https://community.intel.com/t5/Software-Archive/calling-a-function-in-a-dll/m-p/974648#M24769 hi, <BR /> <BR /> i want to call a function from a third part dll in my program.i have tried using intefaces but always end up getting a link error.Loadlibrary and getprocaddress both return success values,however the link error persists.Please let me know if there is a different way of calling the function. <BR />--rs Tue, 20 Nov 2001 11:57:20 GMT Intel_C_Intel 2001-11-20T11:57:20Z https://community.intel.com/t5/Software-Archive/calling-a-function-in-a-dll/m-p/974648#M24769 hi, <BR /> <BR /> i want to call a function from a third part dll in my program.i have tried using intefaces but always end up getting a link error.Loadlibrary and getprocaddress both return success values,however the link error persists.Please let me know if there is a different way of calling the function. <BR />--rs Tue, 20 Nov 2001 11:57:20 GMT https://community.intel.com/t5/Software-Archive/calling-a-function-in-a-dll/m-p/974648#M24769 Intel_C_Intel 2001-11-20T11:57:20Z https://community.intel.com/t5/Software-Archive/calling-a-function-in-a-dll/m-p/974649#M24770 If you use LoadLibrary/GetProcAddress, you have to specify a Cray pointer to the dll function: <BR /><PRE> INTERFACE SUBROUTINE DllFoo(... END INTERFACE POINTER(p_DllFoo, DllFoo) ... p_DllFoo = GetProcAddress(... </PRE> <BR /> <BR />...wait, wait, what do you mean a <B>link</B> error? How can you get link error when calls succeed at run-time? If you mean a run-time error (Access Violation or something), it's probably mismatch in calling convention/arguments. You also have to put appropriate !DEC$ATTRIBUTES STDCALL/C for function name and appropriate !DEC$ATTRIBUTES REFERENCE for arguments if necessary into INTERFACE block. <BR /> <BR />Jugoslav Tue, 20 Nov 2001 21:40:29 GMT https://community.intel.com/t5/Software-Archive/calling-a-function-in-a-dll/m-p/974649#M24770 Jugoslav_Dujic 2001-11-20T21:40:29Z