C / C++ / MFC

28-Feb-07 17:59

hi all,
I have a problem with the SendInput() function. Let me paste the code in a button click event here.

//code start
WinExec("notepad",1);

Sleep(1000);

CString str="D:\\sample.gho";

INPUT key[2];

for(int index=0;index<str.getlength();index++)
{
="" ::zeromemory(key,="" sizeof(key));=""
="" key[0].type="key[1].type" =input_keyboard;
="" key[0].ki.wvk="key[1].ki.wVk" =vkkeyscan(str.getat(index));
="" key[1].ki.dwflags="KEYEVENTF_KEYUP;
" key[0].ki.time="key[1].ki.time" =="" 0;
="" key[0].ki.dwextrainfo="key[1].ki.dwExtraInfo=0;
" sendinput(2,key,sizeof(input));
="" }
="" code="" end

this="" is="" supposed="" to="" invoke="" the="" notepad="" window="" and="" then="" write="" "d:\\sample.gho"="" in="" it.

but="" it="" writing="" "d;\\sample.gho"=""

can="" anybody="" help="" me?

thanks="" advance.

=""

<div="" class="ForumSig">SYAMLAL

ThatsAlok28-Feb-07 19:52

ThatsAlok

28-Feb-07 19:52

SyamlalS wrote:
This code is supposed to invoke the notepad window and then write "D:\\sample.gho" in it.

But it is writing "d;\\sample.gho"

what the difference are you worrying abt capital D and ; or some other problem

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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Syamlal S Nair28-Feb-07 19:58

28-Feb-07 19:58

ThatsAlok wrote:
what the difference are you worrying abt capital D and ; or some other problem

yes, of course I am worried about the case of 'D' and semi colon

pls give solution

Thanks

SYAMLAL

cp987628-Feb-07 20:20

cp9876

28-Feb-07 20:20

To type 'D' and ':' you would have to press the Shift key, I suspect that you need to do the same for SendInput.

Syamlal S Nair28-Feb-07 20:28

28-Feb-07 20:28

Pls explain how can I send the shift key through sendInput()

SYAMLAL

prasad_som28-Feb-07 22:01

28-Feb-07 22:01

SyamlalS wrote:
//code start
WinExec("notepad",1);

To start with, I wonder , why you are using this API, if there are better options available.

SyamlalS wrote:
But it is writing "d;\\sample.gho"

You have not considered virtual key state, which can be VK_SHIFT or VK_CAPITAL in this case.
Your code should be modified like this,

WinExec("notepad",1);
Sleep(1000);
CString str(_T("d:\\sample.gho"));
INPUT key[2];
int nLeng = str.GetLength();
for(int index=0;index < nLeng;index++ ){
::ZeroMemory(key, sizeof(key)); 
key[0].type = key[1].type = INPUT_KEYBOARD;
SHORT nKeyCode = VkKeyScan(str[index]);
if (VK_SHIFT & nKeyCode)
{
	key[0].ki.wVk	  = VK_SHIFT;
	key[0].ki.dwFlags = KEYEVENTF_KEYUP;
        //shift key plus char
	key[1].ki.wScan	   =  str[index];
	key[1].ki.dwFlags  = KEYEVENTF_UNICODE ;
}
else if (VK_CAPITAL & nKeyCode)
{
	key[0].ki.wVk	  = VK_CAPITAL;
	key[0].ki.dwFlags = KEYEVENTF_KEYUP;
        //capital key plus char
	key[1].ki.wScan   = str[index];
	key[1].ki.dwFlags = KEYEVENTF_UNICODE ;
}
else
{
	key[1].ki.wVk	  = nKeyCode;
	key[1].ki.dwFlags = KEYEVENTF_UNICODE ;
}

key[0].ki.time = key[1].ki.time = 0;
key[0].ki.dwExtraInfo = key[1].ki.dwExtraInfo=0;
SendInput(2,key,sizeof(INPUT));
}

Prasad
Notifier using ATL | Operator new[],delete[][^]

Syamlal S Nair28-Feb-07 22:11

28-Feb-07 22:11

hi,

I tried with the code which u gave. But I am getting an error message when I go for a build

'KEYEVENTF_UNICODE' : undeclared identifier

Pls help

SYAMLAL

prasad_som28-Feb-07 22:21

28-Feb-07 22:21

Ohh ! you need to use latest platform SDK for that.
And , if you are using VC6, then you need to direct, include directories path to latest platform SDK.
Refer this FAQ[^] for more info.

