Bitmap (PRIM_BMP)
Bitmap is an image file in the repository
Ancestors - Graphic (PRIM_FLBX)Object (PRIM_OBJT)
Details
A Bitmap component can be used to store images files in the LANSA repository.
Originally limited to just BMP files, Bitmaps can also store JPG, JPEG and PNG files.
Once enrolled, these images can be used on buttons, list items and many other places in an application.
Enrolled images are easy to deploy as part of the application and are compiled in to the DLL generated for desktop components.
PRIM_BMP is an abstract class. The Sys_Appln.CreateBitmap method can be used to create an instance at runtime.
Example
In this example an image stored in a BLOB field is used to populate the image.
#Image.FileName := #Empimg
In this example a bitmap instance is created from a file.
Define_Com Class(#Prim_bmp) Name(#Bitmap) Reference(*Dynamic)
#Bitmap <= #Sys_Appln.CreateBitmap(#FilePath)
Properties
Name | Description |
|---|---|
Number of bits per pixel | |
ComponentClassName is the name of the component's class. Inherited from Object (PRIM_OBJT) | |
ComponentMembers provides access to all the member components of this component Inherited from Object (PRIM_OBJT) | |
ComponentPatternName is used to qualify the class of the component. Inherited from Object (PRIM_OBJT) | |
Generic space allowing a value to be stored for the instance Inherited from Object (PRIM_OBJT) | |
ComponentType gives you access to the type information about the component Inherited from Object (PRIM_OBJT) | |
ComponentTypeName is the fully qualified name of the component's class. Inherited from Object (PRIM_OBJT) | |
Image Compression Type | |
FileName is used to specify an image file | |
Height of the image in pixels | |
Number of images | |
Image Format | |
True when the bitmap source file has been loaded | |
Color used to identify the background of the image | |
Name identifies the component Inherited from Object (PRIM_OBJT) | |
Owner owns this component Inherited from Object (PRIM_OBJT) | |
The component instance to which this instance is attached. The visual container for a control or the collector of a set of child instances Inherited from Object (PRIM_OBJT) | |
Use on of the standard application images | |
Use the mask color as the background | |
Width of the image in pixels |
Events
Name | Description |
|---|---|
CreateInstance is signalled when an instance of a component is created Inherited from Bitmap (PRIM_BMP) | |
DestroyInstance is signalled when an instance of a component is about to be destroyed Inherited from Bitmap (PRIM_BMP) | |
Fired if the image fails to load for any reason | |
Fired when the bitmap source has been loaded |