? are used to define function return values, function and message parameters, and structure members. They define the size and meaning of these elements. For more information about the underlying C/C++ data types, see
.
er, and handle. The character,
eger, and Boolean types are common to most C compilers. Most of the po
er-type names begin with a prefix of P or LP. Handles refer to a resource that has been loaded
o memory.
| Type | Description |
| ATOM | Atom. For more information, see Atoms.
This type is declared in WinDef.h as follows:
typedef WORD ATOM;
|
| BOOL | Boolean variable (should be TRUE or FALSE).
This type is declared in WinDef.h as follows:
typedef int BOOL;
|
| BOOLEAN | Boolean variable (should be TRUE or FALSE).
This type is declared in WinNT.h as follows:
typedef BYTE BOOLEAN;
|
| 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:
typedef char CHAR;
|
| 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:
typedef DWORD COLORREF;
|
| CONST | Variable whose value is to remain constant during execution.
This type is declared in WinDef.h as follows:
#define CONST const
|
| 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:
typedef float FLOAT;
|
| HACCEL | Handle to an accelerator table.
This type is declared in WinDef.h as follows:
typedef HANDLE HACCEL;
|
| 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:
typedef PVOID HANDLE;
|
| HBITMAP | Handle to a bitmap.
This type is declared in WinDef.h as follows:
typedef HANDLE HBITMAP;
|
| HBRUSH | Handle to a brush.
This type is declared in WinDef.h as follows:
typedef HANDLE HBRUSH;
|
| 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:
typedef HANDLE HCONV;
|
| 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:
typedef HICON HCURSOR;
|
| HDC | Handle to a device context (DC).
This type is declared in WinDef.h as follows:
typedef HANDLE HDC;
|
| HDDEDATA | Handle to DDE data.
This type is declared in Ddeml.h as follows:
typedef HANDLE HDDEDATA;
|
| HDESK | Handle to a desktop.
This type is declared in WinDef.h as follows:
typedef HANDLE HDESK;
|
| HDROP | Handle to an internal drop structure.
This type is declared in ShellApi.h as follows:
typedef HANDLE HDROP;
|
| HDWP | Handle to a deferred window position structure.
This type is declared in WinUser.h as follows:
typedef HANDLE HDWP;
|
| 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:
typedef int HFILE;
|
| HFONT | Handle to a font.
This type is declared in WinDef.h as follows:
typedef HANDLE HFONT;
|
| HGDIOBJ | Handle to a GDI object.
This type is declared in WinDef.h as follows:
typedef HANDLE HGDIOBJ;
|
| HGLOBAL | Handle to a global memory block.
This type is declared in WinDef.h as follows:
typedef HANDLE HGLOBAL;
|
| HHOOK | Handle to a hook.
This type is declared in WinDef.h as follows:
typedef HANDLE HHOOK;
|
| HICON | Handle to an icon.
This type is declared in WinDef.h as follows:
typedef HANDLE HICON;
|
| 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:
typedef HANDLE HKEY;
|
| HKL | Input locale identifier.
This type is declared in WinDef.h as follows:
typedef HANDLE HKL;
|
| HLOCAL | Handle to a local memory block.
This type is declared in WinDef.h as follows:
typedef HANDLE HLOCAL;
|
| HMENU | Handle to a menu.
This type is declared in WinDef.h as follows:
typedef HANDLE HMENU;
|
| 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:
typedef HANDLE HPALETTE;
|
| HPEN | Handle to a pen.
This type is declared in WinDef.h as follows:
typedef HANDLE HPEN;
|
| 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:
typedef LONG HRESULT;
|
| HRGN | Handle to a region.
This type is declared in WinDef.h as follows:
typedef HANDLE HRGN;
|
| HRSRC | Handle to a resource.
This type is declared in WinDef.h as follows:
typedef HANDLE HRSRC;
|
| HSZ | Handle to a DDE string.
This type is declared in Ddeml.h as follows:
typedef HANDLE HSZ;
|
| HWINSTA | Handle to a window station.
This type is declared in WinDef.h as follows:
typedef HANDLE WINSTA;
|
| HWND | Handle to a window.
This type is declared in WinDef.h as follows:
typedef HANDLE HWND;
|
| INT | 32-bit signed integer.
This type is declared in WinDef.h as follows:
typedef int INT;
|
| 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:
typedef WORD LANGID;
|
| LCID | Locale identifier. For more information, see Locales.
This type is declared in WinNT.h as follows:
typedef DWORD LCID;
|
| LCTYPE | Locale information type. For a list, see LCTYPE Constants.
This type is declared in WinNls.h as follows:
typedef DWORD LCTYPE;
|
| LGRPID | Language group identifier. For a list, see EnumLanguageGroupLocales.
This type is declared in WinNls.h as follows:
typedef DWORD LGRPID;
|
| LONG | 32-bit signed integer.
This type is declared in WinNT.h as follows:
typedef long LONG;
|
| 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:
typedef __int64 LONG64;
|
| LPARAM | Message parameter.
