//global variable 
Int LineHight [122]. 
Int LHTemp [120]. 
Cstrings DTemp; 
Int LineNum=0; 
Int NextTime. 
Int RightLeftNum=0; 
Int check='n'; 
Int gogo=0; 
Int speed=9600; 
Int TAB=0; 
Cstrings FilePath="c: \ \ data. TXT". 


//drawing function 
//algorithm: use the LineTo function of 120 points line 
Void CCommDlg: : OnPaint () 
{
Int hoc; 
If (NextTime<600 & amp; & Stop==FALSE) hoc=600; 
The else hoc=NextTime; 
Cstrings TabStr=""; 
CPaintDC dc (this);//for drawing device context 
Dc. GetNearestColor (RGB (0, 128));//device can display the closest crColor value 
Dc. MoveTo (108250);//move to coordinate (108250) 
If (NextTime<=600 & amp; & Stop==FALSE)//will points into lines 
For (int I=0; i<(NextTime/5); I++) 
{
Dc. LineTo (108 + 5 * (I), 250 - LineHight [I] * 5 + 99);//
} 
The else 
For (int I=0; i<121; I++) 
{
Dc. LineTo (108 + 5 * (I), 250 - LineHight [I] * 5 + 99); 
} 
TabStr. The Format (" % d ", hoc/5-120);//X coordinate values corresponding to the time, make time corresponding data change 
SetDlgItemText (IDC_TAB1 TabStr); 
TabStr. The Format (" % d ", hoc/5-100); 
SetDlgItemText (IDC_TAB2 TabStr); 
TabStr. The Format (" % d ", hoc/5-80); 
SetDlgItemText (IDC_TAB3 TabStr); 
TabStr. The Format (" % d ", hoc/5-60); 
SetDlgItemText (IDC_TAB4 TabStr); 
TabStr. The Format (" % d ", hoc/5-40); 
SetDlgItemText (IDC_TAB5 TabStr); 
TabStr. The Format (" % d ", hoc/5-20); 
SetDlgItemText (IDC_TAB6 TabStr); 
TabStr. The Format (" % d ", hoc/5); 
SetDlgItemText (IDC_TAB7 TabStr); 
} 


Void CCommDlg: : OnComm () 
{
If (stop) return;//if the suspension, do not accept the data 
The VARIANT m_input1;//the VARIANT type variables, used to store the received data 
COleSafeArray m_input2;;//safearray type variables 
Long length, I; 
BYTE data [600].//define type BYTE array 
Cstrings STR.//define string 
If (m_Comm. GetCommEvent ()==2)//receiving buffer in characters 
{
M_input1=m_Comm. GetInput ();//reads data in the buffer to receive the data stored in the VARIANT type variable 
M_input2=m_input1;//to the VARIANT type variables into ColeSafeArray type 
Length=m_input2. GetOneDimSize ();//determine the data length 
//. GetOneDimSize () returns the number of one dimensional array element, the one-dimensional array inside each element is an array type, deposit in order to the data in [] 
for(i=0; iM_input2. GetElement (& amp; I, the data + I);//convert data to BYTE array, there is data in [I], 

for(i=0; i{
CFile file; 
Cstrings tempstr; 
BYTE a=* (char *) (data + I); 
(data BYTE b=* (char *) + (+ + I)); 
Float=(float) a + c (float) (10) % b/10; 
STR. The Format (" % 2.1 f ", c);//will c formatting 
If (STR) GetLength () & lt; 5) STR="0" + STR; 
STR=STR. Right (5);//five characters extracted from array 
M_ReceiveData +=STR;//will just collect number added to edit box 
LineHight [121]=a; 


The Display ();//handling of data display before 


//to save data to a file 
If (m_ReceiveData GetLength () & gt;=600)//just 600 characters corresponding to 120 data 
{
CStdioFile readfile; 
Cstrings readstr readstr2; 
If (readfile. Open (FilePath, CFile: : modeRead)) 
{
While (readfile. ReadString (readstr))//query, line by line until end-of-file 
{
Readstr2 +=readstr; 
} 
Readfile. Close (); 
} 

If (file. Open (FilePath, CFile: : modeCreate | CFile: : modeReadWrite)) 
{
File. The Write (readstr2, readstr2 GetLength ());//the original data 
File. The Write (m_ReceiveData, 600);//write new 120 data 
File. The Close (); 
M_ReceiveData=""; Cleaning the edit box//
break; 
} 
} 
} 
} 
The UpdateData (FALSE);//update the content of the edit box 
} 
//to display data before processing: will the new years according to add to the left, the original moves to the right a 
Void CCommDlg: : Display () 
{
If (NextTime & lt;=600 & amp; & Stop==FALSE) 
{
LineHight NextTime/5=LineHight [121]. 
} 
The else 
{
For (int I=0; i<120; I++) 
{
LineHight [I]=LineHight [I + 1); 
} 
LineHight [120]=LineHight [121]. 
} 
NextTime=NextTime + 5; 
This - & gt; Invalidate (). 
return; 
} 

//the run between the three functions of the order? Is not the main function suddenly won't see the code,
//my question is dc. LineTo (108 + 5 * (I), 250 - LineHight [I] * 5 + 99);
//and BYTE a=* (char *) (data + I);
//BYTE b=* (char *) + (+ + I) (data);
//float=(float) a + c (float) (10) % b/10;
//STR. The Format (" % 2.1 f ", c);//will c formatting
//if (STR) GetLength () & lt; 5) STR="0" + STR;
//STR=STR. Right (5);//five characters extracted from array
//m_ReceiveData +=STR;//will just collect number added to edit box
//LineHight [121]=a;
//the two algorithms can't understand,,, I hope you can help me explain,

CodePudding user response:

Suggest the building Lord move this problem below the MFC section...

CodePudding user response:

Does the use of a mscom control

CodePudding user response:

reference 1st floor wenpinglaoyao response:

suggest move this problem to the building Lord MFC under section...

Thank you very much, has been moving ~

CodePudding user response:

COM communication protocol

CodePudding user response:

The

reference 4 floor mengzhisuoliu reply:

COM communication protocol

But to read out the value of the serial debugging assistant and I read it out inconsistencies in the ah,,

CodePudding user response:

Two things read numerical difference so much,,,

CodePudding user response:

It is recommended to use portmon auxiliary software debugging serial communication program,nullnull