passing parameters from VB6 to C

[lisjump]

I have two very complex programs, one is written in C and one is written in VB6. I have values that I need to pass from the VB6 program into the C program....at the moment the only way I can think to do this is to write and read from a file, but this will get very messy, as the data should be passed every second.....does anyone have any ideas on how I might be able to do this?

 

[bjd4jc]

how about command line arguments?

 

[lisjump]

command line arguments? as in DOS?

 

[JohnYingling]

Use MSDN on CD or at

http://www.msdn.microsoft.com

. Go to Using VB / Component Tools Guide / Accessing DLLs and the Windows API.

http://www.VBResizer.com

Generate Forms/Controls Resizing/Tabbing Class

http://www.VBCompare.com

Compare Code (Text)

http://www.VBSortGen.com

Generate Sort Class in VB or VBScript

 

[Jon4747]

Hi,

Create a C .ocx

javascript:gothread(222,183450)

Jon

 

[Jon4747]

Lets try that again

thread222-183450

 

[chiph]

lisjump:
command line arguments? as in DOS?

Sure. They're still valid, even in Windows XP. You're generally limited to about 128 characters though, and you can't pass certain characters that the command shell uses (like \, |, >, <, etc.). There's a list in Windows Help of the invalid path characters.

If you need to pass more than that, you're looking at writing your info to a file, and passing the path to that file to your program. I would suggest using an .INI file format, as there are API functions in both VB and C (Win32) for reading/writing those.

Chip H.