MFC DLL contains a dialog box for an activeX control, which can be displayed normally when called in the export function of DLL. But delete the export function, directly call the dialog box in the initialization function of DLL, and then use EXE to load DLL to run but can not display the dialog box normally, comment out the activex control, the dialog box can be displayed normally. May I ask why? How to make the DLL initialization function call dialog box display normally?
not all operations can be performed within DllMain () . For restricted operations, other execution methods, such as new threads, should be considered.
< hr > refer to the MSDN documentation
https://docs.microsoft.com/en...
You should never perform the following tasks from within DllMain:
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