[wxVTK] Problem with wxVTK and _UNICODE wxwidgets.

[<joh...@ao...>]

Dear All,

I am doing a project with wxwidgets, wxVTK and VTK under VISTA and VC9 environment.
I have several question as follows:

1. Does wxVTK support _UNICODE built wxwidgets?
2. How can I tell the compiler to use the "non-unicode" build? In my project under the VISTA and VC9 environment, it seems that the "_UNICODE" has been defined so it forces me to use unicode version of wxwidgets otherwise it won't compiled. 

Using "unicode built" ver. of wxwidgets, everything works fine without using wxVTK, but if I use wxVTK, the compiler generates error linking messages as follows. 

1>------ Build started: Project: wxTRY1, Configuration: Debug Win32 ------
1>Compiling...
1>TRYWXMyFrameTRY1.cpp
1>Compiling...
1>TRYWxFrameMain.cpp
1>Linking...
1>?? Creating library C:\TRY1\wxTRY1.lib and object C:\TRY1\Debug\wxTRY1.exp
1>TRYWXMyFrameTRY1.obj : error LNK2019: unresolved external symbol "public: __thiscall wxVTKRenderWindowInteractor::wxVTKRenderWindowInteractor(class wxWindow *,int,class wxPoint const &,class wxSize const &,long,class wxString const &)" (??0wxVTKRenderWindowInteractor@@QAE@PAVwxWindow@@HABVwxPoint@@ABVwxSize@@JABVwxString@@@Z) referenced in function "public: __thiscall TRYWXMyFrameTRY1::TRYWXMyFrameTRY1(class wxWindow *)" (??0TRYWXMyFrameTRY1@@QAE@PAVwxWindow@@@Z)
1>C:\TRY1\Debug\wxTRY1.exe : fatal error LNK1120: 1 unresolved externals
1>Build log was saved at "file://c:\TRY1\Debug\BuildLog.htm"
1>wxTRY1 - 2 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========


I have tried to build the whole wxVTK project and samples with "non-uncode" ver. of wxwidgets, everything's fine, but if I use "unicode" version, the compiler generates similar linking error like in my project.

How should I solve this problem?
PS. I am sure that there's no "_UNICODE" in my IDE's pre-processor setting.

Environment: vc9, vista 32, wxwidgets 2.8.7, wxVTK 1.2, vtk 5.1x and all compiled under vc9

Thanks very much.

John

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