DSK_BLOCKREMOVABLE
- Category
- IOCTL_DISK (08h)
- Function
- DSK_BLOCKREMOVABLE (20h)
- Description
- Block Removable
Description
This function is used to determine if the media is removable or fixed.
Parameter Packet Format
| Field | Length | C Datatype |
|---|---|---|
| Command Information | BYTE | UCHAR |
| Drive Unit | BYTE | UCHAR |
Data Packet Format
| Field | Length | C Datatype |
|---|---|---|
| Data | BYTE | UCHAR |
Returns
Possible values are shown in the following list:
| Code | Description |
|---|---|
| 0 | NO_ERROR |
| 1 | ERROR_INVALID_FUNCTION |
| 6 | ERROR_INVALID_HANDLE |
| 15 | ERROR_INVALID_DRIVE |
| 31 | ERROR_GEN_FAILURE |
| 87 | ERROR_INVALID_PARAMETER |
| 111 | ERROR_BUFFER_OVERFLOW |
| 115 | ERROR_PROTECTION_VIOLATION |
| 117 | ERROR_INVALID_CATEGORY |
| 119 | ERROR_BAD_DRIVER_LEVEL |
| 163 | ERROR_UNCERTAIN_MEDIA |
| 165 | ERROR_MONITORS_NOT_SUPPORTED |
Remarks
This function can be issued without a previously allocated file handle by using a file handle of -1 and specifying the Drive Unit (0 = A, 1 = B, 2 = C, and so forth). On return, the data byte is set to 0 for removable media or 1 for nonremovable media. Media in the drive is not required for this function.