ToolStripItem.ImageTransparentColor Property
.NET Framework 4.5
Gets or sets the color to treat as transparent in a ToolStripItem image.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The following code example demonstrates how to set the Image, ImageScaling, and ImageTransparentColor for a ToolStripItem. In addition, it demonstrates how to set and show a custom ToolTip for the item.
internal ToolStripButton imageButton; private void InitializeImageButtonWithToolTip() { // Construct the button and set the image-related properties. imageButton = new ToolStripButton(); imageButton.Image = new Bitmap(typeof(Timer), "Timer.bmp"); imageButton.ImageScaling = ToolStripItemImageScaling.SizeToFit; // Set the background color of the image to be transparent. imageButton.ImageTransparentColor = Color.FromArgb(0, 255, 0); // Show ToolTip text, set custom ToolTip text, and turn // off the automatic ToolTips. toolStrip1.ShowItemToolTips = true; imageButton.ToolTipText = "Click for the current time"; imageButton.AutoToolTip = false; // Add the button to the ToolStrip. toolStrip1.Items.Add(imageButton); }
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.
