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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* Magnification-win32.h
* Copyright (C) 2018 Gil Eliyahu
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <winapifamily.h>
#pragma region Desktop Family
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
#ifndef __wincodec_h__
#include <wincodec.h>
#endif
#define WC_MAGNIFIERA "Magnifier"
#define WC_MAGNIFIERW L"Magnifier"
#ifdef UNICODE
#define WC_MAGNIFIER WC_MAGNIFIERW
#else
#define WC_MAGNIFIER WC_MAGNIFIERA
#endif
#else
#define WC_MAGNIFIER "Magnifier"
#endif
/* Magnifier Window Styles */
#define MS_SHOWMAGNIFIEDCURSOR 0x0001L
#define MS_CLIPAROUNDCURSOR 0x0002L
#define MS_INVERTCOLORS 0x0004L
/* Filter Modes */
#define MW_FILTERMODE_EXCLUDE 0
#define MW_FILTERMODE_INCLUDE 1
/* Structures */
typedef struct tagMAGTRANSFORM
{
float v[3][3];
} MAGTRANSFORM, *PMAGTRANSFORM;
typedef struct tagMAGIMAGEHEADER
{
UINT width;
UINT height;
WICPixelFormatGUID format;
UINT stride;
UINT offset;
SIZE_T cbSize;
} MAGIMAGEHEADER, *PMAGIMAGEHEADER;
typedef struct tagMAGCOLOREFFECT
{
float transform[5][5];
} MAGCOLOREFFECT, *PMAGCOLOREFFECT;
/* Proptypes for the public functions */
typedef BOOL(WINAPI* MAGINITIALIZE)();
MAGINITIALIZE MagInitialize;
typedef BOOL(WINAPI* MAGUNINITIALIZE)();
MAGUNINITIALIZE MagUninitialize;
typedef BOOL(WINAPI* MAGSETWINDOWSOURCE)(HWND, RECT);
MAGSETWINDOWSOURCE MagSetWindowSource;
typedef BOOL(WINAPI* MAGSETWINDOWFILTERLIST)(HWND, DWORD, int, HWND*);
MAGSETWINDOWFILTERLIST MagSetWindowFilterList;
typedef BOOL(CALLBACK* MagImageScalingCallback)(HWND hwnd, void * srcdata, MAGIMAGEHEADER srcheader, void * destdata, MAGIMAGEHEADER destheader, RECT unclipped, RECT clipped, HRGN dirty);
typedef BOOL(WINAPI* MAGSETIMAGESCALINGCALLBACK)(HWND, MagImageScalingCallback);
MAGSETIMAGESCALINGCALLBACK MagSetImageScalingCallback;
/* Library DLL */
static HINSTANCE magnificationLibrary;
void UnLoadMagnificationLibrary(void);
BOOL LoadMagnificationLibrary(void);
void UnLoadMagnificationLibrary()
{
if (!magnificationLibrary) return;
FreeLibrary(magnificationLibrary);
}
BOOL LoadMagnificationLibrary()
{
if (magnificationLibrary) return TRUE;
magnificationLibrary = LoadLibrary("Magnification");
if (!magnificationLibrary) return FALSE;
MagInitialize = (MAGINITIALIZE)GetProcAddress(magnificationLibrary,"MagInitialize");
if (!MagInitialize)
{
UnLoadMagnificationLibrary();
return FALSE;
}
MagUninitialize = (MAGUNINITIALIZE)GetProcAddress(magnificationLibrary, "MagUninitialize");
if (!MagUninitialize)
{
UnLoadMagnificationLibrary();
return FALSE;
}
MagSetWindowSource = (MAGSETWINDOWSOURCE)GetProcAddress(magnificationLibrary, "MagSetWindowSource");
if (!MagSetWindowSource)
{
UnLoadMagnificationLibrary();
return FALSE;
}
MagSetWindowFilterList = (MAGSETWINDOWFILTERLIST)GetProcAddress(magnificationLibrary, "MagSetWindowFilterList");
if (!MagSetWindowFilterList)
{
UnLoadMagnificationLibrary();
return FALSE;
}
MagSetImageScalingCallback = (MAGSETIMAGESCALINGCALLBACK)GetProcAddress(magnificationLibrary, "MagSetImageScalingCallback");
if (!MagSetImageScalingCallback)
{
UnLoadMagnificationLibrary();
return FALSE;
}
return TRUE;
}
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