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- Display modes
- Transparency
- Position, Symmetry
- Position
- Symmetry
- Programming
Display modes, transparency and symmetry of an image
An image can be displayed in a window, a window control, a report control, a page control or a block according to several display modes. These display modes produce different results: | | |
100%: Image is displayed at 100% from the top left corner of the window, control or block. |
Centered: The image is displayed at 100% and centered in the window, control or block. |
Stretched: The image is distorted to occupy all the space in the window, control or block. |
RepeatString: The image is displayed at 100% and repeated in the window, control or block to occupy all the space in the window, control or block. |
Homothetic: The image is enlarged proportionally to fit the entire window, control or block. |
Extended homothetic: The image is proportionally enlarged so that the smaller side of the image is displayed entirely in the window, control or block. |
Homothetic centered: The image is homothetic and centered in the window, control or block. |
Homothetic centered extended: The image is extended, and centered in the window, control or block. | Homothetic without growth: If Image can be displayed entirely in the window, Image control or block, it is displayed at 100%. If the image is bigger than the window, Image control or block, it is automatically reduced proportionally in order to be entirely displayed.
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In homothetic mode, image quality can be improved when the image is reduced from its original size:  "Visualización de alta calidad (HQ)" option when selecting the display mode in the "General" tab of the control description.  "Alta calidad" when selecting the display settings in the "General" tab of the control description
The "Actual preview enabled" option shows the result of the display modes on the image associated with the Image control. When displaying an image, you have the ability to define its transparency options. These options will be kept even if the image is modified programmatically ( Image property). The possible options are as follows: Caution: Using a transparent Image or Background slows window redisplay considerably (time multiplied by 3 or 4).. We advise you to: - avoid using images with a transparent background.
- for the images in GIF or PSD format, make sure that no transparency color is described in the image format (via an image processing software for example).
The images can be managed programmatically: - via the following properties:
| | | BackgroundImage | La propiedad ..BackgroundImage permite conocer y modificar la imagen de fondo de un elemento: ventana, página, control o reporte. | | BackgroundImagePrinted | La BackgroundImagePrinted se utiliza para: - Determina si el fondo Image de un reporte (formulario u otro) debe imprimirse.
- Imprimir (o no) el fondo Image de una reporte.
| | BackgroundImageState | El BackgroundImageState Property permite get y cambiar el número de dibujos de la imagen associated con el Background de un botón. | | Image | La imagen Property obtiene y establece la imagen de fondo de un control o bloque. | | ImageMode | The ImageMode property gets and sets the display mode of an image in an Image control, in the column of a table of type Image or in the background of a Chart control in a window. |
- via the following functions:
| | | WINBackgroundImage | Modifica el fondo Image de una ventana y especifica el modo de visualización de este Image. |
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