DEVPROPERTY structure
Describes a property for a software device.
Syntax
typedef struct _DEVPROPERTY {
DEVPROPCOMPKEY CompKey;
DEVPROPTYPE Type;
ULONG BufferSize;
PVOID Buffer;
} DEVPROPERTY, *PDEVPROPERTY;
Members
CompKey
A DEVPROPCOMPKEY structure that represents a compound key for a property.
Type
A DEVPROPTYPE value that indicates the property type. Valid DEVPROPTYPE values are constructed from base DEVPROP_TYPE_ values, which may be modified by a logical OR with DEVPROP_TYPEMOD_ values, as appropriate.
Here are possible DEVPROP_TYPE_ values:
| Value | Meaning |
|---|---|
| DEVPROP_TYPE_EMPTY 0x00000000 | Nothing, no property data |
| DEVPROP_TYPE_NULL 0x00000001 | Null property data |
| DEVPROP_TYPE_SBYTE 0x00000002 | 8-bit signed int (SBYTE) |
| DEVPROP_TYPE_BYTE 0x00000003 | 8-bit unsigned int (BYTE) |
| DEVPROP_TYPE_INT16 0x00000004 | 16-bit signed int (SHORT) |
| DEVPROP_TYPE_UINT16 0x00000005 | 16-bit unsigned int (USHORT) |
| DEVPROP_TYPE_INT32 0x00000006 | 32-bit signed int (LONG) |
| DEVPROP_TYPE_UINT32 0x00000007 | 32-bit unsigned int (ULONG) |
| DEVPROP_TYPE_INT64 0x00000008 | 64-bit signed int (LONG64) |
| DEVPROP_TYPE_UINT64 0x00000009 | 64-bit unsigned int (ULONG64) |
| DEVPROP_TYPE_FLOAT 0x0000000A | 32-bit floating-point (FLOAT) |
| DEVPROP_TYPE_DOUBLE 0x0000000B | 64-bit floating-point (DOUBLE) |
| DEVPROP_TYPE_DECIMAL 0x0000000C | 128-bit data (DECIMAL) |
| DEVPROP_TYPE_GUID 0x0000000D | 128-bit unique identifier (GUID) |
| DEVPROP_TYPE_CURRENCY 0x0000000E | 64 bit signed int currency value (CURRENCY) |
| DEVPROP_TYPE_DATE 0x0000000F | date (DATE) |
| DEVPROP_TYPE_FILETIME 0x00000010 | file time (FILETIME) |
| DEVPROP_TYPE_BOOLEAN 0x00000011 | 8-bit boolean (DEVPROP_BOOLEAN) |
| DEVPROP_TYPE_STRING 0x00000012 | Null-terminated string |
| DEVPROP_TYPE_STRING_LIST (DEVPROP_TYPE_STRING | DEVPROP_TYPEMOD_LIST) | Multi-sz string list |
| DEVPROP_TYPE_SECURITY_DESCRIPTOR 0x00000013 | Self-relative binary SECURITY_DESCRIPTOR |
| DEVPROP_TYPE_SECURITY_DESCRIPTOR_STRING 0x00000014 | Security descriptor string (SDDL format) |
| DEVPROP_TYPE_DEVPROPKEY 0x00000015 | Device property key (DEVPROPKEY) |
| DEVPROP_TYPE_DEVPROPTYPE 0x00000016 | Device property type (DEVPROPTYPE) |
| DEVPROP_TYPE_BINARY (DEVPROP_TYPE_BYTE | DEVPROP_TYPEMOD_ARRAY) | Custom binary data |
| DEVPROP_TYPE_ERROR 0x00000017 | 32-bit Win32 system error code |
| DEVPROP_TYPE_NTSTATUS 0x00000018 | 32-bit NTSTATUS code |
| DEVPROP_TYPE_STRING_INDIRECT 0x00000019 | String resource (@[path]<dllname>,-<strId>) |
Here are possible DEVPROP_TYPEMOD_ values:
| Value | Meaning |
|---|---|
| DEVPROP_TYPEMOD_ARRAY 0x00001000 | Array of fixed-sized data elements |
| DEVPROP_TYPEMOD_LIST 0x00002000 | List of variable-sized data elements |
BufferSize
The size in bytes of the property in Buffer.
Buffer
The buffer that contains the property info.
This member can be a PBYTE type if MIDL_PASS is defined:
#ifdef MIDL_PASS
[size_is(BufferSize)] PBYTE Buffer;
#else
__field_bcount_opt(BufferSize) PVOID Buffer;
#endif
Requirements
Header |
Devpropdef.h |