wxPrivateDataObject works under MSW as well (hopefully it still does under

GTK too)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2578 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
1999-05-26 22:39:42 +00:00
parent 238d735dc2
commit 3f480da37c
14 changed files with 683 additions and 632 deletions

View File

@@ -1,19 +1,142 @@
///////////////////////////////////////////////////////////////////////////////
// Name: dataobj.h
// Purpose: common data object classes
// Author: Robert Roebling, Vadim Zeitlin
// Modified by:
// Created: 26.05.99
// RCS-ID: $Id$
// Copyright: (c) wxWindows Team
// Licence: wxWindows license
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DATAOBJ_H_BASE_
#define _WX_DATAOBJ_H_BASE_
#if defined(__WXMSW__)
#include "wx/msw/ole/dataobj.h"
// ----------------------------------------------------------------------------
// wxDataFormat identifies the single format of data
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxDataFormat
{
public:
// the clipboard formats under Win32 are UINTs
typedef unsigned int NativeFormat;
wxDataFormat(NativeFormat format = wxDF_INVALID) { m_format = format; }
wxDataFormat& operator=(NativeFormat format)
{ m_format = format; return *this; }
// defautl copy ctor/assignment operators ok
// comparison (must have both versions)
bool operator==(wxDataFormatId format) const
{ return m_format == (NativeFormat)format; }
bool operator!=(wxDataFormatId format) const
{ return m_format != (NativeFormat)format; }
bool operator==(const wxDataFormat& format) const
{ return m_format == format.m_format; }
bool operator!=(const wxDataFormat& format) const
{ return m_format != format.m_format; }
// explicit and implicit conversions to NativeFormat which is one of
// standard data types (implicit conversion is useful for preserving the
// compatibility with old code)
NativeFormat GetFormatId() const { return m_format; }
operator NativeFormat() const { return m_format; }
// this only works with standard ids
void SetId(wxDataFormatId format) { m_format = format; }
// string ids are used for custom types - this SetId() must be used for
// application-specific formats
wxString GetId() const;
void SetId(const wxChar *format);
private:
// returns TRUE if the format is one of those defined in wxDataFormatId
bool IsStandard() const { return m_format > 0 && m_format < wxDF_MAX; }
NativeFormat m_format;
};
#include "wx/msw/ole/dataobj.h"
#elif defined(__WXMOTIF__)
#include "wx/motif/dataobj.h"
#include "wx/motif/dataobj.h"
#elif defined(__WXGTK__)
#include "wx/gtk/dataobj.h"
#include "wx/gtk/dataobj.h"
#elif defined(__WXQT__)
#include "wx/qt/dnd.h"
#include "wx/qt/dnd.h"
#elif defined(__WXMAC__)
#include "wx/mac/dnd.h"
#include "wx/mac/dnd.h"
#elif defined(__WXSTUBS__)
#include "wx/stubs/dnd.h"
#include "wx/stubs/dnd.h"
#endif
// ---------------------------------------------------------------------------
// wxPrivateDataObject is a specialization of wxDataObject for app specific
// data (of some given kind, derive directly from wxDataObject if you wish to
// efficiently support multiple formats)
// ---------------------------------------------------------------------------
class WXDLLEXPORT wxPrivateDataObject : public wxDataObject
{
DECLARE_DYNAMIC_CLASS( wxPrivateDataObject )
public:
wxPrivateDataObject();
virtual ~wxPrivateDataObject() { Free(); }
// get the format object - it is used to decide whether we support the
// given output format or not
wxDataFormat& GetFormat() { return m_format; }
// set data. will make copy of the data
void SetData( const void *data, size_t size );
// returns pointer to data
void *GetData() const { return m_data; }
// get the size of the data
virtual size_t GetSize() const;
// copy data to the given buffer
virtual void WriteData( void *dest ) const;
// these functions are provided for wxGTK compatibility, their usage is
// deprecated - use GetFormat().SetId() instead
void SetId( const wxString& id ) { m_format.SetId(id); }
wxString GetId() const { return m_format.GetId(); }
// implement the base class pure virtuals
virtual wxDataFormat GetPreferredFormat() const
{ return m_format; }
virtual bool IsSupportedFormat(wxDataFormat format) const
{ return m_format == format; }
virtual size_t GetDataSize() const
{ return m_size; }
virtual void GetDataHere(void *dest) const
{ WriteData(dest); }
protected:
// the function which really copies the data - called by WriteData() above
// and uses GetSize() to get the size of the data
//
// VZ: I really wonder why do we need it
void WriteData( const void *data, void *dest ) const;
private:
// free the data
inline void Free();
// the data
size_t m_size;
void *m_data;
// the data format
wxDataFormat m_format;
};
#endif
// _WX_DATAOBJ_H_BASE_

View File

@@ -109,7 +109,7 @@
// Currently Only MS-Windows/NT, XView and Motif are supported
//
#if defined(__HPUX__) && !defined(__WXGTK__)
#ifndef __WXMOTIF__
#ifndef __WXMOTIF__
#define __WXMOTIF__
#endif // __WXMOTIF__
#endif
@@ -408,7 +408,7 @@ typedef void (*wxFunction) (wxObject&, wxEvent&);
#define wxMINIMIZE wxICONIZE
#define wxMAXIMIZE 0x2000
#define wxTHICK_FRAME 0x1000
#define wxSYSTEM_MENU 0x0800
#define wxSYSTEM_MENU 0x0800
#define wxMINIMIZE_BOX 0x0400
#define wxMAXIMIZE_BOX 0x0200
#define wxTINY_CAPTION_HORIZ 0x0100
@@ -432,7 +432,7 @@ typedef void (*wxFunction) (wxObject&, wxEvent&);
#else
// Under Unix, the dialogs don't have a system menu. Specifying
// wxSYSTEM_MENU here, will make a close button appear.
# define wxDEFAULT_DIALOG_STYLE (wxCAPTION)
# define wxDEFAULT_DIALOG_STYLE (wxCAPTION)
#endif
@@ -778,9 +778,7 @@ typedef enum
// Don't do parent client adjustments (for implementation only)
#define wxSIZE_NO_ADJUSTMENTS 0x0008
#ifndef __WXGTK__
enum wxDataFormat
enum wxDataFormatId
{
wxDF_INVALID = 0,
wxDF_TEXT = 1, /* CF_TEXT */
@@ -799,11 +797,10 @@ enum wxDataFormat
wxDF_ENHMETAFILE = 14,
wxDF_FILENAME = 15, /* CF_HDROP */
wxDF_LOCALE = 16,
wxDF_PRIVATE = 20
wxDF_PRIVATE = 20,
wxDF_MAX
};
#endif
/* Virtual keycodes */
enum wxKeyCode
@@ -884,7 +881,7 @@ enum wxKeyCode
WXK_SCROLL,
WXK_PAGEUP,
WXK_PAGEDOWN,
WXK_NUMPAD_SPACE,
WXK_NUMPAD_TAB,
WXK_NUMPAD_ENTER,

View File

@@ -2,9 +2,9 @@
#define _WX_DND_H_BASE_
#if defined(__WXMSW__)
#include "wx/dataobj.h"
#include "wx/msw/ole/dropsrc.h"
#include "wx/msw/ole/droptgt.h"
#include "wx/msw/ole/dataobj.h"
#elif defined(__WXMOTIF__)
#include "wx/motif/dnd.h"
#elif defined(__WXGTK__)

