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EM_FINDWORDBREAK message

Finds the next word break before or after the specified character position or retrieves information about the character at that position.

Parameters

wParam

Specifies the find operation. This parameter can be one of the following values.

ValueMeaning
WB_CLASSIFY

Returns the character class and word-break flags of the character at the specified position.

WB_ISDELIMITER

Returns TRUE if the character at the specified position is a delimiter, or FALSE otherwise.

WB_LEFT

Finds the nearest character before the specified position that begins a word.

WB_LEFTBREAK

Finds the next word end before the specified position. This value is the same as WB_PREVBREAK.

WB_MOVEWORDLEFT

Finds the next character that begins a word before the specified position. This value is used during CTRL+LEFT ARROW key processing. This value is the similar to WB_MOVEWORDPREV. See Remarks for more information.

WB_MOVEWORDRIGHT

Finds the next character that begins a word after the specified position. This value is used during CTRL+right key processing. This value is similar to WB_MOVEWORDNEXT. See Remarks for more information.

WB_RIGHT

Finds the next character that begins a word after the specified position.

WB_RIGHTBREAK

Finds the next end-of-word delimiter after the specified position. This value is the same as WB_NEXTBREAK.

 

lParam

Zero-based character starting position.

Return value

The message returns a value based on the wParam parameter.

Return codeDescription
wParam

Return Value

WB_CLASSIFY

Returns the character class and word-break flags of the character at the specified position.

WB_ISDELIMITER

Returns TRUE if the character at the specified position is a delimiter; otherwise it returns FALSE.

Others

Returns the character index of the word break.

 

Remarks

If wParam is WB_LEFT and WB_RIGHT, the word-break procedure finds word breaks only after delimiters. This matches the functionality of an edit control. If wParam is WB_MOVEWORDLEFT or WB_MOVEWORDRIGHT, the word-break procedure also compares character classes and word-break flags.

For information about character classes and word-break flags, see Word and Line Breaks.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Richedit.h

 

 

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