Prasad
Notifier using ATL | Operator new[],delete[][^]

prasad_som1-Mar-07 1:12

1-Mar-07 1:12

What happened ? Do you able to resolve this ?

Prasad
Notifier using ATL | Operator new[],delete[][^]

Syamlal S Nair1-Mar-07 1:17

1-Mar-07 1:17

Installation of SDK is not over,,Once done I will get back to you

Thanks for everything

SYAMLAL

Syamlal S Nair1-Mar-07 17:39

1-Mar-07 17:39

hi
I selected the SDK for Microsoft Server 2003,and installed it.

What should I do next to get the code compiled.

Please do reply.

SYAMLAL

prasad_som15-Mar-07 18:28

15-Mar-07 18:28

Shyamal,
What about this problem ? Does it get solved ?

Prasad
Notifier using ATL | Operator new[],delete[][^]

Syamlal S Nair15-Mar-07 18:37

15-Mar-07 18:37

Nop Prasad,that is not yet done.

I have kept it aside, since it is not immediately required

Neway, Warm welcome for ur helps regarding the same...

Thanks,

SYAMLAL

prasad_som15-Mar-07 18:46

How to judge if the folder can be written?

15-Mar-07 18:46

Ohh ! No matter.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Syouki_kou28-Feb-07 15:53

Syouki_kou

28-Feb-07 15:53

How could I judge it, it assume that I have a path like C:\My folder\Myfile\, how to judge if this folder can be written? Note, path may be on a read-only CD or from network with no write privilege, is there a API to complete this function?
I tried CreateFile, while it fail with the error code ERROR_ACCESS_DENIED it is have no write privilege, what I want to know is that if there are other methods to do so?
3ks and best regards.

One day a pretty girl asked me:"Do u think you are handsome?" "I don't think so!".She gave a slap in my face:"Why lying?"...

Re: How to judge if the folder can be written?

Mark Salsbery28-Feb-07 16:14

Mark Salsbery

28-Feb-07 16:14

How about the GetFileAttributes()[^] API?

Mark

"Great job, team. Head back to base for debriefing and cocktails."
(Spottswoode "Team America")

Re: How to judge if the folder can be written?

Syouki_kou28-Feb-07 16:22

Syouki_kou

28-Feb-07 16:22

GetFileAttributes?? I don't think it can work properly. Here I have a path, GetFileAttributes can only get its attribute, how could i know if i can write in the folder. Even the folder is read-only, I can create file in it, right?

One day a pretty girl asked me:"Do u think you are handsome?" "I don't think so!".She gave a slap in my face:"Why lying?"...

Re: How to judge if the folder can be written?

Mark Salsbery28-Feb-07 16:51

Mark Salsbery

28-Feb-07 16:51

Oh yeah, sorry Smile | :)

It seems like checking all the possibilities (security, writable device, etc) would be alot
more work than just checking the return from CreateFile().

Maybe there's an easier API - I don't know what it is.

Mark

"Great job, team. Head back to base for debriefing and cocktails."
(Spottswoode "Team America")

How to send a scroll message to MS WORD?

Michael ZY28-Feb-07 15:52

Michael ZY

28-Feb-07 15:52

HI,
I would like to send a scroll message to Other app(like explorer.exe, IE, notepad.exe....) Using Code like this:::SendMessage(hwnd,WM_VSCROLL,SB_LINEDOWN,0);
It succeed in these APP, but when i try to send the message to MS WORD and OPERA, it failed.
Is this a MDI's reason, How can i solve this?

thanks.

worker thread did not survive the release version - MFC

awah28-Feb-07 15:34

awah

28-Feb-07 15:34

worker thread did not survive the release version - MFC

in the debug version it did not clash and ran smooth, and completed the cyclesequence function

but it clashed badly in the release version. cyclesequence function was never completed

sry i am very bad in threading. i have search all over but cannot find the solution
ok here's how my program goes

when the user presses a button called "RUN" , i begin my thread

void COpc_serialDlg::OnRun() <br />
{	<br />
	m_th_sequence =	AfxBeginThread(th_start_sequence, (LPVOID)this );<br />
	m_run.EnableWindow(FALSE);<br />
	<br />
}<br />

my thread begins by obtaining information from editboxes and starts a function called CycleSequence

