UINT BCGM_CUSTOMIZEHELP |
The BCGM_CUSTOMIZEHELP is sent to the main frame window from customization property sheet (CBCGPToolbarCustomize) when the user presses the "Help" button or the F1 key.
wParam | specifies the active page of the customization property sheet. |
lParam | points to a CBCGPToolbarCustomize object. |