Re: [fpc-pascal] How to call C++ function with Vector
> I thought FPC had the ability to execute a fragment of Lua, and Lua I believe can call C++ directly. No, Lua can only call C, just like FPC. You do know the problem of C++ interfacing, don't you? -- Sent from: http://free-pascal-general.1045716.n5.nabble.com/ ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] How to call C++ function with Vector
On 26/09/17 19:00, leledumbo via fpc-pascal wrote: Would it be possible to do this via a Lua shim? How is it even related with that? I thought FPC had the ability to execute a fragment of Lua, and Lua I believe can call C++ directly. -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] How to call C++ function with Vector
> Would it be possible to do this via a Lua shim? How is it even related with that? -- Sent from: http://free-pascal-general.1045716.n5.nabble.com/ ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
[fpc-pascal] PTCGraph: Monitor, Orientation and Size Selection
I have a system with 3 Monitors, 2 Horizontal 1920x1200 and 1 Vertical 1200 x 1920. I'm wondering if there is a way to specify which monitor my program using PTCGraph will run on. I can make it run on a particular monitor by changing it to the main display, but it would be nice to leave that alone and still run my program on any monitor. I'm using a Windows 10 64bit machine. Is there / could there be a way to specify which monitor by the monitor identification number in display settings? Also I noticed I cannot run vertical resolutions on a horizontal monitor or horizontal resolutions on a vertical monitor, in a window... so I can't specify a 768x1024 window on a horizontal monitor or 1024x768 window on a vertical monitor, even though either would fit. I'm also curious if there is a way to make an odd size window, like 1000x300 or something that is totally not a standard resolution. Are there ways of doing these things that I just am not aware of? Thanks James ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] How to call C++ function with Vector
Marco van de Voort wrote: I myself generally solve this with a wrapper DLL, by crafting a DLL in C++ that exports a C (not C++) interface, and then use that. The same method as QT is used from Lazarus (via wrapper dll/.so qtpas) ___ Thanks. I think I will follow your advice. Dennis ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] How to call C++ function with Vector
On 26/09/17 11:00, leledumbo via fpc-pascal wrote: I am stuck at the keyword vector. >> How is it translated into free pascal? It's hard, you must create additional wrapper that exposes simpler type(pointer or array of pchar) OR make wrapper for the vector methods andsimply declare it as an opaque pointer. std::vector is template/generic C++class that implements a dynamic array functionality, but it can't be usedoutside C++. Would it be possible to do this via a Lua shim? -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] How to call C++ function with Vector
In our previous episode, Dennis said: > I have a windows 32-bit dll written in C++ (probably C++ Builder). > It has 1 function which I need to call: > > int SPAPI_GetProduct(vector& apiProdList) > > I am stuck at the keyword vector. It is not a keyword it is a generic type. So that is not easy, specially since C++ and Pascal classes differ. And even if the call succeeds, getting results from apiprodlist is major problem number two. You can try to match the C++ code with carefully crafted pascal code, but that requires knowledge about implementation details of the C++ implementaton. I avoided that way (as too complicated and too fragile), but Rudy Velthuis has an article on it (C++ <-> Delphi) http://www.rvelthuis.de/articles/articles-cppobjs.html I myself generally solve this with a wrapper DLL, by crafting a DLL in C++ that exports a C (not C++) interface, and then use that. The same method as QT is used from Lazarus (via wrapper dll/.so qtpas) ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
Re: [fpc-pascal] How to call C++ function with Vector
> I am stuck at the keyword vector. > > How is it translated into free pascal? It's hard, you must create additional wrapper that exposes simpler type (pointer or array of pchar) OR make wrapper for the vector methods and simply declare it as an opaque pointer. std::vector is template/generic C++ class that implements a dynamic array functionality, but it can't be used outside C++. -- Sent from: http://free-pascal-general.1045716.n5.nabble.com/ ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
[fpc-pascal] How to call C++ function with Vector
I have a windows 32-bit dll written in C++ (probably C++ Builder). It has 1 function which I need to call: int SPAPI_GetProduct(vector& apiProdList) I am stuck at the keyword vector. How is it translated into free pascal? Is the following correct? type TSPApiProduct_Array = array of SPApiProduct; function SPAPI_GetProduct(var apiProdList : TSPApiProduct);stdcall; Thanks a lot in advance. Dennis ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
