你要先这样
1. #define WM_SET_BAR (WM_USER+1000)
再这样
1. BEGIN_MESSAGE_MAP(CAppDlg, CDialogEx)
2. ON_MESSAGE(WM_SET_BAR, &CAppDlg::Func1)
3. END_MESSAGE_MAP()
然后这样
1. afx_msg LRESULT SetBar(WPARAM wParam, LPARAM lParam)
2. {
3. //...
4. }
最后才能这样
1. UINT RefreshStatusBar(void* param)
2. {
3. //...
4. auto p_dlg = (CAppDlg*)param;
5. PostMessage(p_dlg->GetSafeHwnd(), WM_SET_BAR, NULL, NULL);
6. //...
7.
8. return NULL;
9. }
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