Missing VCL Equivalent to GtkToolbar?

[Samuel Mehrbrodt]

Hi,

while working on the Photo Album Dialog, I wanted create a ToolBar with 
some ToolButtons in Glade.
However, when I try to load it, I get the following error:

warn:vcl.layout:9432:1:include/vcl/builder.hxx:246: widget "up_btn" not found in .ui
warn:vcl.layout:9432:1:include/vcl/builder.hxx:248: .ui widget "up_btn" needs to correspond to vcl type 10PushButton
soffice.bin: /home/samuel/programming/libreoffice/include/vcl/builder.hxx:249: T* VclBuilder::get(T*&, rtl::OString) [with T = PushButton]: Zusicherung »w && dynamic_cast<T*>(w)« nicht erfüllt.

Program received signal SIGABRT, Aborted.
0x00002aaaaba1d425 in raise () from /lib/x86_64-linux-gnu/libc.so.6

Does this not yet have a VCL equivalent?
Attached are my current modifications (see Line 137+)

Samuel
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