EVC connection error.

whbahx

EVC connection error. [Copy link]

I copied the printer USB program under PB to a folder. Use EVC4 to create a dll project. And include these CH files and set the path. The compilation and connection errors are as follows: Creating library ARMV4IRel/apdusb.lib and object ARMV4IRel/apdusb.exp usbapd.obj : error LNK2019: unresolved external symbol RegisterClientSettings referenced in function USBInstallDriver usbapd.obj : error LNK2019: unresolved external symbol RegisterClientDriverID referenced in function USBInstallDriver usbapd.obj : error LNK2019: unresolved external symbol UnRegisterClientDriverID referenced in function USBUnInstallDriver usbapd.obj : error LNK2019: unresolved external symbol UnRegisterClientDriverID referenced in function USBUnInstallDriver usbapd.obj : error LNK2019: unresolved external symbol UnRegisterClientSettings referenced in function USBUnInstallDriver ARMV4IRel/apdusb.dll : fatal error LNK1120: 4 unresolved externals What is going on?

蓝天白云

These are all undefined errors, LZ has a look

makeawish

There are header files, no cpp

daviu1234

These functions are declared in usbdi.h. I have included usbdi.h and usbclient.lib. But the connection still fails. I don't know what the problem is.

chym168

It should be the lack of corresponding library files, the landlord has a look

moseshuilan

Most of the time, the library file (.lib) is missing, or the library file is not linked in, #pragma comment lib