DIPROPDWORD Structure
typedef struct DIPROPDWORD { DIPROPHEADER diph; DWORD dwData; } DIPROPDWORD, *LPDIPROPDWORD;
Members
- diph
- DIPROPHEADER structure.
- dwData
- Property-specific value being set or retrieved.
The diph member must be initialized as follows:
| Member | Value |
|---|---|
| dwSize | sizeof(DIPROPDWORD) |
| dwHeaderSize | sizeof(DIPROPHEADER) |
| dwObj | If the dwHow member is DIPH_DEVICE, this member must be 0. If the dwHow member is DIPH_BYID, this member must be the identifier for the object whose property setting is to be set or retrieved. If the dwHow member is DIPH_BYOFFSET, this member must be a data format offset for the object whose property setting is to be set or retrieved. For example, if the c_dfDIMouse data format is selected, it must be one of the DIMOFS_* values. If the dwHow member is DIPH_BYUSAGE, the device must be a Human Interface Device (human interface device). The device object will be identified by the HID usage page and usage values in packed form. |
| dwHow | Specifies how the dwObj member should be interpreted. See the preceding description of the dwObj member for details. |