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//**@@@*@@@****************************************************
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//**@@@*@@@****************************************************
//
// FileName: CommonMacros.h
//
// Abstract: Useful macros
//
// ----------------------------------------------------------------------------
#pragma once
#include <windef.h>
#include <windows.h>
//-------------------------------------------------------------------------
// Description:
//
// If the condition evaluates to TRUE, jump to the given label.
//
// Parameters:
//
// condition - [in] code that fits in if statement
// label - [in] label to jump if condition is met
//
#define IF_TRUE_JUMP(condition, label) \
if (condition) \
{ \
goto label; \
}
//-------------------------------------------------------------------------
// Description:
//
// If the condition evaluates to FALSE, jump to the given label.
//
// Parameters:
//
// condition - [in] code that fits in if statement
// label - [in] label to jump if condition is met
//
#define IF_FALSE_JUMP(condition, label) \
if (!condition) \
{ \
goto label; \
}
//-------------------------------------------------------------------------
// Description:
//
// If the hresult passed FAILED, jump to the given label.
//
// Parameters:
//
// _hresult - [in] Value to check
// label - [in] label to jump if condition is met
//
#define IF_FAILED_JUMP(_hresult, label) \
if (FAILED(_hresult)) \
{ \
goto label; \
}
//-------------------------------------------------------------------------
// Description:
//
// If the hresult passed SUCCEEDED, jump to the given label.
//
// Parameters:
//
// _hresult - [in] Value to check
// label - [in] label to jump if condition is met
//
#define IF_SUCCEEDED_JUMP(_hresult, label) \
if (SUCCEEDED(_hresult)) \
{ \
goto label; \
}
//-------------------------------------------------------------------------
// Description:
//
// If the condition evaluates to TRUE, perform the given statement
// then jump to the given label.
//
// Parameters:
//
// condition - [in] Code that fits in if statement
// action - [in] action to perform in body of if statement
// label - [in] label to jump if condition is met
//
#define IF_TRUE_ACTION_JUMP(condition, action, label) \
if (condition) \
{ \
action; \
goto label; \
}
//-------------------------------------------------------------------------
// Description:
//
// If the hresult FAILED, perform the given statement then jump to
// the given label.
//
// Parameters:
//
// _hresult - [in] Value to check
// action - [in] action to perform in body of if statement
// label - [in] label to jump if condition is met
//
#define IF_FAILED_ACTION_JUMP(_hresult, action, label) \
if (FAILED(_hresult)) \
{ \
action; \
goto label; \
}
//-------------------------------------------------------------------------
// Description:
//
// Closes a handle and assigns NULL.
//
// Parameters:
//
// h - [in] handle to close
//
#define SAFE_CLOSE_HANDLE(h) \
if (NULL != h) \
{ \
CloseHandle(h); \
h = NULL; \
}
//-------------------------------------------------------------------------
// Description:
//
// Addref an interface pointer
//
// Parameters:
//
// p - [in] object to addref
//
#define SAFE_ADDREF(p) \
if (NULL != p) \
{ \
(p)->AddRef();; \
}
//-------------------------------------------------------------------------
// Description:
//
// Releases an interface pointer and assigns NULL.
//
// Parameters:
//
// p - [in] object to release
//
#define SAFE_RELEASE(p) \
if (NULL != p) \
{ \
(p)->Release(); \
(p) = NULL; \
}
//-------------------------------------------------------------------------
// Description:
//
// Deletes a pointer and assigns NULL. Do not check for NULL because
// the default delete operator checks for it.
//
// Parameters:
//
// p - [in] object to delete
//
#define SAFE_DELETE(p) \
delete p; \
p = NULL;
//-------------------------------------------------------------------------
// Description:
//
// Deletes an array pointer and assigns NULL. Do not check for NULL because
// the default delete operator checks for it.
