forked from unom/punktfunk
enricobuehlerandClaude Opus 4.8
0290bf7285
set_locked() hid the OS cursor with a one-shot ShowCursor(false), but the WinUI content island answers WM_SETCURSOR and re-asserts the arrow on every pointer move, so the cursor reappeared the instant the mouse moved while the pointer lock was engaged. A low-level mouse hook never sees WM_SETCURSOR, so it couldn't suppress it. Subclass the WinUI window and all its descendants (the video is a composition SwapChainPanel, so the pointer actually sits over WinUI's internal input-site child, which is the window that receives WM_SETCURSOR) and, while the lock wants the cursor hidden, answer WM_SETCURSOR ourselves with SetCursor(None) and return TRUE — halting WinUI's arrow re-assertion. ShowCursor(false) stays as the coarse first-frame hide. The subclass is removed on teardown so the reused app window (host list) is left pristine. Adds the Win32_UI_Shell feature for the subclassing APIs. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>