C / C++ / MFC

I want to search music on the internet,but i don`t know how to do it?

11-Jul-10 10:50

I looked through the WMI classes and didn't find anything relevant.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

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Re: Read CPU temp

Rick York12-Jul-10 6:52

Rick York

12-Jul-10 6:52

You may want to have a look at this : http://en.wikipedia.org/wiki/System_Management_BIOS[^]

It is the wikipedia page for the SMBIOS or System Management BIOS standard. Hopefully that has something of value. If nothing else, you have another term to search for. Wink | ;)

caiguosen11-Jul-10 4:20

caiguosen

11-Jul-10 4:20

I want to finish functions which can download music files from the internet,
such as: I want to search the song named "yesterday once more",
the I can get many links which can download this song.

so it will be difficult for me to search the song and get the url of it.

can anyone tell me how to accomplish this task?

Re: I want to search music on the internet,but i don`t know how to do it?

Niklas L11-Jul-10 23:05

Niklas L

11-Jul-10 23:05

Try using a search engine.

home

Get full path of file from "Confirm file delete" window [modified]

A_Fa10-Jul-10 21:04

A_Fa

10-Jul-10 21:04

Hi all.
File delete action in windows, display a window with "Confirm file delete" title. How can I get full path of file from this window?

image

thanks a'lot.

modified on Sunday, July 11, 2010 3:12 AM

Setting the text in an edit box of another application

Still learning how to code10-Jul-10 10:12

Re: Setting the text in an edit box of another application

10-Jul-10 10:12

I am trying to interact programmatically with another application, and have succeeded in finding the handle of the correct edit box in the application's dialog. However, I can't seem to find a way to send text to the dialog control. The MSDN documetation for ::SetWindowText() states that it cannot be used to modify the text in another application. What other means is there to achieve the text transfer ?

Doug

Still learning how to code10-Jul-10 11:22

Re: Setting the text in an edit box of another application

10-Jul-10 11:22

I have now managed to copy the text to the clipboard, and then send a WM_PASTE message to the other application. This works, but is it the only way to achieve this transfer ?

Doug

enhzflep10-Jul-10 15:22

enhzflep

10-Jul-10 15:22

Personally, I'd use WM_SETTEXT[^]. It's what SetWindowText uses internally.

Re: Setting the text in an edit box of another application

Jackson201010-Jul-10 18:37

Jackson2010

10-Jul-10 18:37

WM_SETTEXT is used to set the text of a window.

Working is a happy thing!
Enjoy the free partition manager!

Re: Setting the text in an edit box of another application

enhzflep11-Jul-10 1:19

enhzflep

11-Jul-10 1:19

Which is precisely why I'd use it.

Recall that an edit control may be created thusly:

hwndEdit = CreateWindowEx(0, WC_EDIT, 0, WS_VISIBLE | WS_CHILD | WS_TABSTOP | WS_BORDER | ES_AUTOHSCROLL, 11, 11, 147, 23, hwnd, (HMENU)IDC_EDIT1, hInst, 0);

Where

hwndEdit is derclared of type HWND
hwnd holds the parents HWND
hInst holds HINSTANCE of the program
IDC_EDIT has been defined as an integer used to identify messages from this control

Re: Setting the text in an edit box of another application

Still learning how to code11-Jul-10 7:20

Re: Setting the text in an edit box of another application

11-Jul-10 7:20

Yes, I originally made an error in using SendMessage in the way that I set up lParam !!! I've got it working now ! (Much neater than using the clipboard !) So, if ::SetWindowText() ultimately uses WM_SETTEXT, then it begs the question as to why MS doe not allow it to act on "other applications" windows ??

Doug

Luc Pattyn11-Jul-10 11:49

Re: Setting the text in an edit box of another application

11-Jul-10 11:49

Probably because SETTEXT needs a pointer to the text, and that pointer must be valid in the destination app's address space.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

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Still learning how to code11-Jul-10 12:11

Re: Setting the text in an edit box of another application

11-Jul-10 12:11

<< Probably because SETTEXT needs a pointer to the text, and that pointer must be valid in the destination app's address space. >>

But if SetWindowText() ends up using SendMessage, the text is in lParam. I'm confused ......... !!

Doug

Luc Pattyn11-Jul-10 12:48

Re: Setting the text in an edit box of another application

11-Jul-10 12:48

you're welcome.

FYI: there are Win32 system calls that help you pass arbitrary amounts of data from one process to another; my LP#TrayIconBuster[^] article has an LP_Process class that shows how it's done in C#; similar techniques could be used in C/C++.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

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Luc Pattyn11-Jul-10 13:37

Re: Setting the text in an edit box of another application

11-Jul-10 13:37

lParam holds the pointer to the text, and is assumed to be a valid pointer within the process' address space. It can not be an address in some other process.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

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Still learning how to code11-Jul-10 21:45

UrlDownloadToFile() equivalent for linux?

11-Jul-10 21:45

>>Param holds the pointer to the text, and is assumed to be a valid pointer within the process' address space. It can not be an address in some other process.<<

Thanks for your patience, Luc !!
So that I can just FULLY understand this, let me describe it back to you with a few extra words (!!):-

The issuer of SendMessage() holds the variable containing the text (my app, in this case), and lParam is set up containing an address to this variable (within the senders address space ?). The receiver of SendMessage()(the 3rd party app, with which i'm endeavouring to interact) has access to lParam which contains the address of the original text, but as I'm alluding to above, is this address within the sender's address space ? I suspect that somewhere within the process, the text is COPIED to some global address space and it is THIS address that is contained within lParam. I can't see how else the process can work whilst protecting each app's memory space.

I await your words of wisdom, and to be "sorted out" !!

Again, thanks for your patience !

Doug

ALLERSLIT10-Jul-10 9:59

ALLERSLIT

10-Jul-10 9:59

Hey, Iam looking for a function i could use that is just as easy to use as UrlDownloadToFile() on windows.
C or C++ doesnt matter.

Thanks.

markkuk10-Jul-10 11:05

markkuk

10-Jul-10 11:05

libcurl[^]

ALLERSLIT10-Jul-10 12:26

ALLERSLIT

10-Jul-10 12:26

Iam aware of curl, its not as easy to use as UrlDownloadToFile().

Aescleal10-Jul-10 20:06

Aescleal

10-Jul-10 20:06

It may not be as easy to use but on the CURL website there's a simple HTTP[^] client in about 6 lines. Open a file to write to and use CURLOPT_WRITEDATA and snip snip, bob's your Aunty:

#include <stdio.h>
#include <curl/curl.h>
 
int main(void)
{
  CURL *curl = curl_easy_init();
  FILE *output_to = fopen( "output.txt", "w" );
 
  if( curl && output_to )
  {
    curl_easy_setopt(curl, CURLOPT_URL,       "curl.haxx.se" );
    curl_easy_setopt(curl, CURLOPT_WRITEDATA, output_to      );
    curl_easy_perform(curl);
  }

  if( curl ) curl_easy_cleanup(curl);
  if( output_to ) fclose( output_to );
}

Bundle that lot up in a function and you're done...

Cheers,

Ash

PS: There's no error reporting if the transfer goes pear shaped

PPS: I haven't programmed in C in years and not having cURL handy on my home computer I haven't checked the code compiles and runs but it's not far off