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Group icon resource type
Source position: groupiconresource.pp line 29
type TGroupIconResource = class(TGroupResource) end; |
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protected |
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procedure ReadResourceItemHeader; override; |
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procedure WriteHeader(); override; |
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procedure CreateSubItem; override; |
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procedure UpdateItemOwner(); override; |
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procedure ClearItemList; override; |
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procedure DeleteSubItems; override; |
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function GetSubStream(); override; |
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function GetType; override; |
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function GetName; override; |
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function ChangeDescTypeAllowed(); override; |
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function ChangeDescValueAllowed(); override; |
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public |
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constructor Create(); |
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Creates a new group icon resource |
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Group icon resource type |
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Abstract common class for group icon and group cursor classes |
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Base abstract resource class |
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TObject |
This class represents a resource of type RT_GROUP_ICON.
Resources of this type are strictly related to .ico files: typically a resource compiler creates resources of this type when it is instructed to insert an icon from an .ico file.
There is although a big difference between .ico files and icon resources: an .ico file contains an icon, which is made of several different images (for different sizes and color depth), but while a file of this type is self-contained, when it comes to resources data is scattered over several different resources: an RT_GROUP_ICON resource only contains information about the single images, which are contained each in a different resource of type RT_ICON. The single resources are pretty unuseful alone, since they only consist of raw image data: they must be accessed in the contest of the RT_GROUP_ICON resource, which provides information about them.
TGroupIconResource provides a way to handle an icon as if it was a .ico file, via ItemData property. Single icon resources are automatically created or destroyed as needed.
| Remark: | This class doesn't allow its type to be changed to anything else than RT_GROUP_ICON. Attempts to do so result in a EResourceDescChangeNotAllowedException. |
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Resource data as an ICO/CUR stream |
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Group cursor resource type |