Haven't done much of this before. I am trying to use a dll with a function definition of:
Long _stdcall TransGeogPt(LPSTR psGridFile, long lDirection, double dLatitude, double dLongitude, double* pdLatNew, double* pdLongNew, double* pdLatAcc, double* pdLongAcc)
I have translated this as:
function(psGridFile: PChar; lDirection: Integer; dLatitude, dLongitude: Double; pdLatNew, pdLongNew, pdLatAcc, pdLongAcc: PDouble): Integer;
However trying to use this function I get:
Access violation at address 77C43B4C in module 'MSVCRT.DLL'. Read of address 00000000'.
Any ideas? Have I translated wrong?
The interface translation looks right, so long as a Double is an 8-byte floating point. Are you sure you're supplying all the right values for the pointers you're sending in to that? Allocating the buffers and so on?
-- Corey Murtagh The Electric Monk "Quidquid latine dictum sit, altum viditur!" _______________________________________________ Delphi mailing list [EMAIL PROTECTED] http://ns3.123.co.nz/mailman/listinfo/delphi
