BCGCBPRODLLEXPORT UINT BCGM_ON_CHART_LEGEND_AFTER_DRAW |
The framework sends the BCGM_ON_CHART_LEGEND_AFTER_DRAW registered message to an owner of chart visual object when the drawing has been completed.
wParam | HIWORD - drawing flags (BCGP_DRAW_STATIC or BCGP_DRAW_DYNAMIC). LOWORD - ID of legend visual object. |
lParam | a pointer to a graphics manager (CBCGPGraphicsManager). |
You can process this message to implement custom drawing. It's recommended to process this message only when you receive BCGP_DRAW_STATIC flag.