The default pixel format for transparent image assets.


This property can be used to choose a default pixel format for the transparent image assets.

Note: This property must be set in BoardDefaults.qmlprojectconfig. See the Qt Quick Ultralite Platform Porting Guide for more information.


This property is accepted in BoardDefaults.qmlprojectconfig for the target platform. It takes a string, and the default value is "ARGB8888".

The available options are:

  • "ARGB8888"
  • "ARGB4444"
  • "Alpha8"

Code example:

MCU.Config {
    platformAlphaPixelFormat: "ARGB8888"


This property was introduced in QmlProject API 1.3 .

See also Qt Quick Ultralite Platform Porting Guide and QUL_PLATFORM_DEFAULT_RESOURCE_PIXEL_FORMAT_ALPHA.

Available under certain Qt licenses.
Find out more.