private void InsertTextAtSelection(uint ec, ITfContext pContext, string pchText, int cchText)
{
// we need a special interface to insert text at the selection
var pInsertAtSelection = (ITfInsertAtSelection)pContext;
// insert the text
ITfRange pRange = pInsertAtSelection.InsertTextAtSelection(ec, 0, pchText, cchText);
// update the selection, we'll make it an insertion point just past the inserted text.
pRange.Collapse(ec, TfAnchor.TF_ANCHOR_END);
var tfSelection = new TF_SELECTION[] { new TF_SELECTION {
range = pRange, style = new TF_SELECTIONSTYLE {
ase = TfActiveSelEnd.TF_AE_NONE, fInterimChar = false
}
} };
pContext.SetSelection(ec, 1, tfSelection);
}
public override HRESULT DoEditSession([In] uint ec)
{
// get the head of the doc
var tfSelection = new TF_SELECTION[1];
try
{
pContext.GetSelection(ec, TF_DEFAULT_SELECTION, 1, tfSelection, out var cFetched);
if (cFetched == 0)
{
return(HRESULT.S_OK);
}
}
catch
{
return(HRESULT.S_OK);
}
// do the work
ToggleCase(ec, tfSelection[0].range, false);
return(HRESULT.S_OK);
}
