win32 API EDIT BOX

acce55 · 10-25-2009, 01:55 PM

Programming in win32 and im just kinda playing around. What i want to do is enter a number into a edit box, and i hit a button, and it calulates and the result gets put into the second edit box......mainly this is for a radius math problem program i am making.

Code:

 case IDB_BUTTON:{
             if(HIWORD(wParam) == BN_CLICKED){
                         
                      


                               }
                               }
                               break;

inside there is where i put my code,....GETDLGITEMTEXT maybe work....and setDLGITEMTEXT...but i dont know how to calucate something...I WANT TO enter 12 into the first edit box.....i will calculate 2*PI*12.....and it goes into the second edit box after a button click

tankyou

rdrast · 10-26-2009, 03:30 AM

Well, when the button is clicked, grab the text from the first box, convert it to a value (sscanf() perhaps?), do the math, print to a buffer, and set item text.

You listed your formula there, do you mean you can't figure out how to enter that in a program?

acce55 · 10-26-2009, 10:18 AM

Ok thx for that information, expespecially the SSCANF fucntion. I got it to work.

Instead of storing it into a buffer, i made a variable of the float type and stored the getdlgitemtext API FUNCTION into the variable. then used the senddlgitemint to set the edit box to the result

novacain · 10-29-2009, 11:02 PM

Code:

int iNumber=0;
double dResult=0;
char szBuffer[MAX_PATH]={0};

//get the value in the first edt
iNumber  = GetDlgItemInt(hWnd, IDC_EDIT1, NULL, TRUE);
//do the math
dResult = iNumber * 3.1 * 2;
//put in a text buffer
_snprintf(szBuffer, MAX_PATH-1, "%f", dResult);
//set the second edit
SetDlgItem(hWnd, IDC_EDIT2, szBuffer);

10-25-2009, 01:55 PM	#1
acce55 Registered User Join Date: Oct 2009 Posts: 2	win32 API EDIT BOX Programming in win32 and im just kinda playing around. What i want to do is enter a number into a edit box, and i hit a button, and it calulates and the result gets put into the second edit box......mainly this is for a radius math problem program i am making. Code: case IDB_BUTTON:{ if(HIWORD(wParam) == BN_CLICKED){ } } break; inside there is where i put my code,....GETDLGITEMTEXT maybe work....and setDLGITEMTEXT...but i dont know how to calucate something...I WANT TO enter 12 into the first edit box.....i will calculate 2PI12.....and it goes into the second edit box after a button click tankyou
acce55 is offline

10-26-2009, 03:30 AM	#2
rdrast Registered User Join Date: Aug 2006 Posts: 76	Well, when the button is clicked, grab the text from the first box, convert it to a value (sscanf() perhaps?), do the math, print to a buffer, and set item text. You listed your formula there, do you mean you can't figure out how to enter that in a program?
rdrast is offline

10-26-2009, 10:18 AM	#3
acce55 Registered User Join Date: Oct 2009 Posts: 2	Ok thx for that information, expespecially the SSCANF fucntion. I got it to work. Instead of storing it into a buffer, i made a variable of the float type and stored the getdlgitemtext API FUNCTION into the variable. then used the senddlgitemint to set the edit box to the result
acce55 is offline

10-29-2009, 11:02 PM	#4
novacain train spotter Join Date: Aug 2001 Location: near a computer Posts: 3,359	Code: int iNumber=0; double dResult=0; char szBuffer[MAX_PATH]={0}; //get the value in the first edt iNumber = GetDlgItemInt(hWnd, IDC_EDIT1, NULL, TRUE); //do the math dResult = iNumber * 3.1 * 2; //put in a text buffer _snprintf(szBuffer, MAX_PATH-1, "%f", dResult); //set the second edit SetDlgItem(hWnd, IDC_EDIT2, szBuffer); __________________ "Man alone suffers so excruciatingly in the world that he was compelled to invent laughter." Friedrich Nietzsche "I spent a lot of my money on booze, birds and fast cars......the rest I squandered." George Best "If you are going through hell....keep going." Winston Churchill
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