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  • Background image of a Chart control
  • Limits
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Stored procedures
The Property ModeTransparence allows to know and modify the transparency mode of an Image.
Remark: The transparency mode is defined in the editor via the "Transparency" option found in the description window of controls.
Example
// Modify the transparency mode of the image found in the "IMG_CarImage" control
IMG_ImageCar.modeTransparency Mode = trsImage
Syntax

Finding out the current transparency mode Hide the details

<Current Transparency> = <Control used>.TransparencyMode
<Current Transparency>: Integer constant
Current transparency mode of the image:
trsTopLeftCornerThe points with the same color as the one of the top left point of the image will be transparent.
trsImage The image transparency is kept.
trsMagentaThe magenta color found in the image will be transparent during the display.
<Control used>: Control name
Name of control to use:
  • Image control.
  • WINDEV Image column.
  • WINDEV Background of a Chart control.
  • WEBDEV - Server code Thumbnail control.
  • WEBDEV - Server code Clickable Image control.

Modifying the transparency mode Hide the details

<Control used>.TransparencyMode = <New mode>
<Control used>: Control name
Name of control to use:
  • Image control.
  • WINDEV Image column.
  • WINDEV Background of a Chart control.
  • WEBDEV - Server code Thumbnail control.
  • WEBDEV - Server code Clickable Image control.
<New mode>: Integer constant
New transparency mode of the image:
trsTopLeftCornerThe points with the same color as the one of the top left point of image will be transparent.
trsImage The image transparency is kept.
trsMagentaThe magenta color found in the image will be transparent during the display.
Remarks

Background image of a Chart control

When modifying the transparency mode of background image found in a Chart control, the chart display must be refreshed (by grDraw for example) in order for the change of transparency mode to appear.

Limits

The Property TransparencyMode only applies to the following fields:
  • Image control.
  • WINDEV Image column.
  • WINDEV Background of a Chart control.
  • WEBDEV - Server code Thumbnail control.
  • WEBDEV - Server code Clickable Image control.
See also
Minimum version required
  • Version 21
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