private: System::Void pictureBox1_Paint(System::Object^ sender, System::Windows::Forms::PaintEventArgs^ e) { // Create a local version of the graphics object for the PictureBox. Graphics^ g = e->Graphics; int x; int dataSize; dataSize = 100; for(x=0;x<=dataSize;x++) { data[x]=temperatur_value; } for(x=0;x<=dataSize;x++) { g->DrawLine(System::Drawing::Pens::Black,x,data[x],x+1,data[x]); } }