+INT_PTR CALLBACK system_tab_proc(HWND hsystab, UINT msg, WPARAM wparam, LPARAM lparam)
+{
+ switch(msg)
+ {
+ case WM_COMMAND:
+ switch(HIWORD(wparam))
+ {
+ case BN_CLICKED:
+ switch(wparam)
+ {
+ case IDC_WHQL_CHECKBOX:
+ {
+ update_dxdiag_info();
+ return TRUE;
+ }
+ }
+ break;