C / C++ / MFC Discussion Boards

Re: Connect to bluetooth service watch and read HR data

Richard MacCutchan20-Sep-21 6:32

Richard MacCutchan

20-Sep-21 6:32

What do you mean? I have tried to help you and I have told you where to find the information you need.

Re: Connect to bluetooth service watch and read HR data

jeron120-Sep-21 6:35

jeron1

20-Sep-21 6:35

Wim Van den Borre wrote:
you spend days and days trying to work stuff out

And Richard is trying to lessen that time by giving you some sage advice. This is how integrations work, if devices are spitting out data in certain format (and many times that format is specific to the vendor) it is up to YOU to determine (by looking at available vendor documentation) and code for this format.

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Re: Connect to bluetooth service watch and read HR data

Wim Van den Borre20-Sep-21 6:49

Wim Van den Borre

20-Sep-21 6:49

Ow boy, i started by telling i'm a complete beginner and was looking for people who have experience in this. I'm not looking for dataformats, i'm looking to connect w10 bluetooth through c++ not a lot to find on the interwebz, so if anyone has had succesfull experience with this please answer this thread.

Re: Connect to bluetooth service watch and read HR data

Dave Kreskowiak20-Sep-21 7:04

Dave Kreskowiak

20-Sep-21 7:04

You're not going to find anyone who has experience SPECIFIC TO YOUR DEVICE. You're getting the correct advice, and as a beginner, you need to learn that the best source of information on a specific device is the manufacturer of that device.

Asking questions is a skill
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Re: Connect to bluetooth service watch and read HR data

Wim Van den Borre20-Sep-21 7:11

Wim Van den Borre

20-Sep-21 7:11

years ago i made some mvc apps, the help i got on codeproject was incredible.
Seems this is down the drain, none of you 3 are even reading my question, in stead of thinking about an answer (why else would you responsd to a question?) it's rtfm and acting hurt.

Re: Connect to bluetooth service watch and read HR data

Dave Kreskowiak20-Sep-21 7:18

Dave Kreskowiak

20-Sep-21 7:18

I have read it. THe advice you've gotten gets you to the point right after successfully connecting to the device. Reading data from it is device dependant, and that is where the CP advice ends and the manufacturer advice begins.

Asking questions is a skill
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Re: Connect to bluetooth service watch and read HR data

Wim Van den Borre20-Sep-21 9:52

Wim Van den Borre

20-Sep-21 9:52

If anyone is interested in this project, i found code in c# that does almost exactly what i want hr formats are almost the same for a lot of manufacturers, unfortunatelt i need my code to work in c++.
GitHub - cornelhuman/QuickBluetoothLE: Quickly create a C# application to read values from a Bluetooth Low Energy device. This application is a Dot.Net 4.7.2 console application that uses the Universal Windows Platform libraries to interact with Blu[^]

Re: Connect to bluetooth service watch and read HR data

David Crow20-Sep-21 7:42

David Crow

20-Sep-21 7:42

Wim Van den Borre wrote:
i'm a complete beginner and was looking for people who have experience in this.

You are making a huge assumption that anyone here, beside yourself, has any experience with talking to a "garmin watch via bluetooth."

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Re: Connect to bluetooth service watch and read HR data

Richard MacCutchan21-Sep-21 0:42

Richard MacCutchan

21-Sep-21 0:42

Well who'd a thought: https://developer.garmin.com/[^].

Re: Connect to bluetooth service watch and read HR data

David Crow21-Sep-21 2:44

David Crow

21-Sep-21 2:44

That almost looks like tools one could use to read data from a Garmin device. I wonder if it would help the OP!

Control PDF from c ++

danekbb10-Sep-21 1:57

danekbb

10-Sep-21 1:57

I wanted to navigate to a page in PDF file.
Theoretically, this could be done with ShellExecute (NULL, "open", "Path \ File", param1, NULL, SW_NORMAL), where
param1 = "# page = 123" or "/ A page = 123" or "/ A \" page = 123 \ ""; then the PDF file is opened, but the page is not activated.
You could do the same thing by opening PDF and then navigating to the page. It's a good idea, but it has the disadvantage that I don't know either.

Does anyone know?

Thanks for the answers

Re: Control PDF from c ++

Richard MacCutchan10-Sep-21 2:22

Richard MacCutchan

10-Sep-21 2:22

It will depend on which application actually opens the PDF file.

Re: Control PDF from c ++

Victor Nijegorodov10-Sep-21 4:23

Victor Nijegorodov

10-Sep-21 4:23

I posted you a working example in this post: Control PDF from c ++

Re: Control PDF from c ++

Dave Kreskowiak10-Sep-21 5:28

Dave Kreskowiak

10-Sep-21 5:28

You don't "control the PDF". You have to control the application that is opening and displaying the PDF file.

How you do that depends entirely on the application you're using to display the PDF. There's probably going to be applications where you don't have that control.

You can do it if the machine has Acrobat Reader installed it, which is what the previous answer is using.

Asking questions is a skill
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Google: C# How to debug code
Seriously, go read these articles.

Dave Kreskowiak

Other program access and data extraction

cocaya7-Sep-21 16:44

cocaya

7-Sep-21 16:44

Hello.

I'm trying to get text data from another program.

The window handle was found.
Please check the image link.
CLICK Here - Attach Image Link

But I'm not sure what to do next.

