Window Data Types (Compact 2013)
3/28/2014
The data types supported by Windows Embedded Compact are used to define function return values, function and message parameters, and structure members. They define the size and meaning of these elements.
The following table contains the following types: character, integer, Boolean, pointer, and handle. The character, integer, and Boolean types are common to most C compilers. Most of the pointer-type names begin with a prefix of P or LP. Handles refer to a resource that has been loaded into memory.
Data Type |
Description |
|---|---|
ATOM |
Atom. |
BOOL |
Boolean variable (should be TRUE or FALSE). |
BOOLEAN |
Boolean variable (should be TRUE or FALSE). |
BYTE |
Byte (8 bits). |
CALLBACK |
Calling convention for callback functions. |
CHAR |
8-bit Windows (ANSI) character. |
COLORREF |
Red, green, blue (RGB) color value (32 bits). For more information, see COLORREF. |
CONST |
Variable whose value is to remain constant during execution. |
CRITICAL_SECTION |
Critical-section object. |
DWORD |
32-bit unsigned integer. |
DWORD_PTR |
Unsigned long type for pointer precision. Use when casting a pointer to a long type to perform pointer arithmetic. |
DWORD32 |
32-bit unsigned integer. |
DWORD64 |
64-bit unsigned integer. |
FLOAT |
Floating-point variable. |
HACCEL |
Handle to an accelerator table. |
HANDLE |
Handle to an object. |
HBITMAP |
Handle to a bitmap. |
HBRUSH |
Handle to a brush. |
HCONV |
Not supported. |
HCONVLIST |
Not supported. |
HCURSOR |
Handle to a cursor. |
HDC |
Handle to a device context (DC). |
HDDEDATA |
Not supported. |
HDESK |
Not supported. |
HDROP |
Handle to an internal drop structure. |
HDWP |
Handle to a deferred window position structure. |
HENHMETAFILE |
Not supported. |
HFILE |
Handle to a file opened by OpenFile, not CreateFile. |
HFONT |
Handle to a font. |
HGDIOBJ |
Handle to a GDI object. |
HGLOBAL |
Handle to a global memory block. |
HHOOK |
Handle to a hook. |
HICON |
Handle to an icon. |
HIMAGELIST |
Handle to an image list. |
HIMC |
Handle to input context. |
HINSTANCE |
Handle to an instance. |
HKEY |
Handle to a registry key. |
HKL |
Input locale identifier. |
HLOCAL |
Handle to a local memory block. |
HMENU |
Handle to a menu. |
HMETAFILE |
Not supported. |
HMODULE |
Handle to a module. The value is the base address of the module. |
HMONITOR |
Handle to a display monitor. |
HPALETTE |
Handle to a palette. |
HPEN |
Handle to a pen. |
HRGN |
Handle to a region. |
HRSRC |
Handle to a resource. |
HSZ |
Handle to a DDE string. |
HWINSTA |
Handle to a window station. |
HWND |
Handle to a window. |
INT |
32-bit signed integer. |
INT_PTR |
Signed integral type for pointer precision. Use when casting a pointer to an integer to perform pointer arithmetic. |
INT32 |
32-bit signed integer. |
INT64 |
64-bit signed integer. |
LANGID |
Language identifier. For more information, see Locale Identifiers. |
LCID |
Locale identifier. For more information, see Locale Identifiers. |
LCTYPE |
Locale information type. For more information, see LCTYPE Constants. |
LONG |
32-bit signed integer. |
LONG_PTR |
Signed long type for pointer precision. Use when casting a pointer to a long to perform pointer arithmetic. |
LONG32 |
32-bit signed integer. |
LONG64 |
64-bit signed integer. |
LONGLONG |
64-bit signed integer. |
LPARAM |
Message parameter. |
LPBOOL |
Pointer to a BOOL. |
