The AdjustWindowRect function calculates the required size of the window rectangle, based on the desired client-rectangle size. The window rectangle can then be passed to the CreateWindow function to create a window whose client area is the desired size.
Declare Function AdjustWindowRect Lib "user32" Alias "AdjustWindowRect" (lpRect As RECT, ByVal dwStyle As Long, ByVal bMenu As Long) As Long
|Operating Systems Supported|
|Requires Windows NT 3.1 or later; Requires Windows 95 or later|
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.
Specifies the window styles of the window whose required size is to be calculated.
Specifies whether the window has a menu.
|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.