Windows消息：如何自定义窗口消息与线程消息

自定义消息

一、自定义窗口消息

1. #define WM_MY_MSG WM_USER + 0x100
2. afx_msg LRESULT OnMyMsg(WPARAM, LPARAM);

LRESULT CTestDlg::OnMyMsg(WPARAM wParam, LPARAM lParam)   {...}
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BEGIN_MESSAGE_MAP(CTestDlg, CDialog)    ...    ON_MESSAGE(WM_MY_MSG, &CTestDlg::OnMyMsg)END_MESSAGE_MAP()
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二、自定义线程消息

1. #define WM_MY_THRD_MSG WM_USER + 100
2. afx_msg void OnMyThrdMsg(WPARAM, LPARAM);

void CTestApp::OnMyThrdMsg(WPARAM wParam, LPARAM lParam)   {...}
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BEGIN_MESSAGE_MAP(CTestApp, CWinAppEx)    ...    ON_THREAD_MESSAGE(WM_MY_THRD_MSG, &CTestApp::OnMyThrdMsg)END_MESSAGE_MAP()
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那怎样在当前线程中触发消息呢？有以下两种方法：

::PostMessage(NULL, WM_MY_THRD_MSG, 0, 0);::PostThreadMessage(::GetCurrentThreadId(), WM_MY_THRD_MSG, 0, 0);
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