BCGControlBar Pro for MFC
int CBCGPGridCtrl::GetLargeRowHeight ( ) const

Determines the height of a group.

A value that specifies the height of a group in the grid control.

Use this function to determine the height of a group (that is a large row) in the grid control. By default, this height is calculates in AdjustLayout() as the height of a row plus additional 16 pixels.