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GoFiler Legato Script Reference
Legato v 1.4j Application v 5.22b
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Chapter Fifteen — Windows/OS Functions (continued)
Overview
The IsWindowVisible function tests a window’s visibility.
Syntax/Parameters
Syntax
boolean = IsWindowVisible ( handle hWindow );
Parameters
hWindow
A valid window handle.
Return Value
A boolean as TRUE (1) or FALSE (0). On error the function returns FALSE, use the GetLastError or IsError function to check for an error.
If the specified window, its parent window, its parent’s parent window, and so forth, have the WS_VISIBLE style, the return value is nonzero. Otherwise, the return value is zero.
Because the return value specifies whether the window has the WS_VISIBLE style, it may be nonzero even if the window is totally obscured by other window.
Remarks
The visibility state of a window is indicated by the WS_VISIBLE style bit. When WS_VISIBLE is set, the window is displayed and subsequent drawing into it is displayed as long as the window has the WS_VISIBLE style.
Any drawing to a window with the WS_VISIBLE style will not be displayed if the window is obscured by other windows or is clipped by its parent window.
Related Functions
Platform Support
Go13, Go16, GoFiler Complete, GoFiler Corporate, GoFiler, GoFiler Lite, GoXBRL
Legato IDE, Legato Basic
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