typedef.go

// Copyright 2010-2012 The W32 Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package w32

import (
	"syscall"
	"unsafe"
)

// From MSDN: Windows Data Types
// http://msdn.microsoft.com/en-us/library/s3f49ktz.aspx
// http://msdn.microsoft.com/en-us/library/windows/desktop/aa383751.aspx
// ATOM                  WORD
// BOOL                  int32
// BOOLEAN               byte
// BYTE                  byte
// CCHAR                 int8
// CHAR                  int8
// COLORREF              DWORD
// DWORD                 uint32
// DWORDLONG             ULONGLONG
// DWORD_PTR             ULONG_PTR
// DWORD32               uint32
// DWORD64               uint64
// FLOAT                 float32
// HACCEL                HANDLE
// HALF_PTR              struct{} // ???
// HANDLE                PVOID
// HBITMAP               HANDLE
// HBRUSH                HANDLE
// HCOLORSPACE           HANDLE
// HCONV                 HANDLE
// HCONVLIST             HANDLE
// HCURSOR               HANDLE
// HDC                   HANDLE
// HDDEDATA              HANDLE
// HDESK                 HANDLE
// HDROP                 HANDLE
// HDWP                  HANDLE
// HENHMETAFILE          HANDLE
// HFILE                 HANDLE
// HFONT                 HANDLE
// HGDIOBJ               HANDLE
// HGLOBAL               HANDLE
// HHOOK                 HANDLE
// HICON                 HANDLE
// HINSTANCE             HANDLE
// HKEY                  HANDLE
// HKL                   HANDLE
// HLOCAL                HANDLE
// HMENU                 HANDLE
// HMETAFILE             HANDLE
// HMODULE               HANDLE
// HPALETTE              HANDLE
// HPEN                  HANDLE
// HRESULT               int32
// HRGN                  HANDLE
// HSZ                   HANDLE
// HWINSTA               HANDLE
// HWND                  HANDLE
// INT                   int32
// INT_PTR               uintptr
// INT8                  int8
// INT16                 int16
// INT32                 int32
// INT64                 int64
// LANGID                WORD
// LCID                  DWORD
// LCTYPE                DWORD
// LGRPID                DWORD
// LONG                  int32
// LONGLONG              int64
// LONG_PTR              uintptr
// LONG32                int32
// LONG64                int64
// LPARAM                LONG_PTR
// LPBOOL                *BOOL
// LPBYTE                *BYTE
// LPCOLORREF            *COLORREF
// LPCSTR                *int8
// LPCTSTR               LPCWSTR
// LPCVOID               unsafe.Pointer
// LPCWSTR               *WCHAR
// LPDWORD               *DWORD
// LPHANDLE              *HANDLE
// LPINT                 *INT
// LPLONG                *LONG
// LPSTR                 *CHAR
// LPTSTR                LPWSTR
// LPVOID                unsafe.Pointer
// LPWORD                *WORD
// LPWSTR                *WCHAR
// LRESULT               LONG_PTR
// PBOOL                 *BOOL
// PBOOLEAN              *BOOLEAN
// PBYTE                 *BYTE
// PCHAR                 *CHAR
// PCSTR                 *CHAR
// PCTSTR                PCWSTR
// PCWSTR                *WCHAR
// PDWORD                *DWORD
// PDWORDLONG            *DWORDLONG
// PDWORD_PTR            *DWORD_PTR
// PDWORD32              *DWORD32
// PDWORD64              *DWORD64
// PFLOAT                *FLOAT
// PHALF_PTR             *HALF_PTR
// PHANDLE               *HANDLE
// PHKEY                 *HKEY
// PINT_PTR              *INT_PTR
// PINT8                 *INT8
// PINT16                *INT16
// PINT32                *INT32
// PINT64                *INT64
// PLCID                 *LCID
// PLONG                 *LONG
// PLONGLONG             *LONGLONG
// PLONG_PTR             *LONG_PTR
// PLONG32               *LONG32
// PLONG64               *LONG64
// POINTER_32            struct{} // ???
// POINTER_64            struct{} // ???
// POINTER_SIGNED        uintptr
// POINTER_UNSIGNED      uintptr
// PSHORT                *SHORT
// PSIZE_T               *SIZE_T
// PSSIZE_T              *SSIZE_T
// PSTR                  *CHAR
// PTBYTE                *TBYTE
// PTCHAR                *TCHAR
// PTSTR                 PWSTR
// PUCHAR                *UCHAR
// PUHALF_PTR            *UHALF_PTR
// PUINT                 *UINT
// PUINT_PTR             *UINT_PTR
// PUINT8                *UINT8
// PUINT16               *UINT16
// PUINT32               *UINT32
// PUINT64               *UINT64
// PULONG                *ULONG
// PULONGLONG            *ULONGLONG
// PULONG_PTR            *ULONG_PTR
// PULONG32              *ULONG32
// PULONG64              *ULONG64
// PUSHORT               *USHORT
// PVOID                 unsafe.Pointer
// PWCHAR                *WCHAR
// PWORD                 *WORD
// PWSTR                 *WCHAR
// QWORD                 uint64
// SC_HANDLE             HANDLE
// SC_LOCK               LPVOID
// SERVICE_STATUS_HANDLE HANDLE
// SHORT                 int16
// SIZE_T                ULONG_PTR
// SSIZE_T               LONG_PTR
// TBYTE                 WCHAR
// TCHAR                 WCHAR
// UCHAR                 uint8
// UHALF_PTR             struct{} // ???
// UINT                  uint32
// UINT_PTR              uintptr
// UINT8                 uint8
// UINT16                uint16
// UINT32                uint32
// UINT64                uint64
// ULONG                 uint32
// ULONGLONG             uint64
// ULONG_PTR             uintptr
// ULONG32               uint32
// ULONG64               uint64
// USHORT                uint16
// USN                   LONGLONG
// WCHAR                 uint16
// WORD                  uint16
// WPARAM                UINT_PTR
type (
	ATOM            uint16
	BOOL            int32
	COLORREF        uint32
	DWM_FRAME_COUNT uint64
	DWORD           uint32
	HACCEL          HANDLE
	HANDLE          uintptr
	HBITMAP         HANDLE
	HBRUSH          HANDLE
	HCURSOR         HANDLE
	HDC             HANDLE
	HDROP           HANDLE
	HDWP            HANDLE
	HENHMETAFILE    HANDLE
	HFONT           HANDLE
	HGDIOBJ         HANDLE
	HGLOBAL         HANDLE
	HGLRC           HANDLE
	HHOOK           HANDLE
	HICON           HANDLE
	HIMAGELIST      HANDLE
	HINSTANCE       HANDLE
	HKEY            HANDLE
	HKL             HANDLE
	HMENU           HANDLE
	HMODULE         HANDLE
	HMONITOR        HANDLE
	HPEN            HANDLE
	HRESULT         int32
	HRGN            HANDLE
	HRSRC           HANDLE
	HTHUMBNAIL      HANDLE
	HWND            HANDLE
	LPARAM          uintptr
	LPCVOID         unsafe.Pointer
	LRESULT         uintptr
	PVOID           unsafe.Pointer
	QPC_TIME        uint64
	ULONG_PTR       uintptr
	WPARAM          uintptr
	TRACEHANDLE     uintptr
)

