I want to use the expression edit control in a VC++ DLL, how?

Question

Good morning,
as mentioned I want to use the expression edit control in my DLL written with VSC++ 2005 MFC. But I ran into some problems:
If I just add the ExpressionEdit control from the toolbar to my dialog then the dialog will not be shown during runtime. As soon as I delete the control the dialog shows up.
In the TS examples is one called 'TCL' (...National Instruments\TestStand 4.1.1\Examples\Tcl\source\EditSubstep). This is programmed in C++ and uses the expression edit control.
The original dll works fine but as soon as I compile the editsubstep with my VS 2005 I get a runtime error (see image).
What do i have to do to be able to use this control?
Has anybody an working example for me?
Cheers Frank
Solved!
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Attachments:
fehler.JPG ‏21 KB

Answer 1

@juergen: how do I know which lib I am using?
I am using this COM-Control: c:\programme\national Instruments\testStand 4.1.1\bin\exprEdit.dll
@Doug: I created the sequence as you described and used this for debugging to find out where the problem is.
I found out, that the problem must be somewhere here:
dlgcore.cpp
BOOL CWnd::CreateDlgIndirect(LPCDLGTEMPLATE lpDialogTemplate,
CWnd* pParentWnd, HINSTANCE hInst)
Line 314:
hWnd = ::CreateDialogIndirect(hInst, lpDialogTemplate,
pParentWnd->GetSafeHwnd(), AfxDlgProc);
Without the ExpEdit-control hWnd has a Value
with control hWnd is 0.
This is what I found out so far.
Frank