Problem with linking of Midas.dll on 64 bit

[Jirka52 2]

I try to prepare my application with TClientDatset for 64 bit, but I have problem with linking of "Midas.dll" into exe file.

I have following code for 32 bit, it works.

//Midas
#include <Datasnap.Midas.hpp>
#include <Datasnap.DSIntf.hpp>
//force the linker to include the code; It's not enough just to include the header file
#pragma package(smart_init)
#pragma comment(lib, "Midas.lib")
#pragma link "Midas.lib"

extern "C" __stdcall int DllGetDataSnapClassObject (REFCLSID rclsid, REFIID riid, void** ppv);
int WINAPI _tWinMain(HINSTANCE, HINSTANCE, LPTSTR, int)
{
	try
	{
		bool app_is_terminating = false;
		//ensure only one instance
		#ifndef SIMULATION
		JclAppInstances()->CheckSingleInstance();
        #endif
		//disable windows ghosting
        ComputingUnit::DisableProcessWindowsGhosting();
		Application->Initialize();
		Application->MainFormOnTaskBar = true;
		//register midas.dll       
        RegisterMidasLib(DllGetDataSnapClassObject);
       

        //create main form
		Application->CreateForm(__classid(TfrmMain), &frmMain);  

It is from this post:

https://stackoverflow.com/questions/32658754/deploy-project-without-midas-dll-c

 

However, I con not find a solution for 64 bit. I google it for 2 days now and nothing.

The problem is missing "Midas.a" file in 64 bit.

I have latest Rad Studio 12.2 with update 2 (RAD Studio 12 Version 29.0.53982.0329), Windows 10.

Do you know how to solve this problem on 64 bit?

Thank you very much

[Lars Fosdal 1782]

You'll should find a 64-bit Midas DLL in your redistributable folder:
C:\Program Files (x86)\Embarcadero\Studio\23.0\Redist\win64

See also: 

 

[Jirka52 2]

I know where is midas.dll for 64 bit.

I do not know how to link 64 bit verions "midas.a" into 64 bit exe file.

File "midas.a" does not exist in 64 bit version.

It is not problem in 32 bit, here is "Midas.lib" file - 32 bit, problem is only 64 bit.