[工学]嵌入式系统.doc

青岛滨海学院教师教案 课题实验十 编写Dialog程序需 6课时教学目的要求教学重点教学难点教案编写日期2011年5月10日教学内容及教学过程提示与补充一、组织教学二、内容讲解10.1 实验目的 进一步熟悉EVC集成开发环境以及相关配置，掌握对话框应用程序的设计与实现。10.2 实验内容 编写Dialog应用程序10.3 实验设备 1. OURS-PXA270-RP实验箱，烧录有WinCE的Flash，交叉网线及USB延长线。 2. 安装Windows系统的PC机，EVC集成开发环境10.4 实验步骤 1. 硬件连接 2. 程序剖析 #include #include resource.h#define MAX_TEXT 1024BOOL CALLBACK DialogProc(HWND, UINT, WPARAM, LPARAM);/对话框窗口过程回调函数int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)/程序入口return DialogBox(hInstance, MAKEINTRESOURCE(IDD_DIALOG1/对话框资源标识), NULL, DialogProc/对话框窗口过程);HWND hLogList;/日志列表框句柄void OutputLog(LPCTSTR lpFormat, .)/写日志函数va_list arg;TCHAR buf256;if(hLogList != NULL)va_start(arg, lpFormat);wvsprintf(buf, lpFormat, arg);va_end(arg);SendMessage(hLogList, LB_ADDSTRING/增加字符串事件, 0, (LPARAM)buf);BOOL CALLBACK DialogProc(HWND hDlg/对话框句柄, UINT uMsg, WPARAM wParam, LPARAM lParam)TCHAR strTextMAX_TEXT;WORD wID, wNotifyCode;DWORD nIndex; switch(uMsg)case WM_INITDIALOG:/对话框初始化消息SendMessage(GetDlgItem(hDlg, IDC_CKLOG)/根据对话框控件标识得到对话框上某控件的操作句柄, BM_CLICK/复选框单击事件, 0, 0);SendMessage(GetDlgItem(hDlg, IDC_CHECK1), BM_CLICK, 0, 0);OutputLog(_T(initialization dialog done);break;case WM_CLOSE:EndDialog(hDlg, 0);break;case WM_COMMAND:wID = LOWORD(wParam);/控件标识wNotifyCode = HIWORD(wParam);/控件事件标识switch(wID)IDC_EDIT2IDC_LISTLOGIDC_BTNCLEARIDC_CKLOGIDC_STATICIDC_BUTTON1IDC_RADIO2IDC_RADIO1IDC_CHECK1IDC_BTNDELIDC_BTNADDIDC_EDIT1IDC_LIST1case IDC_CKLOG:/IDC_CKLOG复选框的事件处理if(wNotifyCode = BN_CLICKED)if(SendMessage(GetDlgItem(hDlg, IDC_CKLOG), BM_GETCHECK, 0, 0) = BST_CHECKED/ BST_CHECKED指的是IDC_CKLOG复选框处于被选中状态；如果被选中的话，使IDC_LISTLOG列表框与IDC_BTNCLEAR可用（Enable）)hLogList = GetDlgItem(hDlg, IDC_LISTLOG);EnableWindow(hLogList, TRUE);EnableWindow(GetDlgItem(hDlg, IDC_BTNCLEAR), TRUE);Else/如果IDC_CKLOG未被选中，则使IDC_LISTLOG列表框与IDC_BTNCLEAR不可用。EnableWindow(GetDlgItem(hDlg, IDC_BTNCLEAR), FALSE);EnableWindow(hLogList, FALSE);hLogList = NULL;break;return FALSE;case IDC_BTNCLEAR:/IDC_BTNCLEAR按钮的事件处理if(hLogList != NULL)while(SendMessage(hLogList, LB_DELETESTRING/循环删除日志列表框的字符串, (WPARAM)0, 0) != LB_ERR);break;case IDC_LIST1:/IDC_LIST列表框的事件处理if(wNotifyCode = LBN_SELCHANGE)/列表框选择项发生变化事件处理OutputLog(_T(选择第%d项), SendMessage(GetDlgItem(hDlg, IDC_LIST1), LB_GETCURSEL, 0, 0);else if(wNotifyCode = LBN_DBLCLK)/列表框双击事件处理OutputLog(_T(双击第%d项), SendMessage(GetDlgItem(hDlg, IDC_LIST1), LB_GETCURSEL, 0, 0);elsereturn FALSE;break;case IDC_BTNADD:/IDC_BTNADD按钮事件处理if(GetDlgItemText(hDlg, IDC_EDIT1, strText, MAX_TEXT) 0)/返回对话框子控件的文本SendMessage(GetDlgItem(hDlg, IDC_LIST1), LB_ADDSTRING, 0, (LPARAM)strText);/将文本内容追加到IDC_LIST1列表框内OutputLog(_T(单击Add按钮);break;case IDC_BTNDEL:/IDC_BTNDEL按钮事件处理nIndex = SendMessage(GetDlgItem(hDlg, IDC_LIST1), LB_GETCURSEL, 0, 0);if(nIndex != LB_ERR)SendMessage(GetDlgItem(hDlg, IDC_LIST1), LB_DELETESTRING, (WPARAM)nIndex, 0);OutputLog(_T(单击Delete按钮);break;case IDC_CHECK1:/IDC_CHECK1复选框事件处理if(wNotifyCode = BN_CLICKED)BOOL bEnab = FALSE;if(SendMessage(GetDlgItem(hDlg, IDC_CHECK1), BM_GETCHECK, 0, 0) = BST_CHECKED)bEnab = TRUE;EnableWindow(GetDlgItem(hDlg, IDC_RADIO1), bEnab);EnableWindow(GetDlgItem(hDlg, IDC_RADIO2), bEnab);EnableWindow(GetDlgItem(hDlg, IDC_BUTTON1), bEnab);EnableWindow(GetDlgItem(hDlg, IDC_EDIT2), bEnab);if(bEnab)OutputLog(_T(Check1 is checked);elseOutputLog(_T(Check1 is unchecked);break;return FALSE;case IDC_RADIO1:case IDC_RADIO2:if(wNotifyCode = BN_CLICKED)if(SendMessage(GetDlgItem(hDlg, IDC_RADIO1), BM_GETCHECK, 0, 0) = BST_CHECKED)OutputLog(_T(Radio1 is checked);else if(SendMessage(GetDlgItem(hDlg, IDC_RADIO2), BM_GETCHECK, 0, 0) = BST_CHECKED)OutputLog(_T(Radio2 is checked);break;return FALSE;case ID