added resizable combobox classes

ResizableLib/ResizableComboBox.cpp

@@ -0,0 +1,55 @@
+// ResizableComboBox.cpp : implementation file
+//
+
+#include "stdafx.h"
+#include "ResizableComboBox.h"
+
+#ifdef _DEBUG
+#define new DEBUG_NEW
+#undef THIS_FILE
+static char THIS_FILE[] = __FILE__;
+#endif
+
+/////////////////////////////////////////////////////////////////////////////
+// CResizableComboBox
+
+CResizableComboBox::CResizableComboBox()
+{
+}
+
+CResizableComboBox::~CResizableComboBox()
+{
+	if (m_ctrlListBox.GetSafeHwnd() != NULL)
+		m_ctrlListBox.UnsubclassWindow();
+}
+
+
+BEGIN_MESSAGE_MAP(CResizableComboBox, CComboBox)
+	//{{AFX_MSG_MAP(CResizableComboBox)
+	ON_WM_CTLCOLOR()
+	//}}AFX_MSG_MAP
+END_MESSAGE_MAP()
+
+/////////////////////////////////////////////////////////////////////////////
+// CResizableComboBox message handlers
+
+HBRUSH CResizableComboBox::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
+{
+	HBRUSH hbr = CComboBox::OnCtlColor(pDC, pWnd, nCtlColor);
+
+	if (nCtlColor == CTLCOLOR_LISTBOX)
+	{
+		if (!(GetStyle() & CBS_SIMPLE)
+			&& (m_ctrlListBox.GetSafeHwnd() == NULL))
+		{
+			TRACE("Combo: 0x%08X\n", pWnd->m_hWnd);
+
+			// attach to the owned listbox
+			m_ctrlListBox.m_pOwnerCombo = this;
+			m_ctrlListBox.SubclassWindow(pWnd->m_hWnd);
+		}
+	}
+
+	return hbr;
+}
+

ResizableLib/ResizableComboBox.h

@@ -0,0 +1,55 @@
+#if !defined(AFX_RESIZABLECOMBOBOX_H__CAEDF06D_C4F5_49E4_A783_AD7D894CF9A0__INCLUDED_)
+#define AFX_RESIZABLECOMBOBOX_H__CAEDF06D_C4F5_49E4_A783_AD7D894CF9A0__INCLUDED_
+
+#include "ResizableComboLBox.h"	// Added by ClassView
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+// ResizableComboBox.h : header file
+//
+
+/////////////////////////////////////////////////////////////////////////////
+// CResizableComboBox window
+
+class CResizableComboBox : public CComboBox
+{
+// Construction
+public:
+	CResizableComboBox();
+
+// Attributes
+public:
+
+protected:
+	CResizableComboLBox m_ctrlListBox;
+
+// Operations
+public:
+
+// Overrides
+	// ClassWizard generated virtual function overrides
+	//{{AFX_VIRTUAL(CResizableComboBox)
+	public:
+	protected:
+	//}}AFX_VIRTUAL
+
+// Implementation
+public:
+	virtual ~CResizableComboBox();
+
+// Generated message map functions
+protected:
+	//{{AFX_MSG(CResizableComboBox)
+	afx_msg HBRUSH OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor);
+	//}}AFX_MSG
+
+	DECLARE_MESSAGE_MAP()
+};
+
+/////////////////////////////////////////////////////////////////////////////
+
+//{{AFX_INSERT_LOCATION}}
+// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
+
+#endif // !defined(AFX_RESIZABLECOMBOBOX_H__CAEDF06D_C4F5_49E4_A783_AD7D894CF9A0__INCLUDED_)