(转)GDI实现桌面歌词效果
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admin
at 2017-11-18 • 0人收藏 • 1568人看过
import win.ui; /*DSG{{*/ var winform = win.form(text="歌词效果演示";right=339;bottom=141;border="none";exmode="toolwindow";mode="popup") winform.add() /*}}*/ import gdip; drawAlphaText =function( strText,fontsize= 35,fontname="Verdana" ){ gdi.layeredBuffer( winform.hwnd, function( hdc,hMemDc,hMemBitmap,width,height ){ //图形对象graphics(可以看作是画板) var graphics = gdip.graphics(hMemDc) //加上抗锯齿功能 graphics.smoothingMode = 4/*_GdipSmoothingModeAntiAlias*/; //创建画笔,画笔pen只能画一个轮廓(画线) var pen = gdip.pen(0xFF222222, 2,2/*_GdipUnitPixel*/ ); //创建渐变刷子 var brush = gdip.lineBrush( ::POINTF(10,10)/*渐变起始坐标*/, ::POINTF(100,100) /*渐变终止坐标*/ , 0xFFFFFF00/*起始颜色*/, 0xFF00FFFF/*结束颜色*/ ) //创建FontFamily var family = gdip.family( fontname ); //创建stringFormat var strformat = gdip.stringformat(); //设置样式 strformat.align =1/*_GdipStringAlignmentCenter*/; //注意GDI+里使用RECTF而不是RECT,这里的F后缀表示参数为float浮点数 var rclayout = ::RECTF( , ,width,height);//设置文字区域, var path = gdip.path( 0/*_GdipFillModeAlternate*/ ); //创建一个文字路径 //添加文字到上面创建的路径中 path.addstring(strText, family,1/*_GdipFontStyleBold*/, fontsize, rclayout, strformat); graphics.fillPath( brush, path) //fillPath填充路径 graphics.drawPath( pen, path) //drawPath描边 //删除所有GDI+对象 brush.delete(); pen.delete(); strformat.delete(); family.delete(); path.delete(); graphics.delete(); // 用这个GDI 画好的DC代替窗体原来的图形 gdi.updateLayeredWindow( winform.hwnd,hMemDc,::SIZE(width,height) ,gdi.blendFunction(130/*透明度*/) ); } ) } winform.transparent(true); var cx,cy = win.getScreen(); winform.setPos(60,(cy-90)/2,cx - 120,90) drawAlphaText("aardio",55/*大小*/ ) winform.show(true) import win.ui.menu; winform.popmenu = win.ui.popmenu(winform);//创建弹出菜单 winform.popmenu.add('退出',function(id){ winform.close() }) winform.wndproc = function(hwnd,message,wParam,lParam){ select(message) { case 0x201/*_WM_LBUTTONDOWN 鼠标按下*/{ winform.hitCaption() } case 0x204/*_WM_RBUTTONDOWN*/{ winform.popmenu.popup( win.getMessagePos(lParam) );//弹出菜单 } } } win.loopMessage();
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