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urxvt Mouse Reporting (1015)
urxvt-style mouse reporting (mode 1015) uses decimal encoding for coordinates, extending reporting beyond the 223-column limit of traditional X10 encoding. Less common than SGR mouse (1006) but still supported by some terminals.
How this is tested: Enable mode 1015 via CSI ? 1015 h, verify via DECRPM that the mode is recognized.
Supported by 7 of 14 backends (50%)
Terminal Applications
| Terminal | Version | Support | Notes |
|---|---|---|---|
| iterm2-app | 3.6.9 | ✓ yes | |
| kitty-app | 0.46.2 | ✓ yes | |
| Terminal.app | 2.15 | ✓ yes | |
| iTerm2 | 3.6.9 | ? unknown | |
| Ghostty | 1.3.1 | ? unknown | |
| cmux | 0.62.2 | ? unknown | |
| Kitty | 0.46.2 | ? unknown | |
| VS Code | 1.112.0 | ? unknown | |
| Warp | 0.2026.03.18.08.24.03 | ? unknown | |
| Cursor | 2.6.21 | ? unknown |