ComboBox

Development Platform:

Visual C++

MultiColumnComboBox.h：Code Content

							// By Xiao Wu Guang
// MultiColumnComboBox.h : header file
//
/////////////////////////////////////////////////////////////////////////////
// CMultiColumnComboBox window
#ifndef _MULTICOLUMNCOMBOBOX_H_
#define _MULTICOLUMNCOMBOBOX_H_
 
#define LEFTMARGIN_OF_DROPDOWNLIST		2
#define LEFTMARGIN_OF_CONTROL			1
#define RIGHTMARGIN_OF_DROPDOWNLIST		4 
#define SPACE_BETWEEN_COLUMN			1 
class CMultiColumnComboBox : public CComboBox
{
// Construction
public:
	CMultiColumnComboBox();
	
// Attributes
public:
	void	FormatComboBox(UINT TotalColumn = 2, UINT BoundColumn = 0);
	void	SetColumnWidth(UINT ColumnWidth0, ...);
	void	SetColumnAlignStyle(UINT ColumnAlignStyle0, ...);
// Operations
public:
	void	ResetContent();
	int		AddRow(LPCTSTR lpszString0, ...);
// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CMultiColumnComboBox)
	public:
	virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct);
	virtual void MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct);
	//}}AFX_VIRTUAL
// Implementation
public:
	virtual ~CMultiColumnComboBox();
	// Generated message map functions
protected:
private:
	UINT			m_TotalColumn;
	UINT			m_BoundColumn;
	UINT			m_TextItemHeight;
	CPen			m_LightGrayPen;
	UINT*			m_ColumnWidth;
	UINT*			m_ColumnAlignStyle;
	CStringList*	m_ColumnItemList;
	//{{AFX_MSG(CMultiColumnComboBox)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};
/////////////////////////////////////////////////////////////////////////////
#endif

						