VC 訊息傳遞方法與實現

// 1 定義訊息#define WM_MSG_TEST WM_USER+101// 2 發送訊息PostMessage(AfxGetApp()->GetMainWnd()->m_hWnd, WM_MSG_TEST, NULL, NULL);// 3 聲明訊息函數afx_msg LRESULT OnMsgTest(WPARAM wParam, LPARAM lParam);// 4 綁定訊息BEGIN_MESSAGE_MAP(CQrPhoneDlg, CDialog)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_MESSAGE(WM_MSG_TEST, OnMsgTest)//}}AFX_MSG_MAPON_BN_CLICKED(IDC_BUTTON_TEST, &CXXXDlg::OnBnClickedButtonTest)END_MESSAGE_MAP()// 5 定義訊息函數LRESULT CXXXDlg::OnMsgTest(WPARAM wParam, LPARAM lParam){// MessageBox(L"hahaha");return TRUE;}