LPBYTE |
Pointer to a BYTE. |
LPCOLORREF |
Pointer to a COLORREF value. |
LPCRITICAL_SECTION |
Pointer to a CRITICAL_SECTION. |
LPCSTR |
Pointer to a constant null-terminated string of 8-bit Windows (ANSI) characters. |
LPCTSTR |
An LPCWSTR because Windows Embedded Compact only uses Unicode. |
LPCVOID |
Pointer to a constant of any type. |
LPCWSTR |
Pointer to a constant null-terminated string of 16-bit Unicode characters. |
LPDWORD |
Pointer to a DWORD. |
LPHANDLE |
Pointer to a HANDLE. |
LPINT |
Pointer to an INT. |
LPLONG |
Pointer to a LONG. |
LPSTR |
Pointer to a null-terminated string of 8-bit Windows (ANSI) characters. |
LPTSTR |
An LPWSTR because Windows Embedded Compact only uses Unicode. |
LPVOID |
Pointer to any type. |
LPWORD |
Pointer to a WORD. |
LPWSTR |
Pointer to a null-terminated string of 16-bit Unicode characters. |
LRESULT |
Signed result of message processing. |
LUID |
Locally unique identifier. |
PBOOL |
Pointer to a BOOL. |
PBOOLEAN |
Pointer to a BOOL. |
PBYTE |
Pointer to a BYTE. |
PCHAR |
Pointer to a CHAR. |
PCRITICAL_SECTION |
Pointer to a CRITICAL_SECTION. |
PCSTR |
Pointer to a constant null-terminated string of 8-bit Windows (ANSI) characters. |
PCTSTR |
A PCWSTR because Windows Embedded Compact only uses Unicode. |
PCWCH |
Pointer to a constant WCHAR. |
PCWSTR |
Pointer to a constant null-terminated string of 16-bit Unicode characters. |
PCWSTR |
Pointer to a constant null-terminated string of 16-bit Unicode characters. |
PDWORD |
Pointer to a DWORD. |
PDWORD |
Pointer to a DWORD. |
PFLOAT |
Pointer to a FLOAT. |
PHANDLE |
Pointer to a HANDLE. |
PHKEY |
Pointer to an HKEY. |
PINT |
Pointer to an INT. |
PLCID |
Pointer to an LCID. |
PLONG |
Pointer to a LONG. |
PLUID |
Pointer to a LUID. |
POINTER_32 |
32-bit pointer. |
POINTER_64 |
64-bit pointer. This is a sign-extended 32-bit pointer. |
PSHORT |
Pointer to a SHORT. |
PSTR |
Pointer to a null-terminated string of 8-bit Windows (ANSI) characters. |
PTBYTE |
Pointer to a TBYTE. |
PTCHAR |
Pointer to a TCHAR. |
PTSTR |
A PWSTR because Windows Embedded Compact only uses Unicode. |
PUCHAR |
Pointer to a UCHAR. |
PUINT |
Pointer to a UINT. |
PULONG |
Pointer to a ULONG. |
PUSHORT |
Pointer to a USHORT. |
PVOID |
Pointer to any type. |
PWCHAR |
Pointer to a WCHAR. |
PWORD |
Pointer to a WORD. |
PWSTR |
Pointer to a null-terminated string of 16-bit Unicode characters. |
REGSAM |
Not supported. |
SC_HANDLE |
Handle to a service control manager database. |
SC_LOCK |
Handle to a service control manager database lock. |
SERVICE_STATUS_HANDLE |
Handle to a service status value. |
SHORT |
Short integer (16 bits). |
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. |
SSIZE_T |
Signed SIZE_T. |
TBYTE |
A WCHAR because Windows Embedded Compact only uses Unicode. |
TCHAR |
A WCHAR because Windows Embedded Compact only uses Unicode. |
UCHAR |
Unsigned CHAR. |
UINT |
Unsigned INT. |
UINT_PTR |
Unsigned INT_PTR. |
UINT32 |
Unsigned INT32. |
UINT64 |
Unsigned INT64. |
ULONG |
Unsigned LONG. |
ULONG_PTR |
Unsigned LONG_PTR. |
ULONG32 |
Unsigned LONG32. |
ULONG64 |
Unsigned LONG64. |
ULONGLONG |
64-bit unsigned integer. |
UNSIGNED |
Unsigned attribute. |
USHORT |
Unsigned SHORT. |
VOID |
Any type. |
WCHAR |
16-bit Unicode character. |
WINAPI |
Calling convention for system functions. |
WORD |
16-bit unsigned integer. |
WPARAM |
Message parameter. |