windows-nt/Source/XPSP1/NT/multimedia/media/mciwave/gmem.h

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2020-09-26 03:20:57 -05:00
// Copyright (c) 1994 Microsoft Corporation
/*
gmem.h
This module supplies macros for fixed global memory
allocation compatible with those used in the Multimedia
extensions to Windows 3.x. It is included to simplify
porting of the Windows 3.x 16 bit code.
Jul-16-91 NigelT
*/
#ifndef _GMEMMACROS_
#define _GMEMMACROS_
__inline LPBYTE GlobalAllocPtr(DWORD flags, DWORD cb)
{
HANDLE h;
LPBYTE lp = NULL;
h = GlobalAlloc(flags, cb);
if (h) {
lp = GlobalLock(h);
}
return(lp);
}
#define GlobalFreePtr(lp) \
{ \
HANDLE h; \
h = GlobalHandle(lp); \
if (GlobalUnlock(h)) { \
/* memory still locked!! */ \
} \
h = GlobalFree(h); \
}
#endif // _GMEMMACROS_