WStateDataPtr
#include <Windows.h>
typedef struct WStateData { Size Offset Description Rect userState; 8 0 Size & position when zoomed IN Rect stdState; 8 8 Size & position when zoomed OUT typedef WStateData *WStateDataPtr;
typedef WStateData **WStateDataHandle;
Notes: The WStateData structure is not used in any system call. The Window
Manager transparently maintains this structure of all zoom-able windows
types of windows, the dataHandle field of the WindowRecord contains a handle leading to this 16-byte structure.
Initially, the stdState field is set to fill most of the primary screen. It does
not get changed unless you do it manually (see below).
Whenever the user changes the size of the window (via your call to
SizeWindow), the resulting rectangle is stored in userState. It's becoming a common practice to "remember" the user's preferred
userState for documents (by saving it in a document resource), and
manually put that value in place when the document is loaded. This would be
most handy in a system which has two or more screens:
WindowPeek myWinPeek;
WStateData **hWSD;
myWinPeek=(WindowPeek)myWin;
hWSD =(WStateData **)myWinPeek->dataHandle;
**hWSD->userState = saveUsrRect; // rect used last time saved