c++ - SCardGetStatusChange First-chance exception -



c++ - SCardGetStatusChange First-chance exception -

i'm using next code in thread:

scardgetstatuschange(hcontext, timeout, rgreaderstates_t, nbreaders);

where:

scardcontext hcontext; dword timeout; scard_readerstate *rgreaderstates_t = null; dword nbreaders;

everything works correctly, function generate lot of error:

first-chance exception @ 0x7510c42d in app.exe: microsoft c++ exception: unsigned long @ memory location 0x05a0f3a8.

i'm using visual studio 2012 , windows-7 64bit.

please help. thanks!

c++ visual-studio-2012 winscard

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