为什么主程序收不到线程发送的消息？？？

Question

基于Dialog的MFC程序WinServerDlg.h 中定义了#define WM_LOG WM_USER + 1000protected:
afx_msg LRESULT OnLogMessage(WPARAM wParam, LPARAM lParam); 
WinServerDlg.cpp 中定义BEGIN_MESSAGE_MAP(CWinServerDlg, CDialog)
//{{AFX_MSG_MAP(CWinServerDlg)
ON_MESSAGE(WM_LOG, OnLogMessage)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()LRESULT CWinServerDlg::OnLogMessage(WPARAM wParam, LPARAM lParam)
{
//MessageBox("OnLogMessage!");
m_EDLog.SetWindowText("123");
return 1;
}创建线程 CWinThread *hHandle_s;
hHandle_s=AfxBeginThread(Listen,this);在线程发送消息的代码 ::SendMessage((HWND)lpParam,WM_LOG,0,0);
为什么主线程中不能收到消息，触发
LRESULT CWinServerDlg::OnLogMessage(WPARAM wParam, LPARAM lParam)
事件？

Answer 1

线程发送消息时用的参数不对；
把
::SendMessage((HWND)lpParam,WM_LOG,0,0);改为：
CWinServerDlg *pDlg = (CWinServerDlg *)lpParam;
::SendMessage(pDlg->m_hWnd,WM_LOG,0,0);

Answer 2

younggle(洋溢):
改了后，还是收不到消息哦

Answer 3

检测你的HWND是不是要发送消息的窗口句柄