Need api constant for returning listview columns count

[frigginjerk]

Im passing the hwnd of a listview to a csutom made dll which then fills the listview via sendmessage api calls. I found the api constants for this here:
http://www.mvps.org/vbnet/code/comctl/lvmembers.htm

But now I need to retrieve the listview.columns.count property.

Anybody have any idea on how to do this via api or how to find the correct constant to use with sendmessage.

[crptcblade]

Private Const HDM_FIRST = &H1200
Private Const HDM_GETITEMCOUNT = (HDM_FIRST + 0)

wParam = 0
lParam = 0

[frigginjerk]

crptcblade, won't that return the listcount? I need the column count.

[crptcblade]

Nope, LVM_GETITEMCOUNT will return the listcount.

[frigginjerk]

sweet, I'll try it out.

Can you tell me how to come about these constants myself?

[crptcblade]

I looked in the header files that come with Visual C++. Other than looking in those header files, I have no idea.

[frigginjerk]

Originally posted by crptcblade
I looked in the header files that come with Visual C++. Other than looking in those header files, I have no idea.

thanks, crptcblade. That info is very much appreciated.

[The Hobo]

This is a very good program for API constants. This is a very good program for API declarations and examples.