Linking C++ code to a VB User Interface

[Stretchwickster]

I just wondered if it was possible to design a front end (GUI) in VB and link it to Visual C++ code.

Your advice would be very much appreciated

 

[TheInsider]

Yes with the use of ActiveX/COM components. Look for info on creating an ActiveX dll.

 

[alan93]

I have some example code of how to import C++ DLL functions to a VB front end, let me know if this is what you need.

 

[Stretchwickster]

I'd really appreciate it if u could send me that code. It will probably help me out big-time! Thanx mate!

 

[alan93]

This uses specific string variables but this can be modified for other types:

put this call under Option Explicit:

Private Declare Function Compile Lib "YourDLLName.dll" (ByVal FilePath1 As String, ByVal FilePath2 As String, ByVal CodeValue As String) As Long


Function called in C++ DLL:
This function should be declared in your exports (.def) also

bool _stdcall Compile(LPCTSTR filepath, LPCTSTR filepath, LPCTSTR codevalue)


The function is then called by an event in VB program, button click or whatever

Compile(App.Path + "\" + txt1.Text + ".txt", App.Path + "\" + txt2.Text + ".txt", txtCode.Text)


And of course the C++ DLL would be in your computer's system folder.

 

[Jon4747]

I've had better luck creating an OCX. file using the MFC ActiveX control wizard and importing thru VB properties -> references

Jon