mfc程序中使用CoInitializeEx(NULL, COINIT_MULTITHREADED),不能顯示對話框,原因是要換STA的參數
MFC applications must be initialized as single threaded apartment (STA). If you call CoInitializeEx in your InitInstance override, specify COINIT_APARTMENTTHREADED (rather than COINIT_MULTITHREADED).
AfxOleInit CoInitializeEx 問題
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