Problems with GRAPH Controls

chenbingjy

Problems with GRAPH Controls [Copy link]

 I use the GRAPH control to display three curves. Some of the code is as follows: static void _AddValues(WM_HWIN hGraph) { int i; int Add; int Vz; // Add random number data to the three data objects _ahData through three for loops for(i=0;i+="Add*Vz;" add="rand()%(2+i*i);" if(_avalue="" vz="((rand()%2)<<1)-1;" {="">MAX_VALUE) if(_aValue > MAX_VALUE) { _aValue=MAX_VALUE; } else if(_aValue<0) { _aValue=0; } //The following function adds a given data value to a data object. If the data object is "full", which means that it contains the same number of items as specified in the parameter MaxNumItems when it was created, one data item will be moved before the new value is added. Therefore, when adding data items to a full object, the first data item is removed. GRAPH_DATA_YT_AddValue(_ahData,_aValue); } } while(1) { hGraph=WM_GetDialogItem(hDlg,GUI_ID_GRAPH0); _AddValues(hGraph); GUI_Delay(10); WM_Exec(); } I found that the screen is always flickering, and the background grid is always looming. Can any experts please tell me how to solve this problem? Thank you!