maskPixmapID
Type
property
Summary
Specifies the window ID of the X11 pixmap used to mask an image.
Syntax
set the maskPixmapID of <image> to {empty | <windowID>}
Description
Use the maskPixmapID property to pass to an external that needs to manipulate the image mask.
The maskPixmapID is provided by the operating system and indicates the pixmap used to mask an image. The mask is a 1-bit image map. Pixels in the image that correspond to a value of zero in the mask are transparent to mouse clicks, and pixels corresponding to a value of 1 can receive mouse clicks. If the maskPixmapID is empty, all the pixels in the image can receive mouse clicks (as though the mask consisted of all 1s).
This property is not supported on Mac OS and Windows systems.
Examples
set the maskPixmapID of image ID 4500 to empty
Value
| Name | Type | Description |
|---|---|---|
value | The maskPixmapID of a stack is an integer. By default, the maskPixmapID of newly created images is empty. |
Related
function: value
glossary: property, pixmap, external, mask
property: pixels, imagePixmapID
Compatibility and Support
Introduced
LiveCode 1.0
OS
linux
Platforms
desktop
server