FIX: C2664 Error w/Property Sheet Component Added to CDocument (139301)
The information in this article applies to:
- Microsoft Visual C++ 4.0
- Microsoft Visual C++ 4.2
- Microsoft Visual C++ 4.1
This article was previously published under Q139301 SYMPTOMS
When you insert a modeless property sheet from the Property Sheet component
in the Component Gallery into a CDocument-derived class or other non-CWnd
derived class, the compiler generates this error:
C2664:'Create' : cannot convert parameter 5 from 'class CDocDerivedClass
*const' to 'class CWnd *' (new behavior; please see help).
CAUSE
The modeless property sheet component placed in an application includes a
CMiniFrameWnd-derived class that actually contains the modeless property
sheet. When using the component, the application calls Create() on the
CMiniFrameWnd-derived class. This Create() requires a CWnd* to its parent
window as its fifth argument. The code generated for your application
passes 'this' to the Create() call. CDocument is not derived from CWnd;
therefore, passing the 'this' pointer from the CDocument into the
CMiniFrame::Create() function causes the compiler error.
RESOLUTION
Place the property sheet component into a class that is derived from CWnd.
STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed
at the beginning of this article. The problem was corrected in Visual C++
version 5.0.
| Modification Type: | Major | Last Reviewed: | 10/17/2003 |
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| Keywords: | kbBug kbfix kbNoUpdate KbUIDesign kbVC500fix KB139301 |
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