Worked on enhancing keyboard input handling for the xiaoyifang/goldendict-ng repository, focusing on cross-platform shortcut reliability and future maintainability. Delivered support for the Windows Win modifier in keyboard state checks, ensuring accurate shortcut detection on Windows systems. Updated the project’s Qt dependency to version 6.2 or higher, leveraging new performance optimizations and improved compatibility. Addressed a missing Win modifier issue in the keyboardstate.cc module, aligning input handling with updated Qt requirements to minimize regression risk. Utilized C++ for core development, CMake for build configuration, and the Qt framework to optimize responsiveness and maintain consistent behavior across supported platforms.