<br />
UINT COpc_serialDlg::th_start_sequence(LPVOID lpvParam)<br />
{<br />
    COpc_serialDlg *th_start_receiving = (COpc_serialDlg*)lpvParam; // standard in thread<br />
	int times = 0;<br />
	CString startstring = "";<br />
	CString repeatstring = "";<br />
	CString endstring = "";<br />
	times = th_start_receiving->GetDlgItemInt(IDC_REPEAT_TIMES1);<br />
	th_start_receiving->GetDlgItemText(IDC_STARTKEY1 , *startstring);<br />
	th_start_receiving->GetDlgItemText(IDC_REPEAT1 , *repeatstring);<br />
	th_start_receiving->GetDlgItemText(IDC_ENDKEY1 , *endstring);<br />
	th_start_receiving->CycleSequence(times, *startstring, *repeatstring, *endstring);<br />
	th_start_receiving->PrintRedDebugMsg( "Cycle thread exiting");<br />
	th_start_receiving->m_run.EnableWindow(TRUE);<br />
<br />
	return 0;<br />
}<br />

here's how CycleSequence function looks like

int COpc_serialDlg::CycleSequence(int times, CString startstring, CString repeatstring, CString endstring)<br />
{<br />
<br />
	CString temp_string = "";<br />
	int i = 0;<br />
	int Stroke_Count = GetNumberOfStrokes( startstring);<br />
	CString local_repeatstring = "";<br />
	CString local_repeatstring2 = "";<br />
<br />
//	SetTimer(999 , 2000,0); // only when this timer expires, green light will come again,  if red light is set again, timer resets<br />
<br />
<br />
// start string just write once before anything else		<br />
	for(  i = 0 ; i < Stroke_Count ; i++)<br />
	{<br />
<br />
		local_repeatstring = startstring;<br />
<br />
<br />
		m_serial.Write(Read_Out_Int(local_repeatstring),1,0,0,10);  // 5000 ms timeout<br />
		startstring = Remove_Out_Int(startstring);<br />
<br />
	// let's wait 15 seconds for a response from OPC<br />
		SetTimer( 999 , 15000 , NULL);<br />
		WaitForSingleObject(m_idle_event , INFINITE); // after every .write command must contain this<br />
<br />
	}<br />
<br />
// looping script is here<br />
	Stroke_Count = GetNumberOfStrokes( repeatstring);<br />
	for(  i = 0 ; i < times ; i++)<br />
	{<br />
		local_repeatstring = repeatstring;<br />
			for( int j = 0 ; j < Stroke_Count ; j++)<br />
			{<br />
				local_repeatstring2 = local_repeatstring;<br />
				ResetEvent(m_idle_event); // set it to non signal state ( red light )			<br />
				<br />
<br />
				PrintRedDebugMsg( "Waiting done");<br />
				m_serial.Write(Read_Out_Int(local_repeatstring2),1,0,0,10);  // 5000 ms timeout<br />
				local_repeatstring = Remove_Out_Int(local_repeatstring);<br />
<br />
		// let's wait 15 seconds for a response from OPC<br />
				SetTimer( 999 , 15000 , NULL);<br />
				WaitForSingleObject(m_idle_event , INFINITE); // after every .write command must contain this<br />
<br />
			}<br />
	}<br />
<br />
// ending script is here<br />
		Stroke_Count = GetNumberOfStrokes( endstring);<br />
<br />
<br />
<br />
	for(  i = 0 ; i < Stroke_Count ; i++)<br />
	{<br />
<br />
		local_repeatstring = endstring;<br />
<br />
<br />
		m_serial.Write(Read_Out_Int(local_repeatstring),1,0,0,10);  // 5000 ms timeout<br />
		startstring = Remove_Out_Int(startstring);<br />
<br />
		// let's wait 15 seconds for a response from OPC<br />
		SetTimer( 999 , 15000 , NULL);<br />
		WaitForSingleObject(m_idle_event , INFINITE); // after every .write command must contain this<br />
<br />
	}<br />
	PrintRedDebugMsg( "End of cycle reached");<br />
	return 0;<br />
}

there are also other functions in CycleSequence like m_serial.Write , Remove_Out_Int and Read_Out_Int and GetNumberOfStrokes
i did not include them here because i dont think they are causing the problem.

i believe the problem is the way i initalize stuff in cyclesequence and the way i do my loops

using:
- winxp
- VC++ 6.0
- MFC

Re: worker thread did not survive the release version - MFC

Xing Chen28-Feb-07 15:52

Xing Chen

28-Feb-07 15:52

Function UINT COpc_serialDlg::th_start_sequence(LPVOID lpvParam) must be static

Re: worker thread did not survive the release version - MFC

prasad_som28-Feb-07 17:56