| Term |
Description |
| ATOM |
Atom. For more information, see Atoms.
This type is declared in WinDef.h as follows:
|
| BOOL |
Boolean variable (should be TRUE or FALSE).
This type is declared in WinDef.h as follows:
|
| BOOLEAN |
Boolean variable (should be TRUE or FALSE).
This type is declared in WinNT.h as follows:
|
| BYTE |
Byte (8 bits).
This type is declared in WinDef.h as follows:
typedef unsigned char BYTE;
|
| CALLBACK |
Calling convention for callback functions.
This type is declared in WinDef.h as follows:
#define CALLBACK __stdcall
|
| CHAR |
8-bit Windows (ANSI) character. For more information, see Character Sets Used By Fonts.
This type is declared in WinNT.h as follows:
|
| COLORREF |
Red, green, blue (RGB) color value (32 bits). See COLORREF for information on this type.
This type is declared in WinDef.h as follows:
|
| CONST |
Variable whose value is to remain constant during execution.
This type is declared in WinDef.h as follows:
|
| DWORD |
32-bit unsigned integer.
This type is declared in WinDef.h as follows:
typedef unsigned long DWORD;
|
| DWORDLONG |
64-bit unsigned integer.
This type is declared in WinNT.h as follows:
typedef ULONGLONG DWORDLONG;
|
| DWORD_PTR |
Unsigned long type for pointer precision. Use when casting a pointer to a long type to perform pointer arithmetic. (Also commonly used for general 32-bit parameters that have been extended to 64 bits in 64-bit Windows. )
This type is declared in BaseTsd.h as follows:
typedef ULONG_PTR DWORD_PTR;
|
| DWORD32 |
32-bit unsigned integer.
This type is declared in BaseTsd.h as follows:
typedef unsigned int DWORD32;
|
| DWORD64 |
64-bit unsigned integer.
This type is declared in BaseTsd.h as follows:
typedef unsigned __int64 DWORD64;
|
| FLOAT |
Floating-point variable.
This type is declared in WinDef.h as follows:
|
| HACCEL |
Handle to an accelerator table.
This type is declared in WinDef.h as follows:
|
| HALF_PTR |
Half the size of a pointer. Use within a structure that contains a pointer and two small fields.
This type is declared in Basetsd.h as follows:
#ifdef _WIN64
typedef int HALF_PTR;
#else
typedef short HALF_PTR;
#endif
|
| HANDLE |
Handle to an object.
This type is declared in WinNT.h as follows:
|
| HBITMAP |
Handle to a bitmap.
This type is declared in WinDef.h as follows:
|
| HBRUSH |
Handle to a brush.
This type is declared in WinDef.h as follows:
|
| HCOLORSPACE |
Handle to a color space.
This type is declared in WinDef.h as follows:
#if(WINVER >= 0x0400)
typedef HANDLE HCOLORSPACE;
#endif
|
| HCONV |
Handle to a dynamic data exchange (DDE) conversation.
This type is declared in Ddeml.h as follows:
|
| HCONVLIST |
Handle to a DDE conversation list.
This type is declared in Ddeml.h as follows:
typedef HANDLE HCONVLIST;
|
| HCURSOR |
Handle to a cursor.
This type is declared in WinDef.h as follows:
|
| HDC |
Handle to a device context (DC).
This type is declared in WinDef.h as follows:
|
| HDDEDATA |
Handle to DDE data.
This type is declared in Ddeml.h as follows:
|
| HDESK |
Handle to a desktop.
This type is declared in WinDef.h as follows:
|
| HDROP |
Handle to an internal drop structure.
This type is declared in ShellApi.h as follows:
|
| HDWP |
Handle to a deferred window position structure.
This type is declared in WinUser.h as follows:
|
| HENHMETAFILE |
Handle to an enhanced metafile.
This type is declared in WinDef.h as follows:
typedef HANDLE HENHMETAFILE;
|
| HFILE |
Handle to a file opened by OpenFile, not CreateFile.
This type is declared in WinDef.h as follows:
|
| HFONT |
Handle to a font.
This type is declared in WinDef.h as follows:
|
| HGDIOBJ |
Handle to a GDI object.
This type is declared in WinDef.h as follows:
|
| HGLOBAL |
Handle to a global memory block.
This type is declared in WinDef.h as follows:
|
| HHOOK |
Handle to a hook.
This type is declared in WinDef.h as follows:
|
| HICON |
Handle to an icon.
This type is declared in WinDef.h as follows:
|
| HINSTANCE |
Handle to an instance.
