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.

To specify an extended window style, use the AdjustWindowRectEx function.

Syntax

BOOL AdjustWindowRect(
  LPRECT lpRect,
  DWORD  dwStyle,
  BOOL   bMenu
);

Parameters

lpRect

Type: LPRECT

A 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

Type: DWORD

The window style of the window whose required size is to be calculated. Note that you cannot specify the WS_OVERLAPPED style.

bMenu

Type: BOOL

Indicates whether the window has a menu.

Return value

Type: Type: BOOL

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.

Remarks

A client rectangle is the smallest rectangle that completely encloses a client area. A window rectangle is the smallest rectangle that completely encloses the window, which includes the client area and the nonclient area.

The AdjustWindowRect function does not add extra space when a menu bar wraps to two or more rows.

The AdjustWindowRect function does not take the WS_VSCROLL or WS_HSCROLL styles into account. To account for the scroll bars, call the GetSystemMetrics function with SM_CXVSCROLL or SM_CYHSCROLL.

Requirements

   
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header winuser.h (include Windows.h)
Library User32.lib
DLL User32.dll

See also

AdjustWindowRectEx

Conceptual

CreateWindow

GetSystemMetrics

Other Resources

RECT

Reference

Windows