help with image dll interfacing vb

Hi all.

I want to know how to pass a bitmap from vb into a vc++ dll, so that I can do some transformations on it, and then have the dll pass the new bitmap back to vb.

Probably better to ask this question in a VB forum too.
Extreme Visual Basic

Thanks for the reply, but I just came from a vb forum and they suggested I try here.

arf arf no-one wants to solve your problems!

I can't really help you with this, because I've forgotten what VB I ever knew. Sorry.

Pass the hDC to the VC++ DLL, and then you can manipulate it using the GDI functions.

excuss my lacking knowledge, but what is hdc

HDC is a handle to a device context. A device context contains information about how things will be drawn to the screen. I suggest you google "device context" and go to the MSDN reference.

Basically, you'll use a WinAPI function to load your DLL. You'll then obtain the HDC for the bitmap, and pass it to the DLL.

Thanks. I do that search and get back to you.