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IsWindow The IsWindow function determines whether the specified window handle identifies an existing window.
VB4-32,5,6
Declare Function IsWindow Lib "user32" Alias "IsWindow" (ByVal hwnd As Long) As Long |
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Operating Systems Supported |
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Requires Windows NT 3.1 or later; Requires Windows 95 or later |
- hWnd
Specifies the window handle. |
If the window handle identifies an existing window, the return value is nonzero.
If the window handle does not identify an existing window, the return value is zero. |
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