Send feedback on this topic to EmurasoftUsed by EVENT_HISTORY event.
typedef struct _HISTORY_INFO {
size_t cbSize;
UINT nFlags;
POINT_PTR ptTop;
POINT_PTR ptBottom;
UINT nChar;
LPCWSTR pszString;
} HISTORY_INFO;
cbSize
Size of this data structure, in bytes. This member should be sizeof( HISTORY_INFO ) before receiving the EVENT_HISTORY event.
nFlags
Specifies a combination of the following values.
HISTORY_INSERT_CHAR A character was inserted. HISTORY_BACK_SPACE The back space key was pressed to remove a character. HISTORY_DELETE_CHAR The Delete key was pressed to remove a character. HISTORY_INSERT_STRING A string was inserted. HISTORY_DELETE_STRING A string was deleted. HISTORY_INSERT_TAB_SEL The Tab key was pressed to indent the selection. HISTORY_MODIFIED The document was modified. HISTORY_COMBINED This history event should be combined with earlier event(s). HISTORY_CR_ONLY The removed character was CR only. HISTORY_LF_ONLY The removed character was LF only. HISTORY_SEL_BOX The inserted string was a vertical selection. HISTORY_INSIDE_UNDO The operation was inside the Undo command. HISTORY_INSIDE_REDO The operation was inside the Redo command.
ptTop
This member contains the previous cursor position. If the nFlags member contains HISTORY_INSERT_STRING, this member is the starting position of the selection.
ptBottom
If the nFlags member contains HISTORY_INSERT_STRING, this member is the ending position of the selection. Otherwise, this member is ignored.
nChar
If the nFlags member contains HISTORY_BACK_SPACE or HISTORY_DELETE_CHAR, this member contains the character removed.
pszString
If the nFlags member contains HISTORY_DELETE_STRING, this member contains the string removed.
Supported on Version 9.00 or later.
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