HWND GetWindow(hWnd,wCmd)
This function searches for a handle to a window from the window manager's list. The window-manager's list contains entries for all top-level windows, their associated child windows, and the child windows of any child windows. The wCmd parameter specifies the relationship between the window identified by the hWnd parameter and the window whose handle is returned.
| Parameter | Type/Description |
| hWnd | HWND Identifies the original window. | ||
| wCmd | WORD Specifies the relationship between the original window and the returned window. It may be one of the following values: | ||
| Value | Meaning | ||
| GW_CHILD | Identifies the window's first child window. | ||
| GW_HWNDFIRST | Returns the first sibling window for a child window. Otherwise, it returns the first top-level window in the list. | ||
| GW_HWNDLAST | Returns the last sibling window for a child window. Otherwise, it returns the last top-level window in the list. | ||
| GW_HWNDNEXT | Returns the window that follows the given window on the window manager's list. | ||
| GW_HWNDPREV | Returns the previous window on the window manager's list. | ||
| GW_OWNER | Identifies the window's owner. | ||
The return value identifies a window. It is NULL if it reaches the end of the window manager's list or if the wCmd parameter is invalid.