Taskbar Display Options

The taskbar supports two display options: Auto hide and Always on top. To set these options, open the taskbar shortcut menu, click Properties, and select or clear the Auto hide check box or the Always on top check box. To retrieve the state of these display options, use the ABM_GETSTATE message. If you would like to be notified when the state of these display options changes, process the ABN_STATECHANGE notification message in your window procedure.

The work area is the portion of the screen not obscured by the taskbar. To retrieve the size of the work area, call the SystemParametersInfo function with SPI_GETWORKAREA. To retrieve the rectangle coordinates that describe the location of the taskbar, use the ABM_GETTASKBARPOS message.

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