Re: how to call a function a scheduled time? - C / C++ / MFC Discussion Boards

Re: SetDiBitsToDevice()

C^hris L^osinger6-Nov-06 3:19

C^hris L^osinger

6-Nov-06 3:19

with most DIB funcitons, you can just give a negative value for DIB height, to flip the output.

it's worth a try..

image processing | blogging

Re: SetDiBitsToDevice()

Waldermort6-Nov-06 3:35

Waldermort

6-Nov-06 3:35

I tried, without success Frown | :(

, I also tried modifying the other params and creating the DIB with a negative height, but so far nothing has worked.

Here is the function call.

SIZE size = { _x2 - _x1, _y2 - _y1 };
//  SIZE size = GetSize();
    POINT SrcOrigin = {0,0};
    ::SetDIBitsToDevice(
        hdc, 
        _x1, _y1, 
        size.cx, size.cy,
        SrcOrigin.x, SrcOrigin.y,
        SrcOrigin.y, size.cy - SrcOrigin.y, 
        m_ppvBits, m_DIBinfo, 
        m_iColorDataType );

If I swap the commented line, it works fine, but it draws the full sized bitmap which is not what I want.

Re: SetDiBitsToDevice()

Waldermort6-Nov-06 4:11

Waldermort

6-Nov-06 4:11

No matter, I managed to get it working correctly.

SIZE size = GetSize();
POINT SrcOrigin = {0,size.cy - (_y2-_y1) };
::SetDIBitsToDevice(
    hdc, 
    _x1, _y1, 
    _x2-_x1, _y2-_y1,
    SrcOrigin.x, SrcOrigin.y,
    0, size.cy, 
    m_ppvBits, m_DIBinfo, 
    m_iColorDataType );

seems I had some of the paramaters a little messed up.

how to call a function a scheduled time?

Banks K6-Nov-06 3:03

Banks K

6-Nov-06 3:03

now i am able to execute a exe at scheduled time.

but i have to call a function at scheduled time.

suppose a service starts and at scheduled time, can i call a function of that service which is allready running by using task scheduler.

if any have idea please share with me.

thanks & regards
bankey

Re: how to call a function a scheduled time?

benjymous6-Nov-06 3:24

benjymous

6-Nov-06 3:24

It sounds like you want two exes

A) Your service
B) A helper app that sends a message to (A) and tells it to perform its function

The two can talk using inter process communication[^]

--
Help me! I'm turning into a grapefruit!
Buzzwords!

Re: how to call a function a scheduled time?

David Crow6-Nov-06 3:59

David Crow

6-Nov-06 3:59

Banks K wrote:
but i have to call a function at scheduled time.

Set up a timer via SetTimer(). As each WM_TIMER message is received, check the current time with the scheduled time. If they match, call the function.

Banks K wrote:
...can i call a function of that service which is allready running by using task scheduler.

No.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Re: how to call a function a scheduled time?

led mike6-Nov-06 4:27

led mike

6-Nov-06 4:27

Banks K wrote:
at scheduled time, can i call a function of that service which is allready running by using task scheduler.

I don't understand. A "service which is allready running" would be a process. One process cannot "call functions" in another process. Please be specific when asking questions so we have any clue how to answer.

led mike

Re: how to call a function a scheduled time?

prasad_som6-Nov-06 19:05

prasad_som

6-Nov-06 19:05

Banks K wrote:
suppose a service starts and at scheduled time, can i call a function of that service which is allready running

For this you need to have interfaces exposed on that service.

Banks K wrote:
by using task scheduler.

AFIK, taskscheduled runs only executables at scheduled time. You can access interfaces exposed by service in an executables, call required functions and schedule that exe using task schedular.

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

Re: how to call a function a scheduled time?

Blake Miller7-Nov-06 3:53

Blake Miller

7-Nov-06 3:53

If the service can know when to execute the function, then look into using:
The SetWaitableTimer function activates the specified waitable timer. When the due time arrives, the timer is signaled and the thread that set the timer calls the optional completion routine.

Any sufficiently gross incompetence is nearly indistinguishable from malice.

Please help !

Bravoone_20066-Nov-06 3:01

Bravoone_2006

6-Nov-06 3:01

iHave a CDialog and i want to start my dialog maximized how ? because my dialog is minimized it is small and i don t want to push the buton "maximized" !
Smile | :)

Bravoone

Re: Please help !

pgirish6-Nov-06 3:58

pgirish

6-Nov-06 3:58

During Creation Override OnInitDialog function and
add this ModifyStyle(0, WS_MAXIMIZE); to your code.

Like

void CMyDialog::OnInitDialog()
{
CDialog::OnInitDialog();
ModifyStyle(0, WS_MAXIMIZE);
}

Re: Please help !

Hamid_RT6-Nov-06 18:32

Hamid_RT

6-Nov-06 18:32

You can use of ShowWindow(SW_MAXIMIZE)

WhiteSky

Re: Please help !

