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2.11 Hide window. <Main>
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[Name]
win_hide
[Syntax]
#include <crt.h>
int win_hide( whandle handle ) ;
[Arguments]
handle window handle for the window to be hidden
[Return]
Returns zero if successful. When failed, returns "-1" and sets
following error code to the global variable "errno".
EW_NOTOPEN specified window not exist
[Description]
Win_hide() hides specified window.
Hidden window continues to be invisible until it is shown again by
win_show() function.
Overlapping order of other windows is not changed.
Even while a window is hidden, data can be written in the window by
selecting the window by win_select().
Calling this function redraws whole screen.