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd162805.aspx
type POINT struct {
	X, Y int32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd162897.aspx
type RECT struct {
	Left, Top, Right, Bottom int32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms633577.aspx
type WNDCLASSEX struct {
	Size       uint32
	Style      uint32
	WndProc    uintptr
	ClsExtra   int32
	WndExtra   int32
	Instance   HINSTANCE
	Icon       HICON
	Cursor     HCURSOR
	Background HBRUSH
	MenuName   *uint16
	ClassName  *uint16
	IconSm     HICON
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms644958.aspx
type MSG struct {
	Hwnd    HWND
	Message uint32
	WParam  uintptr
	LParam  uintptr
	Time    uint32
	Pt      POINT
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd145037.aspx
type LOGFONT struct {
	Height         int32
	Width          int32
	Escapement     int32
	Orientation    int32
	Weight         int32
	Italic         byte
	Underline      byte
	StrikeOut      byte
	CharSet        byte
	OutPrecision   byte
	ClipPrecision  byte
	Quality        byte
	PitchAndFamily byte
	FaceName       [LF_FACESIZE]uint16
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms646839.aspx
type OPENFILENAME struct {
	StructSize      uint32
	Owner           HWND
	Instance        HINSTANCE
	Filter          *uint16
	CustomFilter    *uint16
	MaxCustomFilter uint32
	FilterIndex     uint32
	File            *uint16
	MaxFile         uint32
	FileTitle       *uint16
	MaxFileTitle    uint32
	InitialDir      *uint16
	Title           *uint16
	Flags           uint32
	FileOffset      uint16
	FileExtension   uint16
	DefExt          *uint16
	CustData        uintptr
	FnHook          uintptr
	TemplateName    *uint16
	PvReserved      unsafe.Pointer
	DwReserved      uint32
	FlagsEx         uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/bb773205.aspx
type BROWSEINFO struct {
	Owner        HWND
	Root         *uint16
	DisplayName  *uint16
	Title        *uint16
	Flags        uint32
	CallbackFunc uintptr
	LParam       uintptr
	Image        int32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/aa373931.aspx
type GUID struct {
	Data1 uint32
	Data2 uint16
	Data3 uint16
	Data4 [8]byte
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms221627.aspx
type VARIANT struct {
	VT         uint16 //  2
	WReserved1 uint16 //  4
	WReserved2 uint16 //  6
	WReserved3 uint16 //  8
	Val        int64  // 16
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms221416.aspx
type DISPPARAMS struct {
	Rgvarg            uintptr
	RgdispidNamedArgs uintptr
	CArgs             uint32
	CNamedArgs        uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms221133.aspx
type EXCEPINFO struct {
	WCode             uint16
	WReserved         uint16
	BstrSource        *uint16
	BstrDescription   *uint16
	BstrHelpFile      *uint16
	DwHelpContext     uint32
	PvReserved        uintptr
	PfnDeferredFillIn uintptr
	Scode             int32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd145035.aspx
type LOGBRUSH struct {
	LbStyle uint32
	LbColor COLORREF
	LbHatch uintptr
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd183565.aspx
type DEVMODE struct {
	DmDeviceName       [CCHDEVICENAME]uint16
	DmSpecVersion      uint16
	DmDriverVersion    uint16
	DmSize             uint16
	DmDriverExtra      uint16
	DmFields           uint32
	DmOrientation      int16
	DmPaperSize        int16
	DmPaperLength      int16
	DmPaperWidth       int16
	DmScale            int16
	DmCopies           int16
	DmDefaultSource    int16
	DmPrintQuality     int16
	DmColor            int16
	DmDuplex           int16
	DmYResolution      int16
	DmTTOption         int16
	DmCollate          int16
	DmFormName         [CCHFORMNAME]uint16
	DmLogPixels        uint16
	DmBitsPerPel       uint32
	DmPelsWidth        uint32
	DmPelsHeight       uint32
	DmDisplayFlags     uint32
	DmDisplayFrequency uint32
	DmICMMethod        uint32
	DmICMIntent        uint32
	DmMediaType        uint32
	DmDitherType       uint32
	DmReserved1        uint32
	DmReserved2        uint32
	DmPanningWidth     uint32
	DmPanningHeight    uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd183376.aspx
type BITMAPINFOHEADER struct {
	BiSize          uint32
	BiWidth         int32
	BiHeight        int32
	BiPlanes        uint16
	BiBitCount      uint16
	BiCompression   uint32
	BiSizeImage     uint32
	BiXPelsPerMeter int32
	BiYPelsPerMeter int32
	BiClrUsed       uint32
	BiClrImportant  uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd162938.aspx
