| **Navigation:**  [[introduction.htm|Language Reference]] > 13 - Built-in Functions >====== UNFREEZE (resume control drawing) ====== | [[unfixformat unfix a dynamic file .htm|{{btn_prev_n.gif|Previous page}}]][[introduction.htm|{{btn_home_n.gif|Return to chapter overview}}]][[unhide show hidden control .htm|{{btn_next_n.gif|Next page}}]] | | || {{newc7.jpg|NewC7.jpg}} **UNFREEZE( **//feq// , //state //**)** {{blk2blue.jpg|blk2blue.jpg}} **Returns LONG value used to pass to the corresponding UNFREEZE pairing.** | **UNFREEZE** | Resume control redrawing | | //feq// | The SIGNED field equate label representing the control that you wish to affect.. | | //state// | The LONG value returned by the last FREEZE for that control that has not been closed. | **UNFREEZE** resumes redrawing of the control of current thread's top window with passed feq previously suspended by FREEZE. The second //state// parameter is a value returned by last FREEZE for that control which has not been closed by paired **UNFREEZE**. FREEZE and **UNFREEZE** are useful in certain situations where you wish to delay a control's redraw operation. For example: ·Dynamically changing several properties of the same control, each of which can alter its visibility, (e.g. font name, size and style) ·Performing multiple search-and-replace operations on an RTF control. Calls to FREEZE can be nested. Every call must have its paired **UNFREEZE**. FREEZE and **UNFREEZE** functions must be used with accuracy; if there is no paired call to **UNFREEZE** for an executed FREEZE, the control cannot be redrawn and thus the screen can be displayed incorrectly. If a control can be redrawn after **UNFREEZE**ing (e.g., there are no other unclosed calls to FREEZE, the control is visible, etc.), the **UNFREEZE** function forces redrawing of the control. \\ **Use with Menu controls** FREEZE/**UNFREEZE** can be used for Menu controls,  but the **feq parameter** for a Menu control must use the special value **10001h**, or the EQUATE "**Freeze:MenuBar**" (defined in EQUATES.CLW). **Example:** **x1# = FREEZE (feq)** **x2# = FREEZE (feq)** **UNFREEZE (feq, x2#)** **UNFREEZE (feq, x1#)** **See also:** [[freeze suspend control redrawing .htm|FREEZE]]