void AdjustWindowRectEx(lpRect,dwStyle,bMenu,dwExStyle)
This function computes the required size of the rectangle of a window with extended style based on the desired client-rectangle size. The window rectangle can then be passed to the CreateWindowEx function to create a window whose client area is the desired size.
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. The dimensions of the resulting window rectangle depends on the window styles and on whether the window has a menu.
| Parameter | Type/Description |
| lpRect | LPRECT Points to a RECT data structure that contains the coordinates of the client rectangle. | |
| dwStyle | DWORD Specifies the window styles of the window whose client rectangle is to be converted. | |
| bMenu | BOOL Specifies whether the window has a menu. | |
| dwExStyle | DWORD Specifies the extended style of the window being created. |
None.
This function assumes a single menu row. If the menu bar wraps to two or more rows, the coordinates are incorrect.