Should I use something similar to the GetDlgCtrlID method?
I do not know.

The return is -1.

Please advise.
thank you.

Re: Other program access and data extraction

Victor Nijegorodov7-Sep-21 21:17

Victor Nijegorodov

7-Sep-21 21:17

There are similar questions/discussions in different forums. Have a look at python - Need a way to access control in a window with control id using pywinauto - Stack Overflow

Re: Other program access and data extraction

Richard MacCutchan7-Sep-21 22:15

Richard MacCutchan

7-Sep-21 22:15

cocaya wrote:
the GetDlgCtrlID method

That will only return a valid id if the handle is that of an actual dialog control. But even if it does, the id will not be of any use.

To get the text of a Window in another process, you must send the WM_GETTEXT message (Winuser.h) - Win32 apps | Microsoft Docs[^] to it. But you first need to know that the Window contains valid text.

Re: Other program access and data extraction (help me)

cocaya8-Sep-21 1:55

cocaya

8-Sep-21 1:55

*CLICK here : Attach Image Link

handle => 0x001229e8
GetControlText(IntPtr hWnd){

// Get the size of the string required to hold the window title (including trailing null.)
Int32 titleSize = SendMessage((int)hWnd, WM_GETTEXTLENGTH, 0, 0).ToInt32();

// If titleSize is 0, there is no title so return an empty string (or null)
if (titleSize == 0)
return String.Empty;

StringBuilder title = new StringBuilder(titleSize + 1);

SendMessage(hWnd, (int)WM_GETTEXT, title.Capacity, title);

return title.ToString();
}

Thanks reply, but

When this function is executed, String.Empty is returned.
How can I get grid table values??

I desperately want to solve it.
please help me..

Re: Other program access and data extraction (help me)

Richard MacCutchan8-Sep-21 2:10

Richard MacCutchan

8-Sep-21 2:10

It depends on how that grid controls its content. A simple WM_GETTEXT message is unlikely to return anything. If it is a Windows ListView then you could try some of the LVM_GETxxx messages: List View Messages - Win32 apps | Microsoft Docs[^].

Re: Other program access and data extraction (help me)

cocaya8-Sep-21 17:42

cocaya

8-Sep-21 17:42

Thanks for the advice.

I tried the following, but the return value is 0.
int nTextLength = SendMessage(hwnd6, WM_GETTEXTLENGTH, 0, 0).ToInt32();

How should I approach it?ㅜ.ㅜ
CLICK Here : MS inspect.exe capture.

Re: Other program access and data extraction (help me)

Richard MacCutchan8-Sep-21 21:59

Richard MacCutchan

8-Sep-21 21:59

1. Why are you calling ToInt32 on a value that is already an int type?
2. If WM_GETTEXTLENGTH returns zero, then that tells you the Window is not a Text type. As I said yesterday, if the contents are shown in a grid then you need to find out what actual control it is, and use the control's methods to extract the contents.

What is makegetstatuscmd() command function?

Md Mubdiul Hasan 30-Aug-21 14:09

Md Mubdiul Hasan

30-Aug-21 14:09

Hi there,
I found difficulties to understand the following function,

C++

void MakeGetStatusCMD(void)

Under this function, float type WORDS and size are defined .
This function is using for UART/MODEBUS communication protocol. Its using to know the status of receiving data in main dsp control board. Variables are defined for size of DSP Registers and counter of register.

At last, its written

<pre lang="C++">SendDSPCMD()

modified 30-Aug-21 21:41pm.

Re: What is makegetstatuscmd() command function?

_Flaviu30-Aug-21 21:32

_Flaviu

30-Aug-21 21:32

I guess you'll need to deliver more details about this

MakeGetStatusCMD()

function (his body, anything), because we don't know anything about this

Re: What is makegetstatuscmd() command function?

Md Mubdiul Hasan 30-Aug-21 22:47

Md Mubdiul Hasan

30-Aug-21 22:47

I guess you'll need to deliver more details about this
MakeGetStatusCMD()
function (his body, anything), because we don't know anything about this

Its a command type function. Lets say DSP is master and another type of MCU is slave.
We are trying to make bridge among them. Additionally, this Modebus protocol has interface with API and display.It may have remote control piping. Slave is host here.

This file where I got this function has included register and device functioning header file.

Those can be describe here,

BOOL SysUsartBusy;//combining the functions of a data bus to carry information, an address bus to determine where it should be sent or read from, and a control bus to determine its operation.
WORD SysCmdTimeoutCount;//Byte and Word Swapping in Modbus, proposes a method to timeout a long-running command .
WORD SysCmdAckDelayCount;// system acknowledged, puting a delay count 
WORD SysCmdDelayCount; // delay will counted 
//The tail() method is utilized to return a new queue that consists of all the elements except the first one.
BYTE CmdQueueHeader, CmdQueueTail;// In modbus data stream at first (flag, adress, control) belongs from a header file,Returns the queue of upcoming commands for the specified device. 
BYTE CmdQueue[CMD_QUEUE_SIZE];//Queue is a function, may be its use for checking 1st and last data within a particular size.

Re: What is makegetstatuscmd() command function?

jeron131-Aug-21 4:33

jeron1

31-Aug-21 4:33

Do you have the source code for the MakeGetStatusCMD() function?

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