Qt 窗口叠加透明，上面窗口可写文本和图片，下面窗口可展示图片或播放视频。目前存在一个问题，当OSD文字设置为某些颜色时，文字会消失。
资源文件列表
widgetOverlap1/built/32debug/.qmake.stash , 1169
widgetOverlap1/built/32debug/background.jpg , 85446
widgetOverlap1/built/32debug/debug/background.jpg , 85446
widgetOverlap1/built/32debug/debug/infowidget.obj , 169030
widgetOverlap1/built/32debug/debug/main.obj , 109407
widgetOverlap1/built/32debug/debug/mainwindow.obj , 167227
widgetOverlap1/built/32debug/debug/moc_infowidget.cpp , 3468
widgetOverlap1/built/32debug/debug/moc_infowidget.obj , 88259
widgetOverlap1/built/32debug/debug/moc_mainwindow.cpp , 3719
widgetOverlap1/built/32debug/debug/moc_mainwindow.obj , 111510
widgetOverlap1/built/32debug/debug/moc_osdmaneger.cpp , 5532
widgetOverlap1/built/32debug/debug/moc_osdmaneger.obj , 107426
widgetOverlap1/built/32debug/debug/moc_predefs.h , 260
widgetOverlap1/built/32debug/debug/osdmaneger.obj , 331351
widgetOverlap1/built/32debug/debug/widgetOverlap1.exe , 152064
widgetOverlap1/built/32debug/debug/widgetOverlap1.ilk , 2116696
widgetOverlap1/built/32debug/debug/widgetOverlap1.pdb , 3117056
widgetOverlap1/built/32debug/debug/widgetOverlap1.vc.pdb , 2035712
widgetOverlap1/built/32debug/Makefile , 30725
widgetOverlap1/built/32debug/Makefile.Debug , 82405
widgetOverlap1/built/32debug/Makefile.Release , 82449
widgetOverlap1/infowidget.cpp , 3286
widgetOverlap1/infowidget.h , 1213
widgetOverlap1/main.cpp , 287
widgetOverlap1/mainwindow.cpp , 1862
widgetOverlap1/mainwindow.h , 535
widgetOverlap1/mytype.h , 282
widgetOverlap1/osdmaneger.cpp , 8713
widgetOverlap1/osdmaneger.h , 1376
widgetOverlap1/widgetOverlap1.pro , 1314
widgetOverlap1/widgetOverlap1.pro.user , 23993