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DtEditorReplace(3)
CDE
NAME
DtEditorReplace - replace a portion of the contents of a DtEditor widget
SYNOPSIS
#include <Editor.h>
DtEditorErrorCode DtEditorReplace(Widget widget,
XmTextPosition startPos,
XmTextPosition endPos,
DtEditorContentRec *data);
DESCRIPTION
The DtEditorReplace function replaces part of the contents of a DtEditor
widget with a string, a wide character string or sized buffer. The data is
transferred to the DtEditor widget using a DtEditorContentRec, which
indicates the type of data being transferred along with the actual data.
All data following the start position and up to, but not including, the end
position is replaced. If the start position and the end position are equal,
the data is inserted after the end position. The character positions begin
at zero and are numbered sequentially from the beginning of the text. After
the replacement, the insertion cursor is positioned after the last
character inserted.
The widget argument specifies the DtEditor widget ID.
The startPos argument specifies the starting character position of the
portion to replace. The replacement begins at this character.
The endPos argument specifies the ending character position of the portion
to replace. The replacement ends before this character.
The data argument is a pointer to the data structure containing the data to
insert.
For a complete definition of the DtEditor widget and its associated
resources, see DtEditor(3).
For a complete definition of DtEditorContentRec, see Editor.h(5).
RETURN VALUE
Upon successful completion, the DtEditorReplace function returns one of the
following values:
DtEDITOR_NO_ERRORS
The data was replaced sucessfully.
DtEDITOR_NULLS_REMOVED
NULL characters were found and removed from the data.
Otherwise, if the DtEditorReplace function cannot replace the data in the
DtEditor widget, it returns one of the following values:
DtEDITOR_INVALID_TYPE
The Type field is not recognized.
DtEDITOR_INVALID_RANGE
The startPos argument is greater than the endPos argument.
DtEDITOR_ILLEGAL_SIZE
The size of the buffer passed in is negative.
DtEDITOR_NULL_ITEM
The data buffer is NULL.
DtEDITOR_INSUFFICIENT_MEMORY
Not enough system memory is available to replace the data.
APPLICATION USAGE
If the data is in a disk file, rather than in memory, the application
should use DtEditorReplaceFromFile(3).
EXAMPLES
The following code segment modifies the contents of a DtEditor widget to
``The quick fox.''
Widget editor;
DtEditorContentRec cr;
DtEditorErrorCode status;
XmTextPosition start = (XmTextPosition) 4,
end = (XmTextPosition) 9;
char *sampleString1="The brown fox",
*sampleString2="quick";
cr.type = DtEDITOR_TEXT;
cr.value.string = sampleString1;
status = DtEditorSetContents(editor, &cr);
if (status != DtEDITOR_NO_ERRORS && status != DtEDITOR_NULLS_REMOVED) {
printf("Unable to set contents of the widget\n");
} else {
cr.type = DtEDITOR_TEXT;
cr.data.string = sampleString2;
status = DtEditorReplace(editor, start, end, &cr);
if (status != DtEDITOR_NO_ERRORS)
printf("Unable to replace part of the widget contents\n");
}
SEE ALSO
Editor.h(5), DtEditor(3), DtEditorAppend(3), DtEditorAppendFromFile(3),
DtEditorGetContents(3), DtEditorInsert(3), DtEditorInsertFromFile(3),
DtEditorReplaceFromFile(3), DtEditorSaveContentsToFile(3),
DtEditorSetContents(3), DtEditorSetContentsFromFile(3)
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