visual c++ - custom or subclass the group box control in vc++ -


how make group box/ static control subclass or custom control.

how group box / static controls count. can apply rounded corners group box/ static controls.

how make group box/ static control subclass or custom control.

derive class cbutton. handle nm_customdraw notification custom drawing. alternatively 1 use bs_ownerdraw window style, mutually exclusive bs_groupbox. when using nm_customdraw original window style flags can kept.

note nm_customdraw sent parent window, can reroute message handle in control class this:

begin_message_map(cmygroupbox, cbutton)     on_notify_reflect(nm_customdraw, oncustomdraw) end_message_map()

the definition of oncustomdraw() this:

void cmygroupbox::oncustomdraw(nmhdr* pnmhdr, lresult* presult) {     auto pnmc = reinterpret_cast<nmcustomdraw*>( pnmhdr );     // query pnmc members , custom drawing documented on msdn.     // assign result *presult. }

how group box / static controls count.

use enumchildwindows() enumerate child windows. in callback call getclassname() check if windows class "button" , call getwindowlong(hwnd, gwl_style) check if bs_groupbox flag set.


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