//
// Parameters:
//
// p - [in] Array to delete
//
#define SAFE_DELETE_ARRAY(p) \
delete [] p; \
p = NULL;
//-------------------------------------------------------------------------
// Description:
//
// Frees a block of memory allocated by CoTaskMemAlloc and assigns NULL to
// the pointer
//
// Parameters:
//
// p - [in] Pointer to memory to free
//
#define SAFE_COTASKMEMFREE(p) \
if (NULL != p) \
{ \
CoTaskMemFree(p); \
(p) = NULL; \
}
//-------------------------------------------------------------------------
// Description:
//
// Frees a DLL loaded with LoadLibrary and assigns NULL to the handle
//
// Parameters:
//
// h - [in] Handle to DLL to free
//
#define SAFE_FREELIBRARY(h) \
if (NULL != h) \
{ \
FreeLibrary(h); \
(h) = NULL; \
}
//-------------------------------------------------------------------------
// Description:
//
// Used to validate a read pointer
//
// Parameters:
//
// p - [in] read pointer.
// s - [in] size of memory in bytes pointed to by p.
//
#define IS_VALID_READ_POINTER(p, s) ((NULL != p) || (0 == s))
//-------------------------------------------------------------------------
// Description:
//
// Used to validate a write pointer
//
// Parameters:
//
// p - [in] write pointer.
// s - [in] size of memory in bytes pointed to by p.
//
#define IS_VALID_WRITE_POINTER(p, s) ((NULL != p) || (0 == s))
//-------------------------------------------------------------------------
// Description:
//
// Used to validate a read pointer of a particular type
//
// Parameters:
//
// p - [in] typed read pointer
//
#define IS_VALID_TYPED_READ_POINTER(p) IS_VALID_READ_POINTER((p), sizeof *(p))
//-------------------------------------------------------------------------
// Description:
//
// Used to validate a write pointer of a particular type
//
// Parameters:
//
// p - [in] typed write pointer
//
#define IS_VALID_TYPED_WRITE_POINTER(p) IS_VALID_WRITE_POINTER((p), sizeof *(p))
// ---------------------------------------------------------------------------
// Macros that wrap windows messages. Similar to those in windowsX.h and
// commctrl.h
//
#if !defined Static_SetIcon
#define Static_SetIcon(hwnd, hi) \
(BOOL)SNDMSG((hwnd), STM_SETIMAGE, (WPARAM)IMAGE_ICON, (LPARAM)(hi))
#endif
#define TrackBar_SetTickFrequency(hwnd, f) \
(BOOL)SNDMSG((hwnd), TBM_SETTICFREQ, (WPARAM)(f), 0)
#define TrackBar_SetBuddy(hwnd, f, hbud) \
(HWND)SNDMSG((hwnd), TBM_SETBUDDY, (WPARAM)(f), (LPARAM)hbud)
#define TrackBar_GetPos(hwnd) \
(int)SNDMSG((hwnd), TBM_GETPOS, 0, 0)
#define TrackBar_SetPos(hwnd, pos) \
SNDMSG((hwnd), TBM_SETPOS, (WPARAM)TRUE, (LPARAM)pos)
#define TrackBar_SetRange(hwnd, min, max) \
SNDMSG((hwnd), TBM_SETRANGE , (WPARAM)TRUE, (LPARAM) MAKELONG(min, max))
#define TrackBar_SetThumbLength(hwnd, l) \
SNDMSG((hwnd), TBM_SETTHUMBLENGTH, (WPARAM)l, 0);
#define TrackBar_SetPageSize(hwnd, n) \
SNDMSG((hwnd), TBM_SETPAGESIZE, 0, (LPARAM)n)
#define Window_GetFont(hwnd) \
(HFONT)SNDMSG((hwnd), WM_GETFONT, 0, 0)
#define Window_SetFont(hwnd, font) \
SNDMSG((hwnd), WM_SETFONT, (WPARAM)font, FALSE)
// ----------------------------------------------------------------------
// A struct for holding a rect in easier terms than a RECT struct
//
struct SRECT
{
int x, y, w, h;
SRECT()
{
x = y = w = h = 0;
}
SRECT(int X, int Y, int W, int H)
{
x = X; y = Y; w = W; h = H;
}
SRECT(RECT* prc)
{
x = prc->left;
y = prc->top;
w = prc->right - prc->left;
h = prc->bottom - prc->top;
}
};
#define HNS_PER_SECOND (10ull * 1000ull * 1000ull)
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