winapi - Win32, How to access button on toolbar -

let's have compiled binary program runs , exposes gui on screen. need program in win32 access toolbar, find button , click on it.

i know how find hwnd of toolbar, don't know how enumerate buttons on it. ideas how in win32 calls?

is there tool spy++ capable of showing button handles under toolbar? spy++ doesn't it.

thanks

if standard win32 toolbar control, send toolbar tb_buttoncount message determine how many buttons on toolbar, send tb_getbutton message retrieve information button @ given index.

the tricky part tbbutton structure receives button info needs allocated in same process owns toolbar, have to:

1. call getwindowthreadprocessid() retrieve toolbar's process id
2. call openprocess() handle process
3. call virtualallocex() allocate structure inside of process
4. send tb_getbutton message(s) toolbar, specifying pointer returned virtualallocex()
5. call readprocessmemory() copy structure data own process can process needed
6. call virtualfreeex() free allocated memory.