I have only libwxmsw26.a and added already it everywhere....
Project->Build options->Linker = C:\wx\lib\gcc_lib\libwxmsw26.a (both wxWidgets Application and default)
Project->Build options->Directories->Compiler = C:\wx\include (both wxWidgets Application and default)
Project->Build options->Directories->Linker = C:\wx\lib\gcc_lib (both wxWidgets Application and default)
I don't know where should I add libwxmsw26.a else?