The REQRESIZE structure contains the requested size of a rich edit control. A rich edit control sends this structure to its parent window as part of an EN_REQUESTRESIZE notification message.
typedef struct _reqresize {
NMHDR nmhdr;
RECT rc;
} REQRESIZE;
Windows NT: Requires version 3.51 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in richedit.h.
Rich Edit Controls Overview, Rich Edit Structures, EN_REQUESTRESIZE