type RGBQUAD struct {
	RgbBlue     byte
	RgbGreen    byte
	RgbRed      byte
	RgbReserved byte
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd183375.aspx
type BITMAPINFO struct {
	BmiHeader BITMAPINFOHEADER
	BmiColors *RGBQUAD
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd183371.aspx
type BITMAP struct {
	BmType       int32
	BmWidth      int32
	BmHeight     int32
	BmWidthBytes int32
	BmPlanes     uint16
	BmBitsPixel  uint16
	BmBits       unsafe.Pointer
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd183567.aspx
type DIBSECTION struct {
	DsBm        BITMAP
	DsBmih      BITMAPINFOHEADER
	DsBitfields [3]uint32
	DshSection  HANDLE
	DsOffset    uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd162607.aspx
type ENHMETAHEADER struct {
	IType          uint32
	NSize          uint32
	RclBounds      RECT
	RclFrame       RECT
	DSignature     uint32
	NVersion       uint32
	NBytes         uint32
	NRecords       uint32
	NHandles       uint16
	SReserved      uint16
	NDescription   uint32
	OffDescription uint32
	NPalEntries    uint32
	SzlDevice      SIZE
	SzlMillimeters SIZE
	CbPixelFormat  uint32
	OffPixelFormat uint32
	BOpenGL        uint32
	SzlMicrometers SIZE
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd145106.aspx
type SIZE struct {
	CX, CY int32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd145132.aspx
type TEXTMETRIC struct {
	TmHeight           int32
	TmAscent           int32
	TmDescent          int32
	TmInternalLeading  int32
	TmExternalLeading  int32
	TmAveCharWidth     int32
	TmMaxCharWidth     int32
	TmWeight           int32
	TmOverhang         int32
	TmDigitizedAspectX int32
	TmDigitizedAspectY int32
	TmFirstChar        uint16
	TmLastChar         uint16
	TmDefaultChar      uint16
	TmBreakChar        uint16
	TmItalic           byte
	TmUnderlined       byte
	TmStruckOut        byte
	TmPitchAndFamily   byte
	TmCharSet          byte
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd183574.aspx
type DOCINFO struct {
	CbSize       int32
	LpszDocName  *uint16
	LpszOutput   *uint16
	LpszDatatype *uint16
	FwType       uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/bb775514.aspx
type NMHDR struct {
	HwndFrom HWND
	IdFrom   uintptr
	Code     uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/bb774743.aspx
type LVCOLUMN struct {
	Mask       uint32
	Fmt        int32
	Cx         int32
	PszText    *uint16
	CchTextMax int32
	ISubItem   int32
	IImage     int32
	IOrder     int32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/bb774760.aspx
type LVITEM struct {
	Mask       uint32
	IItem      int32
	ISubItem   int32
	State      uint32
	StateMask  uint32
	PszText    *uint16
	CchTextMax int32
	IImage     int32
	LParam     uintptr
	IIndent    int32
	IGroupId   int32
	CColumns   uint32
	PuColumns  uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/bb774754.aspx
type LVHITTESTINFO struct {
	Pt       POINT
	Flags    uint32
	IItem    int32
	ISubItem int32
	IGroup   int32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/bb774771.aspx
type NMITEMACTIVATE struct {
	Hdr       NMHDR
	IItem     int32
	ISubItem  int32
	UNewState uint32
	UOldState uint32
	UChanged  uint32
	PtAction  POINT
	LParam    uintptr
	UKeyFlags uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/bb774773.aspx
type NMLISTVIEW struct {
	Hdr       NMHDR
	IItem     int32
	ISubItem  int32
	UNewState uint32
	UOldState uint32
	UChanged  uint32
	PtAction  POINT
	LParam    uintptr
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/bb774780.aspx
type NMLVDISPINFO struct {
	Hdr  NMHDR
	Item LVITEM
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/bb775507.aspx
type INITCOMMONCONTROLSEX struct {
	DwSize uint32
	DwICC  uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/bb760256.aspx
type TOOLINFO struct {
	CbSize     uint32
	UFlags     uint32
	Hwnd       HWND
	UId        uintptr
	Rect       RECT
	Hinst      HINSTANCE
	LpszText   *uint16
	LParam     uintptr
	LpReserved unsafe.Pointer
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms645604.aspx
type TRACKMOUSEEVENT struct {
	CbSize      uint32
	DwFlags     uint32
	HwndTrack   HWND
	DwHoverTime uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms534067.aspx
type GdiplusStartupInput struct {
	GdiplusVersion           uint32
	DebugEventCallback       uintptr
	SuppressBackgroundThread BOOL
	SuppressExternalCodecs   BOOL
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms534068.aspx
type GdiplusStartupOutput struct {
	NotificationHook   uintptr
