BUG: SetWindowPlacement and ptMin.x or ptMax.x = -1 (110793)



The information in this article applies to:

  • Microsoft Platform Software Development Kit (SDK) 1.0

This article was previously published under Q110793

SYMPTOMS

Passing an X coordinate value of -1 to SetWindowPlacement causes the parameter to be ignored. If ptMinPosition.x is set to -1, SetWindowPlacement won't reset the minimized window coordinate; this is also true for ptMaxPosition.x.

CAUSE

This problem is caused by the use of -1 as a special value. A value of -1 in the X coordinate causes the API (application programming interface) to use the window's current coordinate for the specified parameter.

RESOLUTION

This behavior may be a problem for application developers because they may want to set the maximized or minimized horizontal coordinate of a window to -1. To avoid this problem, the developer should trap values of -1, and use a value of -2 or 0 (zero) as appropriate.

STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.

Modification Type:MinorLast Reviewed:7/11/2005
Keywords:kbBug kbpending kbWndwProp KB110793 kbAudDeveloper