g.IO.KeyModsPrev=g.IO.KeyMods;// doing it here is better than in NewFrame() as we'll tolerate backend writing to KeyMods. If we want to firmly disallow it we should detect it.
// - Testing that only Alt is tested prevents Alt+Shift or AltGR from toggling menu layer.
// - AltGR is normally Alt+Ctrl but we can't reliably detect it (not all backends/systems/layout emit it as Alt+Ctrl). But even on keyboards without AltGR we don't want Alt+Ctrl to open menu anyway.
// Important: we don't assume that Alt was previously held in order to handle loss of focus when backend calls io.AddFocusEvent(false)
// Important: as before version <18314 we lacked an explicit IO event for focus gain/loss, we also compare mouse validity to detect old backends clearing mouse pos on focus loss.
// (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
ImGuiKeyDataKeysData[ImGuiKey_KeysData_SIZE];// Key state for all known keys. Use IsKeyXXX() functions to access this.
boolWantCaptureMouseUnlessPopupClose;// Alternative to WantCaptureMouse: (WantCaptureMouse == true && WantCaptureMouseUnlessPopupClose == false) when a click over void is expected to close a popup.
ImVec2MousePosPrev;// Previous mouse position (note that MouseDelta is not necessary == MousePos-MousePosPrev, in case either position is invalid)
voidSetBitRange(intn,intn2){n+=OFFSET;n2+=OFFSET;IM_ASSERT(n>=0&&n<BITCOUNT&&n2>n&&n2<=BITCOUNT);ImBitArraySetBitRange(Storage,n,n2);}// Works on range [n..n2)
ocornut
3 years ago