C / C++ / MFC

15-Aug-05 23:40

Hello Friends

I have an application in which I need to start one exe from another one and at the end when the first one ends, it should automatically end the second one.

To start I use ShellExecute() or WinExec() function. And to terminate the another exe I put code into the destructor of the first one from where I have started it. But the problem is I don't know the Handle of the new exe that I have started using ShellExecute() or WinEec().....

Is there any functions which can give me the Handle of a perticular window or is there any other way to stop the application without knowing the handle or process id ?

Thankx in advance

My Code Looks Like :
-------------------
My first.exe file
================
MyClass()
{
// Do some work here........

WinExec("C:\\Temp\\second.exe",SW_SHOW);
// Do some work here...
};

~MyClass()
{
Here I want to kill(Terminate) the second.exe
}

Any help plz ?

Thankx
}

}

Amarelia Maehsh
Gujarat
India

mark novak16-Aug-05 0:32

mark novak

16-Aug-05 0:32

You could use CreateProcess() and TerminateProcess(), however TerminateProcess() ends a program so abruptly that some applications don't handle it well, it doesn't give them time to save their settings or other exit code. I'd recommend using FindWindowEx() and sending a WM_CLOSE to the main window.

Trollslayer16-Aug-05 1:27

Trollslayer

16-Aug-05 1:27

PostQuitMessage is another way.

The tigress is here Big Grin | :-D

David Crow16-Aug-05 4:17

16-Aug-05 4:17

Not a good idea if handling other messages during shutdown is a concern. Call PostMessage(WM_CLOSE) instead. PostQuitMessage() does not shut down an application properly as other messages might be initiated by the shutdown operation (e.g., save the document?) and those messages, along with any other messages that might be in the queue, will not be processed.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Trollslayer16-Aug-05 7:56

Trollslayer

16-Aug-05 7:56

Thank you David, that's well worth knowing.

Elaine Rose | [Rose]

The tigress is here Big Grin | :-D

Amarelia16-Aug-05 18:12

16-Aug-05 18:12

Thankx for taking time to read my question...

Amarelia Maehsh
Gujarat
India

Amarelia16-Aug-05 18:13

16-Aug-05 18:13

Thankx a lot for giving attention to my question ....

Amarelia Maehsh
Gujarat
India

David Crow16-Aug-05 4:09

16-Aug-05 4:09

Amarelia wrote:
But the problem is I don't know the Handle of the new exe that I have started using ShellExecute()...

Why not? It's in the PROCESS_INFORMATION structure that ShellExecute() populates.

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

Amarelia16-Aug-05 18:11

16-Aug-05 18:11

Thank you very much

I did the same but bit differently. I used CreateProcess() and in that there is last parameter as [out] parameter which is PROCESS_INFORMATION structure and I use that to close application.

thankx once again

Amarelia Maehsh
Gujarat
India

David Crow17-Aug-05 2:08

Checking the type of mouse in Win32

17-Aug-05 2:08

I'm glad you figured it out because my suggestion was wrong. I meant to say CreateProcess() not ShellExecute().

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

SanjaySMK15-Aug-05 23:36

SanjaySMK

15-Aug-05 23:36

How to check the type of the mouse using Win32? Is there any API? Please help.

Software Developer
Sanjay Khapre

Re: Checking the type of mouse in Win32

mark novak16-Aug-05 0:27

mark novak

16-Aug-05 0:27

You can get some of the properties using GetSystemMetrics().

SM_CMOUSEBUTTONS will get you the number of buttons.
SM_MOUSEWHEELPRESENT will tell you if it has a wheel.
SM_SWAPBUTTON will tell you if they swapped their buttons (left handed).

How to set image DPI

a_du15-Aug-05 23:28

a_du

15-Aug-05 23:28

I have created a bmp file.
Using CImage can load the file and save as a another file format like tiff, but how can i set the DPI of the image.
Please help, thanks.

