TButtonGlyph.ExternalImages property
Contains a reference to an external list of images that can be used as the Glyph image,
Declaration
property ExternalImages: TCustomImageList read FExternalImages write SetExternalImages;Description
ExternalImages is a
TCustomImageList property with the
list of images that can be displayed as a glyph for the class instance.
ExternalImages represents an image list assigned to the Images property for a
button control, like TBitBtn or TSpeedButton. The image list contains bitmaps
displayed for the various states for an associated button; i. e. Up, Pressed,
Hot, Disabled, or Selected. The image used for a given button state is
indicated in the properties: ExternalImageIndex, ExternalHotImageIndex,
ExternalDisabledImageIndex, ExternalPressedImageIndex, and
ExternalSelectedImageIndex.
Values in ExternalImages are used when a glyph bitmap has not been allocated in the Glyph property. Setting a new value for ExternalImages causes the Glyph property to be cleared, and the OnChange event handler is signalled. Conversely, setting a value for the LCLGlyphName property causes the reference in ExternalImages to be discarded.
Bitmaps in ExternalImages (or Glyph) are stored in the Images property, and used in the GetImageIndexAndEffect method to determine the image resolution and bitmap used for the glyph and the button state.
Use ExternalImageWidth to specify the Width of the images in the ExternalImages container.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.