View File

@@ -31,63 +31,42 @@ class wxBitmapDataObject;
class wxPrivateDataObject;
class wxFileDataObject;
//-------------------------------------------------------------------------
// wxDataType (internal)
//-------------------------------------------------------------------------
enum wxDataType
{
wxDF_INVALID = 0,
wxDF_TEXT = 1, /* CF_TEXT */
wxDF_BITMAP = 2, /* CF_BITMAP */
wxDF_METAFILE = 3, /* CF_METAFILEPICT */
wxDF_SYLK = 4,
wxDF_DIF = 5,
wxDF_TIFF = 6,
wxDF_OEMTEXT = 7, /* CF_OEMTEXT */
wxDF_DIB = 8, /* CF_DIB */
wxDF_PALETTE = 9,
wxDF_PENDATA = 10,
wxDF_RIFF = 11,
wxDF_WAVE = 12,
wxDF_UNICODETEXT = 13,
wxDF_ENHMETAFILE = 14,
wxDF_FILENAME = 15, /* CF_HDROP */
wxDF_LOCALE = 16,
wxDF_PRIVATE = 20
};
//-------------------------------------------------------------------------
// wxDataFormat (internal)
//-------------------------------------------------------------------------
class wxDataFormat : public wxObject
{
DECLARE_CLASS( wxDataFormat )
DECLARE_CLASS( wxDataFormat )
public:
wxDataFormat();
wxDataFormat( wxDataType type );
wxDataFormat( const wxString &id );
wxDataFormat( const wxChar *id );
wxDataFormat( wxDataFormat &format );
wxDataFormat( const GdkAtom atom );
wxDataFormat();
wxDataFormat( wxDataFormatId type );
wxDataFormat( const wxString &id );
wxDataFormat( const wxChar *id );
wxDataFormat( wxDataFormat &format );
wxDataFormat( const GdkAtom atom );
void SetType( wxDataFormatId type );
wxDataFormatId GetType() const;
/* the string Id identifies the format of clipboard or DnD data. a word
* processor would e.g. add a wxTextDataObject and a wxPrivateDataObject
* to the clipboard - the latter with the Id "application/wxword", an
* image manipulation program would put a wxBitmapDataObject and a
* wxPrivateDataObject to the clipboard - the latter with "image/png". */
wxString GetId() const;
void SetId( const wxChar *id );
GdkAtom GetAtom();
void SetAtom(GdkAtom atom) { m_hasAtom = TRUE; m_atom = atom; }
void SetType( wxDataType type );
wxDataType GetType() const;
wxString GetId() const;
void SetId( const wxChar *id );
GdkAtom GetAtom();
void SetAtom(GdkAtom atom) { m_hasAtom = TRUE; m_atom = atom; }
private:
wxDataType m_type;
wxString m_id;
bool m_hasAtom;
GdkAtom m_atom;
wxDataFormatId m_type;
wxString m_id;
bool m_hasAtom;
GdkAtom m_atom;
};
//-------------------------------------------------------------------------
@@ -102,36 +81,36 @@ public:
/* constructor */
wxDataBroker();
/* add data object */
void Add( wxDataObject *dataObject, bool preferred = FALSE );
private:
private:
/* OLE implementation, the methods don't need to be overridden */
/* get number of supported formats */
virtual size_t GetFormatCount() const;
/* return nth supported format */
/* return nth supported format */
virtual wxDataFormat &GetNthFormat( size_t nth ) const;
/* return preferrd/best supported format */
/* return preferrd/best supported format */
virtual wxDataFormat &GetPreferredFormat() const;
/* search through m_dataObjects, return TRUE if found */
virtual bool IsSupportedFormat( wxDataFormat &format ) const;
/* search through m_dataObjects and call child's GetSize() */
virtual size_t GetSize( wxDataFormat& format ) const;
/* search through m_dataObjects and call child's WriteData(dest) */
virtual void WriteData( wxDataFormat& format, void *dest ) const;
/* implementation */
public:
wxList m_dataObjects;
size_t m_preferred;
};
@@ -143,29 +122,29 @@ public:
class wxDataObject : public wxObject