	NotificationUnhook uintptr
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd162768.aspx
type PAINTSTRUCT struct {
	Hdc         HDC
	FErase      BOOL
	RcPaint     RECT
	FRestore    BOOL
	FIncUpdate  BOOL
	RgbReserved [32]byte
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms684225.aspx
type MODULEENTRY32 struct {
	Size         uint32
	ModuleID     uint32
	ProcessID    uint32
	GlblcntUsage uint32
	ProccntUsage uint32
	ModBaseAddr  *uint8
	ModBaseSize  uint32
	HModule      HMODULE
	SzModule     [MAX_MODULE_NAME32 + 1]uint16
	SzExePath    [MAX_PATH]uint16
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms724284.aspx
type FILETIME struct {
	DwLowDateTime  uint32
	DwHighDateTime uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms682119.aspx
type COORD struct {
	X, Y int16
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms686311.aspx
type SMALL_RECT struct {
	Left, Top, Right, Bottom int16
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms682093.aspx
type CONSOLE_SCREEN_BUFFER_INFO struct {
	DwSize              COORD
	DwCursorPosition    COORD
	WAttributes         uint16
	SrWindow            SMALL_RECT
	DwMaximumWindowSize COORD
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/bb773244.aspx
type MARGINS struct {
	CxLeftWidth, CxRightWidth, CyTopHeight, CyBottomHeight int32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/aa969500.aspx
type DWM_BLURBEHIND struct {
	DwFlags                uint32
	fEnable                BOOL
	hRgnBlur               HRGN
	fTransitionOnMaximized BOOL
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/aa969501.aspx
type DWM_PRESENT_PARAMETERS struct {
	cbSize             uint32
	fQueue             BOOL
	cRefreshStart      DWM_FRAME_COUNT
	cBuffer            uint32
	fUseSourceRate     BOOL
	rateSource         UNSIGNED_RATIO
	cRefreshesPerFrame uint32
	eSampling          DWM_SOURCE_FRAME_SAMPLING
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/aa969502.aspx
type DWM_THUMBNAIL_PROPERTIES struct {
	dwFlags               uint32
	rcDestination         RECT
	rcSource              RECT
	opacity               byte
	fVisible              BOOL
	fSourceClientAreaOnly BOOL
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/aa969503.aspx
type DWM_TIMING_INFO struct {
	cbSize                 uint32
	rateRefresh            UNSIGNED_RATIO
	qpcRefreshPeriod       QPC_TIME
	rateCompose            UNSIGNED_RATIO
	qpcVBlank              QPC_TIME
	cRefresh               DWM_FRAME_COUNT
	cDXRefresh             uint32
	qpcCompose             QPC_TIME
	cFrame                 DWM_FRAME_COUNT
	cDXPresent             uint32
	cRefreshFrame          DWM_FRAME_COUNT
	cFrameSubmitted        DWM_FRAME_COUNT
	cDXPresentSubmitted    uint32
	cFrameConfirmed        DWM_FRAME_COUNT
	cDXPresentConfirmed    uint32
	cRefreshConfirmed      DWM_FRAME_COUNT
	cDXRefreshConfirmed    uint32
	cFramesLate            DWM_FRAME_COUNT
	cFramesOutstanding     uint32
	cFrameDisplayed        DWM_FRAME_COUNT
	qpcFrameDisplayed      QPC_TIME
	cRefreshFrameDisplayed DWM_FRAME_COUNT
	cFrameComplete         DWM_FRAME_COUNT
	qpcFrameComplete       QPC_TIME
	cFramePending          DWM_FRAME_COUNT
	qpcFramePending        QPC_TIME
	cFramesDisplayed       DWM_FRAME_COUNT
	cFramesComplete        DWM_FRAME_COUNT
	cFramesPending         DWM_FRAME_COUNT
	cFramesAvailable       DWM_FRAME_COUNT
	cFramesDropped         DWM_FRAME_COUNT
	cFramesMissed          DWM_FRAME_COUNT
	cRefreshNextDisplayed  DWM_FRAME_COUNT
	cRefreshNextPresented  DWM_FRAME_COUNT
	cRefreshesDisplayed    DWM_FRAME_COUNT
	cRefreshesPresented    DWM_FRAME_COUNT
	cRefreshStarted        DWM_FRAME_COUNT
	cPixelsReceived        uint64
	cPixelsDrawn           uint64
	cBuffersEmpty          DWM_FRAME_COUNT
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd389402.aspx
type MilMatrix3x2D struct {
	S_11, S_12, S_21, S_22 float64
	DX, DY                 float64
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/aa969505.aspx
type UNSIGNED_RATIO struct {
	uiNumerator   uint32
	uiDenominator uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms632603.aspx
type CREATESTRUCT struct {
	CreateParams uintptr
	Instance     HINSTANCE
	Menu         HMENU
	Parent       HWND
	Cy, Cx       int32
	Y, X         int32
	Style        int32
	Name         *uint16
	Class        *uint16
	dwExStyle    uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd145065.aspx
type MONITORINFO struct {
	CbSize    uint32
	RcMonitor RECT
	RcWork    RECT
	DwFlags   uint32
}

