Problem with a command

[Bronxernijn]

Hello, Im having trouble with the WriteText command. I probably didnt state it well...

edtConvertFrom.WriteText("You Edited The Box!");

I use wxDev-C++ and I get the following errors:

In member function `void Getallenstelsels_OmrekenenFrm::chcConvertFromUpdateUI(wxUpdateUIEvent&)':
`WriteText' has not been declared
request for member of non-aggregate type before '(' token
[Build Error] exe: *** [Objects/MingW/Getallenstelsels OmrekenenFrm.o] Error 1

What did I do wrong?