CGXGridCore::OnTrackColWidthStart
virtual BOOL OnTrackColWidthStart(ROWCOL nCol);?
nCol
Specifies the column id.
Return Value
TRUE if changing the column-width is possible; FALSE to abort changing the column-width.
Remarks
The method is called when the user has pressed the left mouse button on a grid line. It is called from OnEndTracking to determine if changing the size is possible.