GetPosAtXY Method

This method searches for the character position at x,y.

Declaration

bool GetPosAtXY([In] int X, [In] int Y, [In] int Mode, out int CPPos);

Description

The Result is false if no text was found.

This code inserts the character X at the click position:

  private void wpdllInt1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)

  {

     IWPMemo Memo = wpdllInt1.CurrMemo;

     int pos;

     if (Memo.GetPosAtXY(e.X,e.Y,0,out pos))

     {

      int oldpos = Memo.TextCursor.CPPosition;

      Memo.TextCursor.CPPosition = pos;

      Memo.TextCursor.InputString("X",0);

      Memo.TextCursor.CPPosition = oldpos;

      Memo.ReformatAll(false,true);

    }

   }

For .NET Drag and Drop set the property AllowDrop to true.

Then you need two event handlers:

private void wpdllInt1_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)

{

     wpdllInt1.TextCursor.InputText("Dropped text");

     wpdllInt1.Reformat();

}

private void wpdllInt1_DragOver(object sender, System.Windows.Forms.DragEventArgs e)

{

   int pos;

   if (wpdllInt1.Memo.GetPosAtXY(0,0,-1, out pos))

   {

                 wpdllInt1.Memo.TextCursor.CPPosition= pos;

         e.Effect=DragDropEffects.All;

   }  else e.Effect=DragDropEffects.None;

}