PictureBox.InitialImage Property
.NET Framework 4.5
Gets or sets the image displayed in the PictureBox control when the main image is loading.
Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
If no InitialImage is specified, a default image is displayed. The InitialImage is always displayed non-stretched, in the center of the PictureBox.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.