原创 Labwindows/cvi8.5学习日志(21)----密码操作

//*********************************************************
// Labwindows/cvi8.5 密码操作
// szlihongtao
// 2010-06-17
// 参照 王建新的<Labwindows/cvi测试技术及工程应用> page90
// 稍有改写
//*********************************************************
#include "toolbox.h"
#include "combobox.h"
#include "pwctrl.h"
#include "hotringctrl.h"
#include <cvirte.h>  
#include <userint.h>
#include "userandpassword.h"
//*********************************************************
static int panelpassword;
static int panelHandle;
//*********************************************************
static void init(void)
{  
    Combo_NewComboBox (panelHandle, PANEL_COMBO);  //将String控件转化为Combo Box控件     
    PasswordCtrl_ConvertFromString (panelHandle, PANEL_PASSWORD); //将String控件转化为Password控件     
   
    //向Combo Box控件中插入项目内容
 Combo_InsertComboItem (panelHandle, PANEL_COMBO, -1, "杨过");
 Combo_InsertComboItem (panelHandle, PANEL_COMBO, -1, "小龙女");
 Combo_InsertComboItem (panelHandle, PANEL_COMBO, -1, "杨康");
 Combo_InsertComboItem (panelHandle, PANEL_COMBO, -1, "郭靖");
 
 //用于控制是否显示提示内容，默认为显示
 //这条语句可以取消
 SetCtrlToolTipAttribute (panelHandle, PANEL_CMD_OK, CTRL_TOOLTIP_ATTR_ENABLE, 1);
 
 //当鼠标悬停设置每个控件应显示提示的内容
 SetCtrlToolTipAttribute (panelHandle, PANEL_CMD_OK, CTRL_TOOLTIP_ATTR_TEXT, "这是确定按钮");
 SetCtrlToolTipAttribute (panelHandle, PANEL_CMD_CLEAR, CTRL_TOOLTIP_ATTR_TEXT, "这是取消按钮");
 SetCtrlToolTipAttribute (panelHandle, PANEL_CMD_VIEW, CTRL_TOOLTIP_ATTR_TEXT, "这是查看密码按钮");
 SetCtrlToolTipAttribute (panelHandle, PANEL_COMBO, CTRL_TOOLTIP_ATTR_TEXT, "请输入用户名");
 SetCtrlToolTipAttribute (panelHandle, PANEL_PASSWORD, CTRL_TOOLTIP_ATTR_TEXT, "请输入密码");
}
//*********************************************************
int main (int argc, char *argv[])
{
 if (InitCVIRTE (0, argv, 0) == 0)
  return -1; /* out of memory */
 if ((panelHandle = LoadPanel (0, "userandpassword.uir", PANEL)) < 0)
  return -1;
   
 init();
 DisplayPanel (panelHandle);
 RunUserInterface ();
 DiscardPanel (panelHandle);
 return 0;
}
//*********************************************************
//确认是否输入正确
//*********************************************************
int CVICALLBACK ok (int panel, int control, int event,
  void *callbackData, int eventData1, int eventData2)
{
 int len;
 int plen;
 char *username;
 char *passwordstring;
 
 switch (event)
 {
  case EVENT_COMMIT:
  { 
   //得到Combo Box中字符串的长度
   GetCtrlAttribute (panelHandle, PANEL_COMBO, ATTR_STRING_TEXT_LENGTH, &len);
   
   //动态分配字符串长度加1的空间，最后一个空间存储结束符'\0'值
   username = (char *) malloc (len * sizeof (char) + 1);  
   username[0] = '\0';   //清除用户名中的内容  
   //strcpy(username,"");
   
   //将用户名存储到username
   GetCtrlVal (panelHandle, PANEL_COMBO, username);
   
   //得到Password中内容的长度
   PasswordCtrl_GetAttribute (panelHandle, PANEL_PASSWORD, ATTR_PASSWORD_MAX_LENGTH, &plen);
   
   //动态分配Password长度加1的空间，最后一个空间存储结束符'\0'值
   passwordstring = (char *) malloc (plen * sizeof (char) + 1); 
   passwordstring[0] = '\0'; //清除Password中的内容   
   
   //取得Password中存储的内容
   PasswordCtrl_GetAttribute (panelHandle, PANEL_PASSWORD, ATTR_PASSWORD_VAL, passwordstring);
   
   //判断密码输入是否正确
   if ((strcmp (username, "杨过") ==0)
    && (strcmp (passwordstring, "yangguo") == 0))
    MessagePopup ("密码", "密码正确！");
   else
    MessagePopup ("密码", "密码不正确！");  
              
      free (username);     //释放动态分配的内存
      free (passwordstring);
   break;
  } 
 }
 return 0;
}
//*********************************************************
int CVICALLBACK clear (int panel, int control, int event,
  void *callbackData, int eventData1, int eventData2)
{
 switch (event)
 {
  case EVENT_COMMIT:
  { 
   //清除密码
   SetCtrlVal(panelHandle, PANEL_PASSWORD,"");
   //PasswordCtrl_SetAttribute (panelHandle, PANEL_PASSWORD, ATTR_PASSWORD_VAL, "");
   break;
  } 
 }
 return 0;
}
//*********************************************************
int CVICALLBACK timer (int panel, int control, int event,
  void *callbackData, int eventData1, int eventData2)
{
 int keymodifiers;
 int rightdwon = 0;
 int leftdwon = 0;
 int y;
 int x;
 int len;
 char *passwordstring; 
 char message[100];
 
 switch (event)   
 {
  case EVENT_TIMER_TICK:
  {
   //得到鼠标的状态，包括x,y坐标及左键、右键是否按下
   GetGlobalMouseState (&panelHandle, &x, &y, &leftdwon, &rightdwon, &keymodifiers); 
   
   //如果按下左键、右键及Ctrl键时，弹出对话框，显示密码
   if ((leftdwon==1)
    && (rightdwon==1)
    && (keymodifiers == VAL_MENUKEY_MODIFIER))
   {
       PasswordCtrl_GetAttribute (panelHandle, PANEL_PASSWORD, ATTR_PASSWORD_MAX_LENGTH, &len);
       passwordstring = (char *) malloc (len * sizeof (char));
       PasswordCtrl_GetAttribute (panelHandle, PANEL_PASSWORD, ATTR_PASSWORD_VAL, passwordstring);

    strcat (message, "输入的密码是：\n");         
    strcat (message, passwordstring);
    MessagePopup ("密码", message);
    
      free (passwordstring);
   }
   break;
  } 
 }
 return 0;
}   
//*********************************************************
int CVICALLBACK passwordview (int panel, int control, int event,
  void *callbackData, int eventData1, int eventData2)
{
 switch (event)
 {
  case EVENT_COMMIT:
  { 
   panelpassword = LoadPanel (0, "userandpassword.uir", PANEL_2);
   
   //采用模式对话框
   InstallPopup (panelpassword);
   break;
  } 
 }
 return 0;
}   
//*********************************************************
int CVICALLBACK hidepanel (int panel, int control, int event,
  void *callbackData, int eventData1, int eventData2)
{
 switch (event)
 {
  case EVENT_COMMIT:
   DiscardPanel (panelpassword);
   break;
 }
 return 0;
}
//*********************************************************
int CVICALLBACK panelCB (int panel, int event, void *callbackData,
  int eventData1, int eventData2)
{
 switch (event)
 {
  case EVENT_CLOSE:
   QuitUserInterface (0);
   break;
 }
 return 0;
}
//*********************************************************
//*********************************************************
//*********************************************************