TreeView Class - what to use?

[beakie]

I am trying to create a treeview control.

What do I pass into CreateWindow?

WC_TREEVIEW doesn't exist... what is it defined as? What header file is it in?

[beakie]

I have included windows.h

This was enough to create most controls I have needed... is there a way to do it using only this one header file?

[modoran]

It is defined in CommCtrl.h, which you must include. Call CreateWindowEx() to create the control and don't forget to call InitCommonControlsEx().

I also think you must define some macros like WINVER before using it. Just open commctrl.h in a text editor and search for WC_TREEVIEW and see what macros it expects.