This type is declared in WinDef.h as follows:
typedef LONG_PTR LPARAM;
|
| 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:
typedef DWORD *LPDWORD;
|
| 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:
typedef int *LPINT;
|
| LPLONG | Pointer to a LONG.
This type is declared in WinDef.h as follows:
typedef long *LPLONG;
|
| 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:
typedef CHAR *LPSTR;
|
| 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:
typedef void *LPVOID;
|
| LPWORD | Pointer to a WORD.
This type is declared in WinDef.h as follows:
typedef WORD *LPWORD;
|
| 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:
typedef WCHAR *LPWSTR;
|
| 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:
typedef BOOL *PBOOL;
|
| 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:
typedef BYTE *PBYTE;
|
| PCHAR | Pointer to a CHAR.
This type is declared in WinNT.h as follows:
typedef CHAR *PCHAR;
|
| 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:
typedef DWORD *PDWORD;
|
| 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:
typedef FLOAT *PFLOAT;
|
| 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:
typedef HANDLE *PHANDLE;
|
| PHKEY | Pointer to an HKEY.
This type is declared in WinDef.h as follows:
typedef HKEY *PHKEY;
|
| PINT | Pointer to an INT.
This type is declared in WinDef.h as follows:
typedef int *PINT;
|
| 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:
typedef INT32 *PINT32;
|
| PINT64 | Pointer to an INT64.
This type is declared in BaseTsd.h as follows:
typedef INT64 *PINT64;
|
| PLCID | Pointer to an LCID.
This type is declared in WinNT.h as follows:
typedef PDWORD PLCID;
|
| PLONG | Pointer to a LONG.
This type is declared in WinNT.h as follows:
typedef LONG *PLONG;
|
| 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:
typedef LONG32 *PLONG32;
|
| PLONG64 | Pointer to a LONG64.
This type is declared in BaseTsd.h as follows:
typedef LONG64 *PLONG64;
|
| 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 POINTER_32 #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:
#if (_MSC_VER >= 1300) #define POINTER_64 __ptr64 #else #define POINTER_64 #endif
|
| POINTER_SIGNED | A signed pointer.
This type is declared in BaseTsd.h as follows:
#define POINTER_SIGNED __sptr
|
| POINTER_UNSIGNED | An unsigned pointer.
This type is declared in BaseTsd.h as follows:
#define POINTER_UNSIGNED __uptr
|
| PSHORT | Pointer to a SHORT.
This type is declared in WinNT.h as follows:
typedef SHORT *PSHORT;
|
| PSIZE_T | Pointer to a SIZE_T.
This type is declared in BaseTsd.h as follows:
typedef SIZE_T *PSIZE_T;
|
| 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:
typedef CHAR *PSTR;
|
| PTBYTE | Pointer to a TBYTE.
This type is declared in WinNT.h as follows:
typedef TBYTE *PTBYTE;
|
| PTCHAR | Pointer to a TCHAR.
This type is declared in WinNT.h as follows:
typedef TCHAR *PTCHAR;
|
| 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:
typedef UCHAR *PUCHAR;
|
| 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:
typedef UINT *PUINT;
|
| 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:
typedef UINT32 *PUINT32;
|
| PUINT64 | Pointer to a UINT64.
This type is declared in BaseTsd.h as follows:
typedef UINT64 *PUINT64;
|
| PULONG | Pointer to a ULONG.
This type is declared in WinDef.h as follows:
typedef ULONG *PULONG;
|
| 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:
typedef USHORT *PUSHORT;
|
| PVOID | Pointer to any type.
This type is declared in WinNT.h as follows:
typedef void *PVOID;
|
| PWCHAR | Pointer to a WCHAR.
This type is declared in WinNT.h as follows:
typedef WCHAR *PWCHAR;
|
| PWORD | Pointer to a WORD.
This type is declared in WinDef.h as follows:
typedef WORD *PWORD;
|
| 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:
typedef WCHAR *PWSTR;
|
| 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:
typedef LPVOID SC_LOCK;
|
| 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:
typedef short SHORT;
|
| 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;
|
| UNICODE_STRING | A Unicode string.
This type is declared in Winternl.h as follows:
typedef struct _UNICODE_STRING { USHORT Length; USHORT MaximumLength; PWSTR Buffer; } UNICODE_STRING; typedef UNICODE_STRING *PUNICODE_STRING; typedef const UNICODE_STRING *PCUNICODE_STRING;
|
| 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:
typedef LONGLONG USN;
|
| VOID | Any type.
This type is declared in WinNT.h as follows:
#define VOID void
|
| WCHAR | 16-bit Unicode character. For more information, see Character Sets Used By Fonts.
This type is declared in WinNT.h as follows:
typedef wchar_t WCHAR;
|
| WINAPI | Calling convention for system functions.
This type is declared in WinDef.h as follows:
#define WINAPI __stdcall
|
| 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:
typedef UINT_PTR WPARAM;
|
