Forums

by Carl Ranson >> Sun, 7 Feb 1999 23:47:47 GMT

Hi All,

I've just worked out how to make editable text cells in tables become fully selected when the cell gets the focus. This allows the user to overtype existing cell contents.

I added the following method to our descendant of table.

rowColumnChg(table : Table input) updating;

constants
EM_SETSEL = #00B1;
vars
editHandle : Integer;
result : Integer;
begin

inheritMethod(table);
editHandle := call findWindowEx(table.hwnd, 0,'Edit'&0.Character, null); if editHandle <> null then
result := call postMessage(editHandle, EM_SETSEL, 0,-1);
endif;
end;

This accesses and sets the selection of a textbox "window" (in the windows sense) whenever the cell changes. A similar technique can be used to access the combobox jade uses for inputType_combo cells.

You may also need to setup the following two external functions

findWindowEx(hwndParent : Integer; hwndChildAfter : Integer; classname : String; windowname : String) : Integer is FindWindowExA in user32; postMessage(hwnd:Integer; msg:Integer; wparam:Integer; lparam:Integer):Integer is PostMessageA in user32;

Regards

Carl Ranson (Turing Solutions Ltd)

by Craig Shearer >> Mon, 8 Feb 1999 0:23:54 GMT

This is great Carl. You get my vote for cool tip of the day/week/month/year!!!

Craig.

by Torrie Moore >> Fri, 25 Jun 1999 5:06:21 GMT

I am using similar code to the the code posted to select the text in a cell. The method that returns the handle of the edit box often fails and returns 0. I can't figure out why. Has onyone else had this problem and if so how can I fix it?

Torrie Moore