// NewMonitorInfo sets the cbSize of a monitor info, so it can be used for
// GetMonitorInfo.
func NewMonitorInfo() MONITORINFO {
	mi := MONITORINFO{}
	// two uint32s, two rects of four uint32s
	mi.CbSize = 4 + 4 + 16 + 16
	return mi
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd145066.aspx
type MONITORINFOEX struct {
	MONITORINFO
	SzDevice [CCHDEVICENAME]uint16
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/dd368826.aspx
type PIXELFORMATDESCRIPTOR struct {
	Size                   uint16
	Version                uint16
	DwFlags                uint32
	IPixelType             byte
	ColorBits              byte
	RedBits, RedShift      byte
	GreenBits, GreenShift  byte
	BlueBits, BlueShift    byte
	AlphaBits, AlphaShift  byte
	AccumBits              byte
	AccumRedBits           byte
	AccumGreenBits         byte
	AccumBlueBits          byte
	AccumAlphaBits         byte
	DepthBits, StencilBits byte
	AuxBuffers             byte
	ILayerType             byte
	Reserved               byte
	DwLayerMask            uint32
	DwVisibleMask          uint32
	DwDamageMask           uint32
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms646270(v=vs.85).aspx
type INPUT struct {
	Type uint32
	Mi   MOUSEINPUT
	Ki   KEYBDINPUT
	Hi   HARDWAREINPUT
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms646273(v=vs.85).aspx
type MOUSEINPUT struct {
	Dx          int32
	Dy          int32
	MouseData   uint32
	DwFlags     uint32
	Time        uint32
	DwExtraInfo uintptr
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms646271(v=vs.85).aspx
type KEYBDINPUT struct {
	WVk         uint16
	WScan       uint16
	DwFlags     uint32
	Time        uint32
	DwExtraInfo uintptr
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms646269(v=vs.85).aspx
type HARDWAREINPUT struct {
	UMsg    uint32
	WParamL uint16
	WParamH uint16
}