This type is declared in WinDef.h as follows:
typedef HANDLE HINSTANCE;
|
| HKEY |
Handle to a registry key.
This type is declared in WinDef.h as follows:
|
| HKL |
Input locale identifier.
This type is declared in WinDef.h as follows:
|
| HLOCAL |
Handle to a local memory block.
This type is declared in WinDef.h as follows:
|
| HMENU |
Handle to a menu.
This type is declared in WinDef.h as follows:
|
| HMETAFILE |
Handle to a metafile.
This type is declared in WinDef.h as follows:
typedef HANDLE HMETAFILE;
|
| HMODULE |
Handle to a module. The value is the base address of the module.
This type is declared in WinDef.h as follows:
typedef HINSTANCE HMODULE;
|
| HMONITOR |
Handle to a display monitor.
This type is declared in WinDef.h as follows:
if(WINVER >= 0x0500) typedef HANDLE HMONITOR;
|
| HPALETTE |
Handle to a palette.
This type is declared in WinDef.h as follows:
|
| HPEN |
Handle to a pen.
This type is declared in WinDef.h as follows:
|
| HRESULT |
Return code used by interfaces. It is zero upon success and nonzero to represent an error code or status information.
This type is declared in WinNT.h as follows:
|
| HRGN |
Handle to a region.
This type is declared in WinDef.h as follows:
|
| HRSRC |
Handle to a resource.
This type is declared in WinDef.h as follows:
|
| HSZ |
Handle to a DDE string.
This type is declared in Ddeml.h as follows:
|
| HWINSTA |
Handle to a window station.
This type is declared in WinDef.h as follows:
|
| HWND |
Handle to a window.
This type is declared in WinDef.h as follows:
|
| INT |
32-bit signed integer.
This type is declared in WinDef.h as follows:
|
| INT_PTR |
Signed integer type for pointer precision. Use when casting a pointer to an integer to perform pointer arithmetic.
This type is declared in BaseTsd.h as follows:
#if defined(_WIN64)
typedef __int64 INT_PTR;
#else
typedef int INT_PTR;
#endif
|
| INT32 |
32-bit signed integer.
This type is declared in BaseTsd.h as follows:
typedef signed int INT32;
|
| INT64 |
64-bit signed integer.
This type is declared in BaseTsd.h as follows:
typedef signed __int64 INT64;
|
| LANGID |
Language identifier. For more information, see Locales.
This type is declared in WinNT.h as follows:
|
| LCID |
Locale identifier. For more information, see Locales.
This type is declared in WinNT.h as follows:
|
| LCTYPE |
Locale information type. For a list, see Locale and Language Information.
This type is declared in WinNls.h as follows:
|
| LGRPID |
Language group identifier. For a list, see EnumLanguageGroupLocales.
This type is declared in WinNls.h as follows:
|
| LONG |
32-bit signed integer.
This type is declared in WinNT.h as follows:
|
| LONGLONG |
64-bit signed integer.
This type is declared in WinNT.h as follows:
#if !defined(_M_IX86)
typedef __int64 LONGLONG;
#else
typedef double LONGLONG;
#endif
|
| LONG_PTR |
Signed long type for pointer precision. Use when casting a pointer to a long to perform pointer arithmetic.
This type is declared in BaseTsd.h as follows:
#if defined(_WIN64)
typedef __int64 LONG_PTR;
#else
typedef long LONG_PTR;
#endif
|
| LONG32 |
32-bit signed integer.
This type is declared in BaseTsd.h as follows:
typedef signed int LONG32;
|
| LONG64 |
64-bit signed integer.
This type is declared in BaseTsd.h as follows:
|
| LPARAM |
Message parameter.
This type is declared in WinDef.h as follows:
|
| LPBOOL |
Pointer to a BOOL.
This type is declared in WinDef.h as follows:
typedef BOOL far *LPBOOL;
|
| LPBYTE |
Pointer to a BYTE.
This type is declared in WinDef.h as follows:
typedef BYTE far *LPBYTE;
|
| LPCOLORREF |
Pointer to a COLORREF value.
This type is declared in WinDef.h as follows:
typedef DWORD *LPCOLORREF;
|
| LPCSTR |
Pointer to a constant null-terminated string of 8-bit Windows (ANSI) characters. For more information, see Character Sets Used By Fonts.
This type is declared in WinNT.h as follows:
typedef __nullterminated CONST CHAR *LPCSTR;
|
| LPCTSTR |
An LPCWSTR if UNICODE is defined, an LPCSTR otherwise.
