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EnterReaderModeHelper function

Enables the middle mouse button to toggle the presence of a scrolling compass cursor on a scrollable window.

Syntax

LONG EnterReaderModeHelper(
    HANDLE hwnd
);

Parameters

hwnd

A handle to the window for which the scrolling compass cursor is enabled.

Return value

A value evaluating to FALSE if the passed window handle is invalid; otherwise, TRUE.

Remarks

This function is not defined in an SDK header and must be declared by the caller. This function is exported from user32.dll.

Requirements

Requirement Value
Minimum supported client Windows 10
Minimum supported server Windows 10
DLL user32.dll

See also