[CONNECT C++] TextBlock::FindText() linker headaches

I'm directly copying functions from the IncrementTextTool example into my code. One function calls textBlock->FindText()

private: bool IsSelectionValid(TextBlockPtr& textBlock)
{
	if (textBlock.IsNull())
		return false;

	WString regEx;
	TextBlock::FindTextParametersPtr findParams;
	// Setup for 'Find'-to search numbers in the string of the Text block using regular expression.
	SetupForFind(regEx, findParams);

	// Check if the string of the Text block has numbers.
	return (textBlock->FindText(regEx.c_str(), findParams.get(), textBlock->CreateStartCaret().get(), nullptr)).IsValid();
}

However, it doesn't link:

1>     Creating library C:\Program Files\Bentley\MicroStation CONNECT Edition\MicroStation\mdlapps_development/srs_changeFont.lib and object C:\Program Files\Bentley\MicroStation CONNECT Edition\MicroStation\mdlapps_development/srs_changeFont.exp
1>ChangeFontTool.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: class Bentley::RefCountedPtr<struct Bentley::DgnPlatform::TextBlock::FindTextMatch> __cdecl Bentley::DgnPlatform::TextBlock::FindTextW(wchar_t const *,struct Bentley::DgnPlatform::TextBlock::FindTextParameters const *,struct Bentley::DgnPlatform::Caret const *,struct Bentley::DgnPlatform::Caret const *)const " (__imp_?FindTextW@TextBlock@DgnPlatform@Bentley@@QEBA?AV?$RefCountedPtr@UFindTextMatch@TextBlock@DgnPlatform@Bentley@@@3@PEB_WPEBUFindTextParameters@123@PEBUCaret@23@2@Z)
1>C:\Program Files\Bentley\MicroStation CONNECT Edition\MicroStation\mdlapps_development/srs_changeFont.dll : fatal error LNK1120: 1 unresolved externals

but when I build the example from the BMAKE file, it links and works fine. Why?? Could it have something to do with the a linker setting? It's obviously there in the .lib file... I've confirmed that I am including all the same lib files as the BMAKE is calling for.

Bruce