This type is declared in WinNT.h as follows:
#ifdef UNICODE
typedef LPCWSTR LPCTSTR;
#else
typedef LPCSTR LPCTSTR;
#endif
|
| LPCVOID |
Pointer to a constant of any type.
This type is declared in WinDef.h as follows:
typedef CONST void *LPCVOID;
|
| LPCWSTR |
Pointer to a constant null-terminated string of 16-bit Unicode characters. For more information, see Character Sets Used By Fonts.
This type is declared in WinNT.h as follows:
typedef CONST WCHAR *LPCWSTR;
|
| LPDWORD |
Pointer to a DWORD.
This type is declared in WinDef.h as follows:
|
| LPHANDLE |
Pointer to a HANDLE.
This type is declared in WinDef.h as follows:
typedef HANDLE *LPHANDLE;
|
| LPINT |
Pointer to an INT.
This type is declared in WinDef.h as follows:
|
| LPLONG |
Pointer to a LONG.
This type is declared in WinDef.h as follows:
|
| LPSTR |
Pointer to a null-terminated string of 8-bit Windows (ANSI) characters. For more information, see Character Sets Used By Fonts.
This type is declared in WinNT.h as follows:
|
| LPTSTR |
An LPWSTR if UNICODE is defined, an LPSTR otherwise.
This type is declared in WinNT.h as follows:
#ifdef UNICODE
typedef LPWSTR LPTSTR;
#else
typedef LPSTR LPTSTR;
#endif
|
| LPVOID |
Pointer to any type.
This type is declared in WinDef.h as follows:
|
| LPWORD |
Pointer to a WORD.
This type is declared in WinDef.h as follows:
|
| LPWSTR |
Pointer to a null-terminated string of 16-bit Unicode characters. For more information, see Character Sets Used By Fonts.
This type is declared in WinNT.h as follows:
|
| LRESULT |
Signed result of message processing.
This type is declared in WinDef.h as follows:
typedef LONG_PTR LRESULT;
|
| PBOOL |
Pointer to a BOOL.
This type is declared in WinDef.h as follows:
|
| PBOOLEAN |
Pointer to a BOOL.
This type is declared in WinNT.h as follows:
typedef BOOLEAN *PBOOLEAN;
|
| PBYTE |
Pointer to a BYTE.
This type is declared in WinDef.h as follows:
|
| PCHAR |
Pointer to a CHAR.
This type is declared in WinNT.h as follows:
|
| PCSTR |
Pointer to a constant null-terminated string of 8-bit Windows (ANSI) characters. For more information, see Character Sets Used By Fonts.
This type is declared in WinNT.h as follows:
typedef CONST CHAR *PCSTR;
|
| PCTSTR |
A PCWSTR if UNICODE is defined, a PCSTR otherwise.
This type is declared in WinNT.h as follows:
#ifdef UNICODE
typedef LPCWSTR PCTSTR;
#else
typedef LPCSTR PCTSTR;
#endif
|
| PCWSTR |
Pointer to a constant null-terminated string of 16-bit Unicode characters. For more information, see Character Sets Used By Fonts.
This type is declared in WinNT.h as follows:
typedef CONST WCHAR *PCWSTR;
|
| PDWORD |
Pointer to a DWORD.
This type is declared in WinDef.h as follows:
|
| PDWORDLONG |
Pointer to a DWORDLONG.
This type is declared in WinNT.h as follows:
typedef DWORDLONG *PDWORDLONG;
|
| PDWORD_PTR |
Pointer to a DWORD_PTR.
This type is declared in BaseTsd.h as follows:
typedef DWORD_PTR *PDWORD_PTR;
|
| PDWORD32 |
Pointer to a DWORD32.
This type is declared in BaseTsd.h as follows:
typedef DWORD32 *PDWORD32;
|
| PDWORD64 |
Pointer to a DWORD64.
This type is declared in BaseTsd.h as follows:
typedef DWORD64 *PDWORD64;
|
| PFLOAT |
Pointer to a FLOAT.
This type is declared in WinDef.h as follows:
|
| PHALF_PTR |
Pointer to a HALF_PTR.
This type is declared in Basetsd.h as follows:
#ifdef _WIN64
typedef HALF_PTR *PHALF_PTR;
#else
typedef HALF_PTR *PHALF_PTR;
#endif
|
| PHANDLE |
Pointer to a HANDLE.
This type is declared in WinNT.h as follows:
|
| PHKEY |
Pointer to an HKEY.
This type is declared in WinDef.h as follows:
|
| PINT |
Pointer to an INT.
This type is declared in WinDef.h as follows:
|
| PINT_PTR |
Pointer to an INT_PTR.