Re: How to set image DPI

C^hris L^osinger16-Aug-05 4:00

C^hris L^osinger

16-Aug-05 4:00

the BITMAPINFOHEADER struct at the beginning of the BMP has DPI members. set them with the values you want.

Cleek | Image Toolkits | Thumbnail maker

Problem with list control

zhaopi15-Aug-05 22:26

zhaopi

15-Aug-05 22:26

I am declaring a list and add in contents into it~
But i am always unpredictably facing the display problem~
For example, i am reading information from a database entry by entry, but what is displayed in the list control is totally out of order, and correspondance is wrong. what is worse, some of the colums are blank though i can see the entries are correctly inserted into the list(i have traced this using break point).

The code i used is as below:

(m_bList is the list control declared)

int index;<br />
for(index = 0; index < total; index++)<br />
{<br />
LV_ITEM lvi;<br />
lvi.mask = LVIF_TEXT;<br />
<br />
lvi.iItem = index;<br />
lvi.iSubItem = 0;<br />
lvi.pszText = (LPSTR)(LPCSTR)sbatchid;<br />
lvi.lParam = 1;<br />
m_bList.InsertItem(&lvi);	<br />
<br />
lvi.iSubItem = 1;<br />
lvi.pszText = (LPSTR)(LPCSTR)page;m_bList.SetItem(&lvi);<br />
		<br />
CString modi = time.Format("%Y/%m/%d/%H:%M");<br />
<br />
lvi.iSubItem = 2;<br />
lvi.pszText = (LPSTR)(LPCSTR)modi;<br />
m_bList.SetItem(&lvi);<br />
}

Rage15-Aug-05 23:16

15-Aug-05 23:16

zhaopi wrote:
what is displayed in the list control is totally out of order

First thought (without reading your code) have you disabled the "Sorted" option of the list control ?

~RaGE();

Rage15-Aug-05 23:32

15-Aug-05 23:32

Second thought, after reading the code :

It is a safe thing to zero the LVITEM struct (you wrote LV_ITEM, but it is in fact LVITEM) before using it.

LVITEM lvi;
ZeroMemory(&lvi,sizeof(lvi));

It is also not a bad idea to check for the result of the InsertItem and SetItem functions before going on.

Last thing to do is maybe to prevent updating the control before it is entirely full, or use virtual list if you are dealing with database entries (search on Code Project for virtual lists).

But the code seems OK to my point of view. You should really check that the Sort ComboBox in the Properties of the control is set on "None" (in the VC++ Dialog Editor). Or programatically unset the LVS_SORTASCENDING and LVS_SORTDESCENDING window styles of the control.

~RaGE();

zhaopi16-Aug-05 0:42

zhaopi

16-Aug-05 0:42

Thanks for your reply first~
I have checked the sort combobox, unfortunately it is set to none.

For the result of insertitem, it is always returning 0 which seems to be fine~
and the setitem function is returning 1 for successful.

And how should i use zeromemory function, since it seems to be deleting the LVITEM and all the items are failed to be displayed in the list~

Rage16-Aug-05 2:38

16-Aug-05 2:38

zhaopi wrote:
And how should i use zeromemory function, s

For initialisation of your lvi variable. Use it just once, after the variable definition:

LVITEM lvi;
ZeroMemory(&lvi,sizeof(lvi));

Now you can use lvi safely.

~RaGE();

David Crow16-Aug-05 4:23

16-Aug-05 4:23

How about:

for (int index = 0; index < total; index++)
{
    int item = m_bList.InsertItem(index, 0, sbatchid);
    m_bList.SetItemText(item, 1, page);
    m_bList.SetItemText(item, 2, time.Format("%Y/%m/%d/%H:%M"));
}

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

zhaopi16-Aug-05 15:42

zhaopi

16-Aug-05 15:42

it works,
but i really cannot see what is the difference between your method and mine~
Can explain a little bit~?
Thanks

Rage16-Aug-05 20:58