type KbdInput struct {
	typ uint32
	ki  KEYBDINPUT
}

type MouseInput struct {
	typ uint32
	mi  MOUSEINPUT
}

type HardwareInput struct {
	typ uint32
	hi  HARDWAREINPUT
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms724950(v=vs.85).aspx
type SYSTEMTIME struct {
	Year         uint16
	Month        uint16
	DayOfWeek    uint16
	Day          uint16
	Hour         uint16
	Minute       uint16
	Second       uint16
	Milliseconds uint16
}

// http://msdn.microsoft.com/en-us/library/windows/desktop/ms644967(v=vs.85).aspx
type KBDLLHOOKSTRUCT struct {
	VkCode      DWORD
	ScanCode    DWORD
	Flags       DWORD
	Time        DWORD
	DwExtraInfo ULONG_PTR
}

type HOOKPROC func(int, WPARAM, LPARAM) LRESULT

// https://msdn.microsoft.com/en-us/library/windows/desktop/ms633498(v=vs.85).aspx
type WNDENUMPROC func(HWND, LPARAM) LRESULT

// https://docs.microsoft.com/en-us/windows/desktop/api/wingdi/ns-wingdi-tagxform
type XFORM struct {
	EM11 float32
	EM12 float32
	EM21 float32
	EM22 float32
	EDx  float32
	EDy  float32
}

// https://docs.microsoft.com/en-us/windows/desktop/api/wingdi/ns-wingdi-_blendfunction
type BLENDFUNCTION struct {
	BlendOp             byte
	BlendFlags          byte
	SourceConstantAlpha byte
	AlphaFormat         byte
}

// https://docs.microsoft.com/en-us/windows/desktop/api/winuser/ns-winuser-windowpos
type WINDOWPOS struct {
	HWNDInsertAfter syscall.Handle
	HWND            syscall.Handle
	X               int32
	Y               int32
	Cx              int32
	Cy              int32
	Flags           uint32
}