This type is declared in BaseTsd.h as follows:
typedef INT_PTR *PINT_PTR;
|
| PINT32 |
Pointer to an INT32.
This type is declared in BaseTsd.h as follows:
|
| PINT64 |
Pointer to an INT64.
This type is declared in BaseTsd.h as follows:
|
| PLCID |
Pointer to an LCID.
This type is declared in WinNT.h as follows:
|
| PLONG |
Pointer to a LONG.
This type is declared in WinNT.h as follows:
|
| PLONGLONG |
Pointer to a LONGLONG.
This type is declared in WinNT.h as follows:
typedef LONGLONG *PLONGLONG;
|
| PLONG_PTR |
Pointer to a LONG_PTR.
This type is declared in BaseTsd.h as follows:
typedef LONG_PTR *PLONG_PTR;
|
| PLONG32 |
Pointer to a LONG32.
This type is declared in BaseTsd.h as follows:
|
| PLONG64 |
Pointer to a LONG64.
This type is declared in BaseTsd.h as follows:
|
| POINTER_32 |
32-bit pointer. On a 32-bit system, this is a native pointer. On a 64-bit system, this is a truncated 64-bit pointer.
This type is declared in BaseTsd.h as follows:
#if defined(_WIN64)
#define POINTER_32 __ptr32
#else
#define POINTER32
#endif
|
| POINTER_64 |
64-bit pointer. On a 64-bit system, this is a native pointer. On a 32-bit system, this is a sign-extended 32-bit pointer.
Note that it is not safe to assume the state of the high pointer bit.
This type is declared in BaseTsd.h as follows:
#define POINTER_64 __ptr64
|
| PSHORT |
Pointer to a SHORT.
This type is declared in WinNT.h as follows:
|
| PSIZE_T |
Pointer to a SIZE_T.
This type is declared in BaseTsd.h as follows:
|
| PSSIZE_T |
Pointer to a SSIZE_T.
This type is declared in BaseTsd.h as follows:
typedef SSIZE_T *PSSIZE_T;
|
| PSTR |
Pointer to a null-terminated string of 8-bit Windows (ANSI) characters. For more information, see Character Sets Used By Fonts.
This type is declared in WinNT.h as follows:
|
| PTBYTE |
Pointer to a TBYTE.
This type is declared in WinNT.h as follows:
|
| PTCHAR |
Pointer to a TCHAR.
This type is declared in WinNT.h as follows:
|
| PTSTR |
A PWSTR if UNICODE is defined, a PSTR otherwise.
This type is declared in WinNT.h as follows:
#ifdef UNICODE
typedef LPWSTR PTSTR;
#else typedef LPSTR PTSTR;
#endif
|
| PUCHAR |
Pointer to a UCHAR.
This type is declared in WinDef.h as follows:
|
| PUHALF_PTR |
Pointer to a UHALF_PTR.
This type is declared in Basetsd.h as follows:
#ifdef _WIN64
typedef UHALF_PTR *PUHALF_PTR;
#else
typedef UHALF_PTR *PUHALF_PTR;
#endif
|
| PUINT |
Pointer to a UINT.
This type is declared in WinDef.h as follows:
|
| PUINT_PTR |
Pointer to a UINT_PTR.
This type is declared in BaseTsd.h as follows:
typedef UINT_PTR *PUINT_PTR;
|
| PUINT32 |
Pointer to a UINT32.
This type is declared in BaseTsd.h as follows:
|
| PUINT64 |
Pointer to a UINT64.
This type is declared in BaseTsd.h as follows:
|
| PULONG |
Pointer to a ULONG.
This type is declared in WinDef.h as follows:
|
| PULONGLONG |
Pointer to a ULONGLONG.
This type is declared in WinDef.h as follows:
typedef ULONGLONG *PULONGLONG;
|
| PULONG_PTR |
Pointer to a ULONG_PTR.
This type is declared in BaseTsd.h as follows:
typedef ULONG_PTR *PULONG_PTR;
|
| PULONG32 |
Pointer to a ULONG32.
This type is declared in BaseTsd.h as follows:
typedef ULONG32 *PULONG32;
|
| PULONG64 |
Pointer to a ULONG64.
This type is declared in BaseTsd.h as follows:
typedef ULONG64 *PULONG64;
|
| PUSHORT |
Pointer to a USHORT.
This type is declared in WinDef.h as follows:
|
| PVOID |
Pointer to any type.
This type is declared in WinNT.h as follows:
|
| PWCHAR |
Pointer to a WCHAR.