{
DECLARE_DYNAMIC_CLASS( wxDataObject )
public:
/* constructor */
wxDataObject();
/* destructor */
~wxDataObject();
/* write data to dest */
/* write data to dest */
virtual void WriteData( void *dest ) const = 0;
/* get size of data */
/* get size of data */
virtual size_t GetSize() const = 0;
/* implementation */
wxDataFormat &GetFormat();
wxDataType GetFormatType() const;
wxDataFormatId GetFormatType() const;
wxString GetFormatId() const;
GdkAtom GetFormatAtom() const;
wxDataFormat m_format;
};
@@ -182,27 +161,27 @@ public:
/* default constructor. call SetText() later or override
WriteData() and GetSize() for working on-demand */
wxTextDataObject();
/* constructor */
wxTextDataObject( const wxString& data );
/* set current text data */
void SetText( const wxString& data );
/* get current text data */
wxString GetText() const;
/* by default calls WriteString() with string set by constructor or
by SetText(). can be overridden for working on-demand */
virtual void WriteData( void *dest ) const;
/* by default, returns length of string as set by constructor or
/* by default, returns length of string as set by constructor or
by SetText(). can be overridden for working on-demand */
virtual size_t GetSize() const;
/* write string to dest */
void WriteString( const wxString &str, void *dest ) const;
/* implementation */
wxString m_data;
@@ -220,20 +199,20 @@ public:
/* default constructor */
wxFileDataObject();
/* add file name to list */
void AddFile( const wxString &file );
/* get all filename as one string. each file name is 0 terminated,
the list is double zero terminated */
wxString GetFiles() const;
/* write list of filenames */
virtual void WriteData( void *dest ) const;
/* return length of list of filenames */
/* return length of list of filenames */
virtual size_t GetSize() const;
/* implementation */
wxString m_files;
@@ -253,66 +232,21 @@ public:
wxBitmapDataObject();
wxBitmapDataObject( const wxBitmap& bitmap );
void SetBitmap( const wxBitmap &bitmap );
wxBitmap GetBitmap() const;
virtual void WriteData( void *dest ) const;
virtual size_t GetSize() const;
void WriteBitmap( const wxBitmap &bitmap, void *dest ) const;
// implementation
wxBitmap m_bitmap;
};
//----------------------------------------------------------------------------
// wxPrivateDataObject is a specialization of wxDataObject for app specific data
//----------------------------------------------------------------------------
class wxPrivateDataObject : public wxDataObject
{
DECLARE_DYNAMIC_CLASS( wxPrivateDataObject )
public:
/* see wxTextDataObject for explanation of functions */
wxPrivateDataObject();
~wxPrivateDataObject();
/* the string Id identifies the format of clipboard or DnD data. a word
* processor would e.g. add a wxTextDataObject and a wxPrivateDataObject
* to the clipboard - the latter with the Id "application/wxword", an
* image manipulation program would put a wxBitmapDataObject and a
* wxPrivateDataObject to the clipboard - the latter with "image/png". */
void SetId( const wxString& id );
/* get id */
wxString GetId() const;
/* set data. will make internal copy. */
void SetData( const char *data, size_t size );
/* returns pointer to data */
char* GetData() const;
virtual void WriteData( void *dest ) const;
virtual size_t GetSize() const;
void WriteData( const char *data, void *dest ) const;
// implementation
size_t m_size;
char* m_data;
wxString m_id;
};
#endif
#endif
//__GTKDNDH__

