virtual BOOL RemoveWGCols(ROWCOL nFromCol, ROWCOL nToCol, UINT flags = GX_UPDATENOW);
nFromCol
Specifies the first logical column id.
nToCol
Specifies the last logical column.
flags
Specifies the update technique.
X_UPDATENOW specifies to scroll the window contents and call UpdateWindow after invalidating the window.
X_SMART specifies to scroll the window contents without calling UpdateWindow after the last invalidation.
X_INVALIDATE simply invalidates the window area right of nFromCol.
TRUE if the command has been successfully executed; it is FALSE if the command failed or if the user aborted the operation.
Overridable method which updates the window after removing the logical columns.
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