This type is declared in WinNT.h as follows:
|
| PWORD |
Pointer to a WORD.
This type is declared in WinDef.h as follows:
|
| PWSTR |
Pointer to a null- terminated string of 16-bit Unicode characters. For more information, see Character Sets Used By Fonts.
This type is declared in WinNT.h as follows:
|
| SC_HANDLE |
Handle to a service control manager database. For more information, see SCM Handles.
This type is declared in WinSvc.h as follows:
typedef HANDLE SC_HANDLE;
|
| SC_LOCK |
Lock to a service control manager database. For more information, see SCM Handles.
This type is declared in WinSvc.h as follows:
|
| SERVICE_STATUS_HANDLE |
Handle to a service status value. For more information, see SCM Handles.
This type is declared in WinSvc.h as follows:
typedef HANDLE SERVICE_STATUS_HANDLE;
|
| SHORT |
Short integer (16 bits).
This type is declared in WinNT.h as follows:
|
| SIZE_T |
The maximum number of bytes to which a pointer can point. Use for a count that must span the full range of a pointer.
This type is declared in BaseTsd.h as follows:
typedef ULONG_PTR SIZE_T;
|
| SSIZE_T |
Signed SIZE_T.
This type is declared in BaseTsd.h as follows:
typedef LONG_PTR SSIZE_T;
|
| TBYTE |
A WCHAR if UNICODE is defined, a CHAR otherwise.
This type is declared in WinNT.h as follows:
#ifdef UNICODE
typedef WCHAR TBYTE;
#else
typedef unsigned char TBYTE;
#endif
|
| TCHAR |
A WCHAR if UNICODE is defined, a CHAR otherwise.
This type is declared in WinNT.h as follows:
#ifdef UNICODE
typedef WCHAR TCHAR;
#else
typedef char TCHAR;
#endif
|
| UCHAR |
Unsigned CHAR.
This type is declared in WinDef.h as follows:
typedef unsigned char UCHAR;
|
| UHALF_PTR |
Unsigned HALF_PTR. Use within a structure that contains a pointer and two small fields.
This type is declared in Basetsd.h as follows:
#ifdef _WIN64
typedef unsigned int UHALF_PTR;
#else
typedef unsigned short UHALF_PTR;
#endif
|
| UINT |
Unsigned INT.
This type is declared in WinDef.h as follows:
typedef unsigned int UINT;
|
| UINT_PTR |
Unsigned INT_PTR.
This type is declared in BaseTsd.h as follows:
#if defined(_WIN64)
typedef unsigned __int64 UINT_PTR;
#else
typedef unsigned int UINT_PTR;
#endif
|
| UINT32 |
Unsigned INT32.
This type is declared in BaseTsd.h as follows:
typedef unsigned int UINT32;
|
| UINT64 |
Unsigned INT64.
This type is declared in BaseTsd.h as follows:
typedef usigned __int 64 UINT64;
|
| ULONG |
Unsigned LONG.
This type is declared in WinDef.h as follows:
typedef unsigned long ULONG;
|
| ULONGLONG |
64-bit unsigned integer.
This type is declared in WinNT.h as follows:
#if !defined(_M_IX86)
typedef unsigned __int64 ULONGLONG;
#else
typedef double ULONGLONG
#endif
|
| ULONG_PTR |
Unsigned LONG_PTR.
This type is declared in BaseTsd.h as follows:
#if defined(_WIN64)
typedef unsigned __int64 ULONG_PTR;
#else
typedef unsigned long ULONG_PTR;
#endif
|
| ULONG32 |
Unsigned LONG32.
This type is declared in BaseTsd.h as follows:
typedef unsigned int ULONG32;
|
| ULONG64 |
Unsigned LONG64.
This type is declared in BaseTsd.h as follows:
typedef unsigned __int64 ULONG64;
|
| USHORT |
Unsigned SHORT.
This type is declared in WinDef.h as follows:
typedef unsigned short USHORT;
|
| USN |
Update sequence number (USN).
This type is declared in WinNT.h as follows:
|
| VOID |
Any type.
This type is declared in WinNT.h as follows:
|
| WCHAR |
16-bit Unicode character. For more information, see Character Sets Used By Fonts.
This type is declared in WinNT.h as follows:
|
| WINAPI |
Calling convention for system functions.
This type is declared in WinDef.h as follows:
|
| WORD |
16-bit unsigned integer.
This type is declared in WinDef.h as follows:
typedef unsigned short WORD;
|
| WPARAM |
Message parameter.
This type is declared in WinDef.h as follows:
|