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@@ -31,63 +31,42 @@ class wxBitmapDataObject;
class wxPrivateDataObject;
class wxFileDataObject;
//-------------------------------------------------------------------------
// wxDataType (internal)
//-------------------------------------------------------------------------
enum wxDataType
{
wxDF_INVALID = 0,
wxDF_TEXT = 1, /* CF_TEXT */
wxDF_BITMAP = 2, /* CF_BITMAP */
wxDF_METAFILE = 3, /* CF_METAFILEPICT */
wxDF_SYLK = 4,
wxDF_DIF = 5,
wxDF_TIFF = 6,
wxDF_OEMTEXT = 7, /* CF_OEMTEXT */
wxDF_DIB = 8, /* CF_DIB */
wxDF_PALETTE = 9,
wxDF_PENDATA = 10,
wxDF_RIFF = 11,
wxDF_WAVE = 12,
wxDF_UNICODETEXT = 13,
wxDF_ENHMETAFILE = 14,
wxDF_FILENAME = 15, /* CF_HDROP */
wxDF_LOCALE = 16,
wxDF_PRIVATE = 20
};
//-------------------------------------------------------------------------
// wxDataFormat (internal)
//-------------------------------------------------------------------------
class wxDataFormat : public wxObject
{
DECLARE_CLASS( wxDataFormat )
DECLARE_CLASS( wxDataFormat )
public:
wxDataFormat();
wxDataFormat( wxDataType type );
wxDataFormat( const wxString &id );
wxDataFormat( const wxChar *id );
wxDataFormat( wxDataFormat &format );
wxDataFormat( const GdkAtom atom );
wxDataFormat();
wxDataFormat( wxDataFormatId type );
wxDataFormat( const wxString &id );
wxDataFormat( const wxChar *id );
wxDataFormat( wxDataFormat &format );
wxDataFormat( const GdkAtom atom );
void SetType( wxDataFormatId type );
wxDataFormatId GetType() const;
/* the string Id identifies the format of clipboard or DnD data. a word
* processor would e.g. add a wxTextDataObject and a wxPrivateDataObject
* to the clipboard - the latter with the Id "application/wxword", an
* image manipulation program would put a wxBitmapDataObject and a
* wxPrivateDataObject to the clipboard - the latter with "image/png". */
wxString GetId() const;
void SetId( const wxChar *id );
GdkAtom GetAtom();
void SetAtom(GdkAtom atom) { m_hasAtom = TRUE; m_atom = atom; }
void SetType( wxDataType type );
wxDataType GetType() const;
wxString GetId() const;
void SetId( const wxChar *id );
GdkAtom GetAtom();
void SetAtom(GdkAtom atom) { m_hasAtom = TRUE; m_atom = atom; }
private:
wxDataType m_type;
wxString m_id;
bool m_hasAtom;
GdkAtom m_atom;
wxDataFormatId m_type;
wxString m_id;
bool m_hasAtom;
GdkAtom m_atom;
};
//-------------------------------------------------------------------------
@@ -102,36 +81,36 @@ public:
/* constructor */
wxDataBroker();
/* add data object */
void Add( wxDataObject *dataObject, bool preferred = FALSE );
private:
private:
/* OLE implementation, the methods don't need to be overridden */
/* get number of supported formats */
virtual size_t GetFormatCount() const;
/* return nth supported format */
/* return nth supported format */
virtual wxDataFormat &GetNthFormat( size_t nth ) const;
/* return preferrd/best supported format */
/* return preferrd/best supported format */
virtual wxDataFormat &GetPreferredFormat() const;
/* search through m_dataObjects, return TRUE if found */
virtual bool IsSupportedFormat( wxDataFormat &format ) const;
/* search through m_dataObjects and call child's GetSize() */
virtual size_t GetSize( wxDataFormat& format ) const;
/* search through m_dataObjects and call child's WriteData(dest) */
virtual void WriteData( wxDataFormat& format, void *dest ) const;
/* implementation */
public:
wxList m_dataObjects;
size_t m_preferred;
};
@@ -143,29 +122,29 @@ public:
class wxDataObject : public wxObject
{
DECLARE_DYNAMIC_CLASS( wxDataObject )
public:
/* constructor */
wxDataObject();
/* destructor */
~wxDataObject();
/* write data to dest */
/* write data to dest */
virtual void WriteData( void *dest ) const = 0;
/* get size of data */
/* get size of data */
virtual size_t GetSize() const = 0;
/* implementation */
wxDataFormat &GetFormat();
wxDataType GetFormatType() const;
wxDataFormatId GetFormatType() const;
wxString GetFormatId() const;
GdkAtom GetFormatAtom() const;
wxDataFormat m_format;
};
@@ -182,27 +161,27 @@ public:
/* default constructor. call SetText() later or override
WriteData() and GetSize() for working on-demand */
wxTextDataObject();
/* constructor */
wxTextDataObject( const wxString& data );
/* set current text data */
void SetText( const wxString& data );
/* get current text data */
wxString GetText() const;
/* by default calls WriteString() with string set by constructor or
by SetText(). can be overridden for working on-demand */
virtual void WriteData( void *dest ) const;
/* by default, returns length of string as set by constructor or
/* by default, returns length of string as set by constructor or
by SetText(). can be overridden for working on-demand */
virtual size_t GetSize() const;
/* write string to dest */
void WriteString( const wxString &str, void *dest ) const;
/* implementation */
wxString m_data;
@@ -220,20 +199,20 @@ public:
/* default constructor */
wxFileDataObject();
/* add file name to list */
void AddFile( const wxString &file );
/* get all filename as one string. each file name is 0 terminated,
the list is double zero terminated */
wxString GetFiles() const;
/* write list of filenames */
virtual void WriteData( void *dest ) const;
/* return length of list of filenames */
/* return length of list of filenames */
virtual size_t GetSize() const;
/* implementation */
wxString m_files;
@@ -253,66 +232,21 @@ public:
wxBitmapDataObject();
wxBitmapDataObject( const wxBitmap& bitmap );
void SetBitmap( const wxBitmap &bitmap );
wxBitmap GetBitmap() const;
virtual void WriteData( void *dest ) const;
virtual size_t GetSize() const;
void WriteBitmap( const wxBitmap &bitmap, void *dest ) const;
// implementation
wxBitmap m_bitmap;
};
//----------------------------------------------------------------------------
// wxPrivateDataObject is a specialization of wxDataObject for app specific data
//----------------------------------------------------------------------------
class wxPrivateDataObject : public wxDataObject
{
DECLARE_DYNAMIC_CLASS( wxPrivateDataObject )
public:
/* see wxTextDataObject for explanation of functions */
wxPrivateDataObject();
~wxPrivateDataObject();
/* the string Id identifies the format of clipboard or DnD data. a word
* processor would e.g. add a wxTextDataObject and a wxPrivateDataObject
* to the clipboard - the latter with the Id "application/wxword", an
* image manipulation program would put a wxBitmapDataObject and a
* wxPrivateDataObject to the clipboard - the latter with "image/png". */
void SetId( const wxString& id );
/* get id */
wxString GetId() const;
/* set data. will make internal copy. */
void SetData( const char *data, size_t size );
/* returns pointer to data */
char* GetData() const;
virtual void WriteData( void *dest ) const;
virtual size_t GetSize() const;
void WriteData( const char *data, void *dest ) const;
// implementation
size_t m_size;
char* m_data;
wxString m_id;
};
#endif
#endif
//__GTKDNDH__

