how to set WindowStyleFlag in Ubuntu14.04

[DevinYU]

Hello, every one. Thanks for looking this.
OS: Ubuntu14.04 X64
wxWidget version: 3.1
I set window style flag like this :

frame->SetWindowStyleFlag(wxFRAME_TOOL_WINDOW )

but it does not work what i want "No taskbar button, no system menu"

#define wxFRAME_TOOL_WINDOW 0x0004 // No taskbar button, no system menu

What I want to set window flag.

Thanks!

[catalin]

Look at wxFrame flags, i.e. wxCAPTION.