在HDevelop中
dev_open_window(10,10,500,500,'black',WindowHandle) draw_region (Region, WindowHandle) *在指定窗口手动画一个闭合区域--自动闭合 dev_display (Region)
在QtCreator中
HObject ho_Region;
HTuple hv_WindowHandle;
SetWindowAttr("background_color","black"); OpenWindow(10,10,500,500,0,"visible","",&hv_WindowHandle); HDevWindowStack::Push(hv_WindowHandle); DrawRegion(&ho_Region, hv_WindowHandle); //在指定窗口手动画一个闭合区域--自动闭合 if (HDevWindowStack::IsOpen()) DispObj(ho_Region, HDevWindowStack::GetActive());