View File

@@ -23,6 +23,7 @@
#include "wx/list.h"
#include "wx/module.h"
#include "wx/dataobj.h" // for wxDataFormat
// These functions superceded by wxClipboard, but retained in order to
// implement wxClipboard, and for compatibility.

View File

@@ -20,37 +20,14 @@ struct IDataObject;
// ----------------------------------------------------------------------------
// wxDataObject is a "smart" and polymorphic piece of data.
//
// @@@ it's currently "read-only" from COM point of view, i.e. we don't support
// SetData. We don't support all advise functions neither (but it's easy to
// do if we really want them)
// TODO it's currently "read-only" from COM point of view, i.e. we don't support
// SetData. We don't support all advise functions neither (but it's easy to
// do if we really want them)
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxDataObject
{
public:
// all data formats (values are the same as in windows.h, do not change!)
enum StdFormat
{
Invalid,
Text,
Bitmap,
MetafilePict,
Sylk,
Dif,
Tiff,
OemText,
Dib,
Palette,
Pendata,
Riff,
Wave,
UnicodeText,
EnhMetafile,
Hdrop,
Locale,
Max
};
// function to return symbolic name of clipboard format (debug messages)
static const char *GetFormatName(wxDataFormat format);
@@ -62,7 +39,7 @@ public:
// get the best suited format for our data
virtual wxDataFormat GetPreferredFormat() const = 0;
// decide if we support this format (should be one of values of
// StdFormat enumerations or a user-defined format)
// wxDataFormatId enumerations or a user-defined format)
virtual bool IsSupportedFormat(wxDataFormat format) const = 0;
// get the (total) size of data
virtual size_t GetDataSize() const = 0;
@@ -93,9 +70,9 @@ public:
// implement base class pure virtuals
virtual wxDataFormat GetPreferredFormat() const
{ return (wxDataFormat) wxDataObject::Text; }
{ return wxDF_TEXT; }
virtual bool IsSupportedFormat(wxDataFormat format) const
{ return format == wxDataObject::Text || format == wxDataObject::Locale; }
{ return format == wxDF_TEXT || format == wxDF_LOCALE; }
virtual size_t GetDataSize() const
{ return m_strText.Len() + 1; } // +1 for trailing '\0'of course
virtual void GetDataHere(void *pBuf) const
@@ -133,9 +110,9 @@ public:
// implement base class pure virtuals
virtual wxDataFormat GetPreferredFormat() const
{ return (wxDataFormat) wxDataObject::Bitmap; }
{ return wxDF_BITMAP; }
virtual bool IsSupportedFormat(wxDataFormat format) const
{ return format == wxDataObject::Bitmap; }
{ return format == wxDF_BITMAP; }
virtual size_t GetDataSize() const
{ wxASSERT(false); return 0; } // BEMIMP
virtual void GetDataHere(void *pBuf) const