Difference between revisions of "QTM:GetHeadtrackingInfo"
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| Line 53: | Line 53: | ||
| 0xC | | 0xC | ||
| 0x20 | | 0x20 | ||
| − | | | + | | 4 coordinate entries: head top-left, head bottom-right, head bottom-left, and head top-right. |
|- | |- | ||
| 0x2C | | 0x2C | ||
| Line 61: | Line 61: | ||
The total size of this structure is 0x40-bytes. | The total size of this structure is 0x40-bytes. | ||
| + | |||
| + | ==Coordinate entry== | ||
| + | {| class="wikitable" border="1" | ||
| + | |- | ||
| + | ! Offset | ||
| + | ! Size | ||
| + | ! Description | ||
| + | |- | ||
| + | | 0x0 | ||
| + | | 0x4 | ||
| + | | float x | ||
| + | |- | ||
| + | | 0x4 | ||
| + | | 0x4 | ||
| + | | float y | ||
| + | |} | ||
| + | |||
| + | The total entry size is 0x8-bytes. The range for these two floats are -1.0f..1.0.f. These are relative to the center of the screen. | ||
Latest revision as of 07:25, 21 December 2014
Request[edit]
| Index Word | Description |
|---|---|
| 0 | Header code [0x00020080] |
| 1-2 | u64, normally zero |
Response[edit]
| Index Word | Description |
|---|---|
| 0 | Header code |
| 1 | Result code |
| 2..17 | Output structure |
Structure[edit]
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x4 | u8 flags which indicate whether the head was detected. |
| 0x4 | 0x1 | u8 flag, unknown |
| 0x5 | 0x3 | Padding |
| 0x8 | 0x4 | float, not used by System_Settings. |
| 0xC | 0x20 | 4 coordinate entries: head top-left, head bottom-right, head bottom-left, and head top-right. |
| 0x2C | 0x14 | Not used by System_Settings. |
The total size of this structure is 0x40-bytes.
Coordinate entry[edit]
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x4 | float x |
| 0x4 | 0x4 | float y |
The total entry size is 0x8-bytes. The range for these two floats are -1.0f..1.0.f. These are relative to the center of the screen.