[RESOLVED] struct definition advice

[DaveDavis]

My original project is in C#:

//C#:
private struct udtCellInfo
{
	public int Row;
	public int Col;
	public short Style;			
	public byte Attribute1;			
	public string Text;			
	public bool HasText;
			
}

private struct udtCellStyle
{	
        public Font Font;	
	public Color ForeColor;
	public Color BackColor;
}

private struct udtStyleCollection
{
   public  udtCellStyle SelectionStyle;
   public  short StyleID;   
}

Now I am using C++ ATL, what is the closer definitions for Color, byte, string type
and internal struct so that my code can be less changes?
Note: some structs may save into binary file w/o lost unicode.

//C++:
struct udtCellInfo
{
	int Row;
	int Col;
	short Style;			
	char Attribute1; //char or BYTE???			
	string Text;	//string or _bstr_t or LPCTSTR Or CString?		
	bool HasText;
			
}

struct udtCellStyle
{	
	HFONT Font; //HFONT  Or LOGFONT???
        COLORREF ForeColor; //COLORREF or OLE_COLOR???
	COLORREF BackColor;
}

struct udtStyleCollection
{
   udtCellStyle SelectionStyle; // udtCellStyle* SelectionStyle
   short StyleID;   
}

[Niya]

Use COLORREF for Color, not OLE_COLOR. OLR_COLOR is meant for COM and it comes with all kinds of weird semantics of it's own. Someone reading your code could mistakenly believe you actually want a COM OLE_COLOR and not just a plain old RGB colour value.

HFont for Font is fine.

For String, use you might want wchar_t* which is a pointer to a UTF-16LE Unicode buffer, the exact kind used in C# to support the String type.

[DaveDavis]

Use COLORREF for Color, not OLE_COLOR. OLR_COLOR is meant for COM and it comes with all kinds of weird semantics of it's own. Someone reading your code could mistakenly believe you actually want a COM OLE_COLOR and not just a plain old RGB colour value.

All structures are used internal so they are not COM.

[DaveDavis]

For String, use you might want wchar_t* which is a pointer to a UTF-16LE Unicode buffer, the exact kind used in C# to support the String type.

Can I use CString for easier operations, because those struct are used internally and not involve struct pack saving.

[Niya]

Can I use CString for easier operations, because those struct are used internally and not involve struct pack saving.

Sure, why not.