cairoPatternCreateRgba {RGtk2} | R Documentation |
Creates a new cairo_pattern_t corresponding to a translucent color. The color components are floating point numbers in the range 0 to 1. If the values passed in are outside that range, they will be clamped.
cairoPatternCreateRgba(red, green, blue, alpha)
|
[numeric] red component of the color |
|
[numeric] green component of the color |
|
[numeric] blue component of the color |
|
[numeric] alpha component of the color |
[CairoPattern
] the newly created CairoPattern
if succesful, or
an error pattern in case of no memory. The caller owns the
returned object and should call cairo\Pattern\Destroy()
when
finished with it.
This function will always return a valid pointer, but if an error
occurred the pattern status will be set to an error. To inspect
the status of a pattern use cairoPatternStatus
.
Derived by RGtkGen from GTK+ documentation