AdjustWindowRectEx function (winuser.h)
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.
Syntax
BOOL AdjustWindowRectEx(
[in, out] LPRECT lpRect,
[in] DWORD dwStyle,
[in] BOOL bMenu,
[in] DWORD dwExStyle
);
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.
[in] dwExStyle
Type: DWORD
The extended window style of the window whose required size is to be calculated.
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 AdjustWindowRectEx function does not add extra space when a menu bar wraps to two or more rows.
The AdjustWindowRectEx 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.
This API is not DPI aware, and should not be used if the calling thread is per-monitor DPI aware. For the DPI-aware version of this API, see AdjustWindowsRectExForDPI. For more information on DPI awareness, see the Windows High DPI documentation.
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-l1-1-0 (introduced in Windows 8) |
See also
Conceptual
Other Resources
Reference