March 01, 2000
User Interface Programming
Listing 2: internal.h — Definitions for internal use
#include <windows.h>
#include <windowsx.h>
#include <tchar.h>
#include <assert.h>
#include "wdjsub.h"
typedef struct SUBCLASSING {
WNDPROC wndProc;
WNDPROC wndProcSaved;
void *pData;
struct SUBCLASSING *pNext;
} SUBCLASSING;
#ifdef _UNITTEST_
LPCTSTR getPropertyName( void );
void trace( HWND hwnd, LPCTSTR psz );
#else
#ifdef _DEBUG
#define trace( hwnd, X ) OutputDebugString( X )
#else
#define trace( hwnd, X )
#endif
#endif
#ifdef _DEBUG
#define verify assert
void __cdecl tracef( HWND hwnd, LPCTSTR pszFmt, ... );
#define trace1( hwnd, fmt, A ) tracef( hwnd, fmt, A )
#define trace2( hwnd, fmt, A,B ) tracef( hwnd, fmt, A, B )
#define trace3( hwnd, fmt, A,B,C ) tracef( hwnd, fmt, A, B, C )
LPCTSTR getProcName( WNDPROC wndProc );
#else
#define verify( X ) ( X )
#define trace1( hwnd, fmt, A )
#define trace2( hwnd, fmt, A,B )
#define trace3( hwnd, fmt, A,B,C )
#endif
#define getWndProc( hwnd ) \
( (WNDPROC) GetWindowLong( hwnd, GWL_WNDPROC ) )
#define getHead( hwnd ) \
( (SUBCLASSING *) GetProp( hwnd, getPropertyName() ) )
/* End of File */
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