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WTL for MFC Programmers, Part X - Implementing a Drag and Drop Source

, 16 Jun 2006
A tutorial on using drag and drop in your WTL application.
wtl4mfc10_demo.zip
WTL4MFC10_demo
WTLCabView
release
WTLCabView.exe
res
next.ico
prev.ico
Toolbar.bmp
WTLCabView.exe.manifest
WTLCabView.ico
WTLCabView.dsp
WTLCabView.dsw
// CabFuncs.cpp: callbacks passed to the CAB functions
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "CabFuncs.h"

/////////////////////////////////////////////////////////////////////////////

void* DIAMONDAPI cab_Alloc ( ULONG cb )
{
    return new BYTE[cb];
}

void DIAMONDAPI cab_Free ( void* pvData )
{
    delete[] (BYTE*) pvData;
}

int DIAMONDAPI cab_Open ( char* pszFile, int oflag, int pmode )
{
    return _open ( pszFile, oflag, pmode );
}

UINT DIAMONDAPI cab_Read ( int hf, void* memory, UINT cb )
{
    return (unsigned) _read ( hf, memory, cb );
}

UINT DIAMONDAPI cab_Write ( int hf, void* memory, UINT cb )
{
    return (unsigned) _write ( hf, memory, cb );
}

int DIAMONDAPI cab_Close ( int hf )
{
    return _close(hf);
}

long DIAMONDAPI cab_Seek ( int hf, long dist, int seektype )
{
    return _lseek ( hf, dist, seektype );
}

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About the Author

Michael Dunn
Software Developer (Senior) VMware
United States United States
Michael lives in sunny Mountain View, California. He started programming with an Apple //e in 4th grade, graduated from UCLA with a math degree in 1994, and immediately landed a job as a QA engineer at Symantec, working on the Norton AntiVirus team. He pretty much taught himself Windows and MFC programming, and in 1999 he designed and coded a new interface for Norton AntiVirus 2000.
Mike has been a a developer at Napster and at his own lil' startup, Zabersoft, a development company he co-founded with offices in Los Angeles and Odense, Denmark. Mike is now a senior engineer at VMware.

He also enjoys his hobbies of playing pinball, bike riding, photography, and Domion on Friday nights (current favorite combo: Village + double Pirate Ship). He would get his own snooker table too if they weren't so darn big! He is also sad that he's forgotten the languages he's studied: French, Mandarin Chinese, and Japanese.
 
Mike was a VC MVP from 2005 to 2009.

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