wxImageList

wxImageList

wxImageList
Functions for wxImageList class

A wxImageList contains a list of images, which are stored in an unspecified form. Images can have masks for transparent drawing, and can be made from a variety of sources including bitmaps and icons.

wxImageList is used principally in conjunction with wxTreeCtrl and wxListCtrl classes.

See: wxTreeCtrl, wxListCtrl

wxWidgets docs: wxImageList

Types

Width = Height = integer()
Option = {mask, boolean()} | {initialCount, integer()}

Constructor specifying the image size, whether image masks should be created, and the initial size of the list.

See: create/4

Adds a new image using an icon.

Return: The new zero-based image index.

Remark: The original bitmap or icon is not affected by the add/3 operation, and can be deleted afterwards. If the bitmap is wider than the images in the list, then the bitmap will automatically be split into smaller images, each matching the dimensions of the image list. This does not apply when adding icons.

Only for:wxmsw,wxosx

Types

MaskColour = wx:wx_colour()

Adds a new image or images using a bitmap and mask colour.

Return: The new zero-based image index.

Remark: The original bitmap or icon is not affected by the add/3 operation, and can be deleted afterwards. If the bitmap is wider than the images in the list, then the bitmap will automatically be split into smaller images, each matching the dimensions of the image list. This does not apply when adding icons.

Types

Result =
    {Res :: boolean(), Width :: integer(), Height :: integer()}
Index = integer()

Retrieves the size of the images in the list.

Currently, the index parameter is ignored as all images in the list have the same size.

Return: true if the function succeeded, false if it failed (for example, if the image list was not yet initialized).

Replaces the existing image with the new image.

Return: true if the replacement was successful, false otherwise.

Remark: The original bitmap or icon is not affected by the replace/4 operation, and can be deleted afterwards.

Only for:wxmsw,wxosx

Types

Index = integer()
Bitmap = Mask = wxBitmap:wxBitmap()

Replaces the existing image with the new image.

Windows only.

Return: true if the replacement was successful, false otherwise.

Remark: The original bitmap or icon is not affected by the replace/4 operation, and can be deleted afterwards.