Bravoone_20066-Nov-06 19:22

Bravoone_2006

6-Nov-06 19:22

THANKS GUYS !!!!
ShowWindow(SW_MAXIMIZE) IS WORKING !!!!
Smile | :)

Bravoone

Re: Please help !

Hamid_RT6-Nov-06 20:27

Hamid_RT

6-Nov-06 20:27

Glad you found it Smile | :)

WhiteSky

Copy to clipboard problem.

rrrado6-Nov-06 2:50

rrrado

6-Nov-06 2:50

I need to copy some string to the clipboard.
This is the code I use:

handle = GlobalAlloc(GMEM_MOVEABLE,text.GetLength()+1);
if (handle)
{
    if (OpenClipboard(hWnd) && EmptyClipboard() )
    {
        out = (char*)GlobalLock(handle);
                    // this fails sometimes (out=NULL)

My code sometimes fail at out = (char*)GlobalLock(handle);
GlobalLock returns NULL and GetLastError() = 6 (invalid handle).

Any ideas why ?
Is there more reliable code for copying to clipboard ?

Thank you!

rrrado

Re: Copy to clipboard problem.

cje6-Nov-06 9:40

cje

6-Nov-06 9:40

I ran across the following code in one of our projects - not sure if it will help you or not

<br />
HGLOBAL hData = 0;<br />
// open memory file<br />
CSharedFile clipb (GMEM_MOVEABLE|GMEM_DDESHARE|GMEM_ZEROINIT);<br />
clipb.Write(cstrString, cstrString.GetLength()*sizeof(TCHAR));<br />
clipb.Write(_T("\0"), sizeof(TCHAR));<br />
hData = clipb.Detach();<br />
// Now, hand over memory block to clipboard<br />
if (hData)<br />
{<br />
   VERIFY(OpenClipboard());<br />
   SetClipboardData(CF_TEXT, hData);<br />
   VERIFY(CloseClipboard());<br />
}<br />

cje

Re: Copy to clipboard problem.

rrrado7-Nov-06 21:21

rrrado

7-Nov-06 21:21

Thank you. I think I've fouind the problem - I was releasing the memory after SetClipboardData which caused the problems.

rrrado

shared data segment

Abhi Lahare6-Nov-06 2:17

Abhi Lahare

6-Nov-06 2:17

Hi all,

I have two dll
1)DLLHook- global hook dll
2)BHODLL- a BHO dll

and a server application
3) DlgApp

in DLL hook i have
#pragma data_seg(".shared")
map<_tstring,_tstring> g_map;
// Other objects
##pragma comment(linker, "/section:.shared,RWS")

In DlgAPP, I am inserting some values in map.
Now I have to use these value in BHODLL.

While I debug the BHO, i do not see and values in the map. As per my understanding the global data section will be avaible in all the process after installing hook.so the map should be avaible in BHO code.

Is these possible? or I am doing something wrong?

Thanks in advance.
Regards
Abhi Lahare

Re: shared data segment

John M. Drescher6-Nov-06 2:28

John M. Drescher

6-Nov-06 2:28

That can not work. This is because a map is allocates memory on the heap which does not work using shared data segments because the heap is not part of the shared data segment. You need to use a structure that at compile time allocates the maximum storage necessary and does this in the shared data segment.

John

Re: shared data segment

Blake Miller7-Nov-06 3:54

Blake Miller

7-Nov-06 3:54

Or create a memory mapped file and don't use a shared data segment at all...

Any sufficiently gross incompetence is nearly indistinguishable from malice.

Customized CPropertyPage

Ajay L D6-Nov-06 2:12

Ajay L D

6-Nov-06 2:12

Hi,
I want to create vertical tab pages, with bitmap images on the title of each property page, using CPropertyPage. Can anyone tell me how to do this? I tried to paint on the title of the page, but do not know from which place should I do this.

AJ

Re: Customized CPropertyPage

PJ Arends6-Nov-06 8:02

PJ Arends

6-Nov-06 8:02

By 'title' do you mean the tab that you click on to select the page?

If so then you can do this from the CPropertySheet class. Use CPropertySheet::GetTabControl() to get a pointer to the tab control, you can then use the CTabCtrl member functions to do what you want, including custom drawing the tabs.

You may be right
I may be crazy
-- Billy Joel --

Within you lies the power for good, use it!!!

Re: Customized CPropertyPage

Ajay L D6-Nov-06 21:43

Ajay L D

6-Nov-06 21:43

Thanks a lot!! You made my day!

AJ

about DMA

mt_samiei6-Nov-06 2:09

mt_samiei

6-Nov-06 2:09

Hi all

Is there any one who knows which dma is assigned to which hardware.
I want to extract the DMA channel for Parallel port.
Best Ragards
Mahdi

CoInitializeEx()

shadrach_india6-Nov-06 2:08

shadrach_india

6-Nov-06 2:08

Hi All

i need to call this CoInitializeEx() in my application. compiler giving error msg this

error C2065: 'CoInitializeEx' : undeclared identifier

i have include the respective heaer file "objbase.j"

what i have to do compile ?

thanks

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