Qt之实现遮罩窗口，实现了窗口遮罩效果

[{"title":"（ 15 个子文件 241KB ） Qt之实现遮罩窗口，实现了窗口遮罩效果","children":[{"title":"QHMaskWidget","children":[{"title":"mainwindow.cpp.autosave <span style='color:#111;'> 663B </span>","children":null,"spread":false},{"title":"testwindow.cpp <span style='color:#111;'> 293B </span>","children":null,"spread":false},{"title":"testwindow.h <span style='color:#111;'> 364B </span>","children":null,"spread":false},{"title":"QHMaskWidget.qrc <span style='color:#111;'> 143B </span>","children":null,"spread":false},{"title":"icons","children":[{"title":"Luffy.gif <span style='color:#111;'> 197.66KB </span>","children":null,"spread":false},{"title":"Background.jpeg <span style='color:#111;'> 54.64KB </span>","children":null,"spread":false}],"spread":true},{"title":"QHMaskWidget.pro <span style='color:#111;'> 1.14KB </span>","children":null,"spread":false},{"title":"testwindow.ui <span style='color:#111;'> 2.60KB </span>","children":null,"spread":false},{"title":"main.cpp <span style='color:#111;'> 183B </span>","children":null,"spread":false},{"title":"mainwindow.ui <span style='color:#111;'> 6.39KB </span>","children":null,"spread":false},{"title":"mainwindow.cpp <span style='color:#111;'> 613B </span>","children":null,"spread":false},{"title":"mainwindow.h <span style='color:#111;'> 515B </span>","children":null,"spread":false},{"title":"QHMaskWidget.cpp <span style='color:#111;'> 1.27KB </span>","children":null,"spread":false},{"title":"QHMaskWidget.h <span style='color:#111;'> 365B </span>","children":null,"spread":false},{"title":"QHMaskWidget.pro.user <span style='color:#111;'> 24.40KB </span>","children":null,"spread":false}],"spread":false}],"spread":true}]