I ported this code to use libcurl and I think I got it to work.

Tom - have you checked whether it is complete?

Can also inject dll's into MT4 process space.

-Change a few ressources , add menu's , buttons etc , and have the dll's loaded dynamically.

Injecting dll's :

Can do it :

-Changing the PE headers (insert a new dll loading) .
-Inject in process space. (INJLIB.).
-Use Microsoft's Detour API..(Adding a detour , jumping back to it after your own called function is done...Use LoadLibraryEx right inside your detour is feasable too..) :
Basically in ASM :

Call function(x) (This is the function you will be detouring).

Function x(){
jmp MyDetour}

Function Mydetour {

_asm{pushad}//This are look at registers , you NEED to save them , to return them to exact same when you return...Microsoft Detour library makes this easy..
Insert function here
_asm (popad}
}

Easier to read this tutorial: http://www.codeproject.com/dll/DLL_I...n_tutorial.asp

From there, could add custom resources to MT4, add SQL functions, Excel, and many more things , just adding DLL's and loading them.

Let me know how it goes , ready to help..(But not do all the work..) , and yes I know quite a bit in this field..(C++,ASM, .C#) .

Hi all,

Can someone help me about an issue i have on creating a dll for metatrader?

I use code::Blocks or DevC++. Both create my dll without error but in metatrader i have the error: cannot call function 'Test' from dll 'ExpertSample.dll' (error 127)

All the settings are ok, dll allowed, dll in libraries folder ...

I guess that the problem is the parameters settings of my project or ide before compiling in my IDE.

If someone has an idea about this

Thanks a lot,
FerruFx

hi all
any one know how can i convert my indicator to DLL extension??????

Just for information:
we have this thread Create your own MetaTrader extension (dll)

yes i see it
but it is not for indicators

I use the following MT4 commands:

handle=FileOpen(file, FILE_BIN|FILE_READ);

FileReadString

FileReadDouble

FileIsEnding

Can the dll execute similar functions?
Can the gFileRead do these?

Or is there a better way using kernel32.dll?


I'm not familiar with C++ or dlls, just MT4 code.

Hi,

For those that don't have C#, C++ or VB.net. Download a free open source version here:

SourceForge.net: SharpDevelop

The open source project can be found here:

SharpDevelop @ic#code

You'll love it.

Best regards
Derik

hy all

how i make a delphi code for use in MQL4... like DLL access...

anbody have a sample?

regards

charles

Some other threads related to this subject:

Create your own MetaTrader extension (dll)

.Net DLL wrapper

dll tutorial for Visual Studio 2005