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When I used Visual basic.net 2003 to call a VF dll, I got a error message 'System.NullReferenceException' ocurred in system.windows.forms.dll Additional information:Object reference not set to an instance of an object.Could any expert tell me the reason?
There can be many reasons, but let me suggest you try this. Right click on your Fortran project, select Properties. Click on Fortran, Libraries and change Runtime Library to "Multithread DLL" - or, actually, anything except "Debug Multithreaded".
There can be many reasons, but let me suggest you try this. Right click on your Fortran project, select Properties. Click on Fortran, Libraries and change Runtime Library to "Multithread DLL" - or, actually, anything except "Debug Multithreaded". Then rebuild your DLL.
