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LockWindowUpdate

The LockWindowUpdate function disables drawing in the given window. Only one window can be locked at a time.

VB4-32,5,6
Declare Function LockWindowUpdate Lib "user32" Alias "LockWindowUpdate" (ByVal hwndLock As Long) As Long

Operating Systems Supported
Requires Windows NT 3.1 or later; Requires Windows 95 or later

Library
User32

Parameter Information
hWndLock
Specifies the window in which drawing will be disabled. If this parameter is NULL, drawing in the locked window is enabled.

Return Values
If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero, indicating that an error occurred or another window was already locked.

Examples

Related Functions

 

 


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