Copyright (c) 1984 - 1998 Prolog Development Center A/S
Written by Konstantin Ivanov
The Microsoft Visual C++ 5.0 SP3 was used to create this example.
This example demonstrates how ActiveX control can use Prolog code that is contained in DLL. The main target of this DLL is to display a map of Denmark in a given viewport. The AciveX control creates a custom control with the help of an export function of above mentioned DLL (dll1.dll) and passes its rectangle as a viewport to show a map.
1. Run Visual Prolog and build <PRODIR>\FOREIGN\EXAMPLES\DLLS\UseVPI\Dll1\dll1.vpr.
2. Open X_VPI.dsw by Microsoft Developer Studio, build and run the example with the help of ActiveX test container this example.
See also:
Using Visual Prolog DLL’s from other languages