AdjustWindowRectEx

The AdjustWindowRectEx function calculates the required size of the window rectangle, based on the desired size of the client rectangle. The window rectangle can then be passed to the CreateWindowEx function to create a window whose client area is the desired size.

Declaration Declare Function AdjustWindowRectEx Lib "user32" Alias "AdjustWindowRectEx" (lpRect As RECT, ByVal dsStyle As Long, ByVal bMenu As Long, ByVal dwEsStyle As Long) As Long
Parameters
  • lpRect
Pointer to a RECT structure that contains the coordinates of the top-left and bottom-right corners of the desired client area. When the function returns, the structure contains the coordinates of the top-left and bottom-right corners of the window to accommodate the desired client area.
  • dwStyle
Specifies the window styles of the window whose required size is to be calculated.
  • bMenu
Specifies whether the window has a menu.
  • dwExStyle
Specifies the extended style of the window whose required size is to be calculated.
Return Values If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.
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