AdjustWindowRect function (winuser.h)
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(
[in, out] LPRECT lpRect,
[in] DWORD dwStyle,
[in] BOOL bMenu
);
Parameters
[in, out] 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.
[in] 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.
[in] bMenu
Type: BOOL
Indicates whether the window has a menu.
Return value
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
| Requirement | Value |
|---|---|
| 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 |
| API set | ext-ms-win-ntuser-window-l1-1-4 (introduced in Windows 10, version 10.0.14393) |
See also
Conceptual
Other Resources
Reference