ToolStripItem::ImageTransparentColor Property

 

Gets or sets the color to treat as transparent in a ToolStripItem image.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public:
property Color ImageTransparentColor {
	Color get();
	void set(Color value);
}

Property Value

Type: System.Drawing::Color

One of the Color values.

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.

    ToolStripButton^ imageButton;

    void InitializeImageButtonWithToolTip()
    {

        // Construct the button and set the image-related properties.
        imageButton = gcnew ToolStripButton;
        imageButton->Image = 
            gcnew Bitmap(Timer::typeid,"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);
    }


    //   internal:

.NET Framework
Available since 2.0
Return to top
Show: