM lParam);
    //}}AFX_MSG
    DECLARE_MESSAGE_MAP()
        
        .cpp:

1, 在消息映射节点增加消息映射的宏
BEGIN_MESSAGE_MAP(CocxCtrl, COleControl)
    //{{AFX_MSG_MAP(CocxCtrl)
    // NOTE - ClassWizard will add and remove message map entries
    //    DO NOT EDIT what you see in these blocks of generated code !
    ON_MESSAGE(WM_ON_YBINIT, OnSyybInit) 
    //}}AFX_MSG_MAP
   
2, 对消息处理函数进行实现
void CocxCtrl::OnSyybInit(WPARAM wParam, LPARAM lParam)
{
    string* pStr = (string*)lParam;
    if (pStr != NULL)
    {
        this->FireOnYbInit((*pStr).c_str());
        delete pStr;
    }
}    
​
unsigned int WINAPI CocxCtrl::YbInitThread(LPVOID lpParam)
{
    CocxCtrl* pOnwer = (CocxCtrl*)lpParam;
​
    char szErrMsg[1536], szRet[50];
    memset(szErrMsg,0,sizeof(szErrMsg));
    memset(szRet,0,sizeof(szRet));
    sprintf(szRet,"%d", YB::instance()->Init(szErrMsg));
​
    map<string, string> result;
    result.insert(map<string, string>::value_type("FunRet", szRet));
    result.insert(map<string, string>::value_type("FunMsg", szErrMsg));
    string* pStr = new string(PackJsonStr(result));
    pOnwer->PostMessage(WM_ON_YBINIT, 0, (LPARAM)pStr);
​
    {
        Lock g(pOnwer->m_asny_shyb);
        pOnwer->m_asny_shyb_invoked = false;
    }
    _endthreadex(0);
    return 0;
}
​
short CocxCtrl::YbInit(LPCTSTR pInitInfo)
{
    Lock g(m_asny_shyb);
    
    if(m_asny_shyb_invoked)
    {
        return -2;
    }
    m_asny_shyb_invoked = true;
    
    unsigned int threadId;
    HANDLE hthread = (HANDLE)_beginthreadex(0, 0, YbInitThread, (void*)this, 0, &threadId);
    if(hthread == 0)
    {
        m_asny_shyb_invoked = false;
        return -1;
    }
    CloseHandle(hthread);
    return 0;
}

标签：pStr,szErrMsg,自定义,asny,CocxCtrl,手动,ocx,shyb
来源： https://www.cnblogs.com/zhangmo/p/16363399.html