C# homemade QQ source form, scalable at the top of the screen, drag it to the top of the screen, it will automatically hide the top edge of the screen when the mouse is put up, it will automatically stretch it out, and QQ The main window is the same effect

QQfrm\QQFrm\Form1.cs
.....\.....\Form1.Designer.cs
.....\.....\Form1.resx
.....\.....\Image\01.BMP
.....\.....\.....\02.BMP
.....\.....\.....\1.bmp
.....\.....\.....\2.bmp
.....\.....\.....\Close.bmp
.....\.....\Program.cs
.....\.....\...perties\AssemblyInfo.cs
.....\.....\..........\Resources.Designer.cs
.....\.....\..........\Resources.resx
.....\.....\..........\Settings.Designer.cs
.....\.....\..........\Settings.settings
.....\.....\QQFrm.csproj
.....\QQFrm.sln
.....\QQFrm.suo
.....\.....\Image
.....\.....\Properties
.....\QQFrm
QQfrm

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