c语言也能干大事课堂笔记和各种函数调用.doc

一、CHECKBOX1、判断check box的选中状态a) if(SendDlgItemMessage(hwnd,IDC_CHECK1,BM_GETCHECK,0,0)MessageBox(hwnd,TEXT(同意),TEXT(),MB_OK);b) SendDlgItemMessage(hwnd,IDC_CHECK1,BM_SETCHECK,1,0)此函数的第三个参数是1表示“选中”，0则“不选中”。c) UINT IsDlgButtonChecked(HWND hDlg,Int nlDButton)返回值是BST_CHECKED/选中BST_UNCHECKED/没选中BST_INDETERMINATE/灰色的，不确定状态2、隐藏、显示、禁用、启用控件1） 隐藏：ShowWindow(hwndChild,SW_HIDE)2） 显示：ShowWindow(hwndEdtName,SW_NORMAL)3） 禁用：EnableWindow(hwndChild,FALSE)4） 启用：EnableWindow (hwndEdtName,TURE)5) 判断控件是否可见：IsWindowVisible(hwndChild)6) 判断控件是否可用：IsWindowEnabled (hwndChild)case IDC_BUTTONXZ:BOOL CHECK1=SendDlgItemMessage(hwnd,IDC_CHECK1,BM_GETCHECK,0,0);SendDlgItemMessage(hwnd,IDC_CHECK1,BM_SETCHECK,!CHECK1,0);/选中切换break;case IDC_BUTTONHIDE:HWND check1=GetDlgItem(hwnd,IDC_CHECK1);BOOL CHECK1=IsWindowVisible(check1);ShowWindow(check1,!CHECK1);/隐藏切换break;case IDC_BUTTONJINYONG:HWND check1=GetDlgItem(hwnd,IDC_CHECK1);BOOL CHECK1=IsWindowEnabled(check1);EnableWindow(check1,!CHECK1);/禁用切换break;3、打开网站 Visual C+6.0中需要 #include ShellExecute(hwnd,TEXT(“open”),TEXT(“”),NULL,NULL,SW_SHOWNARMAL);4、在程序中添加 monthview控件时，在WINMAIN一开始加入LoadLibrary(TEXT(“Comctl32.dll”)/en-us/library/cc656426(VS.85).aspx二、LISTBOX5、在listbox里面添加字符串SendMessage(hwndlist,LB_INSERTSTRING,index,(LPARAM)TEXT(“你好”);6、在listbox里面删除字符串SendMessage(hwndlist,LB_DELETESTRING,index,0);7、取得多少项Count=SendMessage(hwndlist,LB_GETCOUNT,0,0);8、选定某一项SendMessage(hwndlist,LB_SETCURSEL,index,0);9、将选中项里面的文文字复制到缓冲区Ilength=SendMessage(hwndlist,LB_GETTEXT,index,(LPARAM) szbuffer);10、选中字符串的长度Ilength=SendMessage(hwndlist,LB_GETTEXTLEN,index,0);11、radio button分组时auto属性都设置为false;在响应WM_COMMAND时如下编写：Case IDC_RADIO1:Case IDC_RADIO2:Case IDC_RADIO3:CheckRadioButton(hwnd, Case IDC_RADIO1, Case IDC_RADIO3,id); break;Case IDC_RADIO4:Case IDC_RADIO5:Case IDC_RADIO6:CheckRadioButton(hwnd, Case IDC_RADIO4, Case IDC_RADIO6,id); break;12、要判断这几个按钮哪个被选中了，程序如下：UINT check1=IsDlgButtonChecked(hwnd,IDC_RADIO1);If(BST_CHECKED=check1)GetDlgItemText(hwnd,IDC_RADIO1,buff,sizeof(buff);13、GetCheckRadioButton(firstID,lastID);int GetCheckRadioButton(HWND hwnd,int firstID,int lastID) / / RadioButton的函数int i;for(i=firstID;i=lastID;i+)UINT checki=IsDlgButtonChecked(hwnd,i);if(BST_CHECKED=checki)return i;return -1;常用函数举例A. SendMessage(HWND_BROADCAST,WM_SYSCOMMAND,SC_MONITORPOWER, (LPARAM) 2);关闭显示器B. SendMessage(HWND_BROADCAST,WM_SYSCOMMAND,SC_MONITORPOWER, (LPARAM) -1);打开显示器C. SendMessage(HWND_BROADCAST,WM_SYSCOMMAND,SC_MONITORPOWER,(LPARAM) 1);显示器省电模式D. PlaySound(TEXT(C:/WINDOWS/Media/Windows XP 注销音.wav),NULL,SND_FILENAME|SND_ASYNC|SND_LOOP);E. SND_ASYNC为异步模式，SND_LOOP为循环播放 需要添加WINmm.lib F. mciSendString(set cdaudio door open,NULL,0,0);/弹出光驱 G. mciSendString(set cdaudio door close,NULL,0,0);/关闭光驱 H. SystemShutdown();ExitWindowsEx(EWX_REBOOT, 0);SendDlgItemMessage(hwnd,IDC_COMBO1,CB_ADDSTRING,0,(LPARAM)TEXT(XX);/增加编辑框字符串HINSTANCE apphinstance=(HINSTANCE)GetWindowLong(hwnd, GWL_HINSTANCE);PlaySound(TEXT(ICR_MYMUSIC),apphinstance,SND_RESOURCE|SND_ASYNC|SND_LOOP);/播放嵌入式音乐EndDialog(hwnd, 0);/关闭窗口CheckRadioButton(hwnd,IDC_RADIO1,IDC_RADIO3,id);/id为需要选择的控件的id,例如IDC_RADIO1;GetShortPathName(sname,longpath,sizeof(longpath);/得到文件的短地址mciSendString(name,0,NULL);/可播放mp3音乐ShowWindow(hwnd,SW_MINIMIZE);/最小化串口：CreateFile(portname, /串口号 GENERIC_READ | GENERIC_WRITE, /允许读写 0, /通讯设备必须以独