// winsplp.h

typedef struct {
  UI_TYPE           UIType;
  MESSAGEBOX_PARAMS MessageBoxParams;
} SHOWUIPARAMS, *PSHOWUIPARAMS;
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Windows Driver Kit DDI reference (ns-winsplp-showuiparams)

SHOWUIPARAMS structure

Description

The SplPromptUIInUsersSession function uses the SHOWUIPARAMS structure to hold information about the appearance and behavior of a message box.

Members

`UIType`

Specifies the type of user interface element. This member can be set to a single value: kMessageBox.

`MessageBoxParams`

Specifies a MESSAGEBOX_PARAMS structure that contains the information about the message box.

SHOWUIPARAMS - NtDoc