Popasl creates asynchronous popups. Requesters are opened in a seperately spawned task and don't disturb the rest of the application. You can ask for the state of a requester by querying the MUIA_Popasl_Active attribute. It will return TRUE when the requester is currently open, FALSE otherwise.

Common use for this attribute is to prevent an application from being terminated while a requester is open. If you try to dispose the popasl object with a currently open requester, MUI will freeze your task as long as the requester stays there.

When set to TRUE, enables the outline, glow and other effects and colors configuration in the popup requester. Defaults to FALSE

CAUTION: this is an initializer attribute, meaning it cannot be changed after the underlying MUI object is instantiated

This tag allows to set the type of asl requester. Pass the same value you would use for AllocAslRequest(), e.g. ASL_FileRequest, ASL_FontRequest or ASL_ScreenModeRequest.

For ASL_FileRequest and ASL_FontRequest, popasl class offers a a standard start/stop handling. When a file requester is opened, MUI splits the string gadgets contents into a path and a file name and uses these as initial paremeters for the requester. Font popups translate a font into a name/size pair, e.g. "topaz/8". You can override these translations by specifying a MUIA_Popasl_StartHook and a MUIA_Popasl_StopHook.

For ASL_ScreenModeRequest, no standard handling is available. Using such a popup without Start and Stop hooks won't make much sense.