C / C++ / MFC

Can a console application use Message IPC for broadcasting to other process(Not windows)

28-Mar-07 4:01

   Capturing the mouse means that all of its movement and click-related messages gets sent to a particular window/control even if the mouse is not over that control. For example, if you click and hold down the mouse button on a normal button control, and while holding it down, move the mouse over an edit control, the mouse cursor will not (or is not supposed to) change to an "I-Bar". This is because the button control has "captured the mouse" when you clicked-down on it, so the other controls will not react to it.

   (As an aside, correct mouse capture is a hard thing to get working correctly in some 3rd-party GUI libraries.)

   It sounds like you want to just know when the mouse of over your image? If so, the control used to display the image (if you are not drawing it indirectly yourself) should get WM_MOUSEMOVE messages when the mouse moves over the control, and you can get the cursor location at that point to determine where in the image the mouse is located at.

   Peace!

-=- James
Please rate this message - let me know if I helped or not!<HR>If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong!
Avoid driving a vehicle taller than you and remember that Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road!
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param_nirvana28-Mar-07 0:35

Re: Can a console application use Message IPC for broadcasting to other process(Not windows)

28-Mar-07 0:35

I'm trying to use Message IPCs (PostMessage and GetMessage) to broadcast a message from one process to other processes. These are plain console process without Windows.

I was wondering if it is possible at all to do so.
Here is the code snap, which broadcasts message and then rcv in same process. First i'm trying to do it in same process to check if it works at all?

int main()
{
UINT uTestMsg; // message identifier
uTestMsg = RegisterWindowMessage("mess");
PostMessage(HWND_BROADCAST, uTestMsg , 0, 0);
Sleep(100);

BOOL bRet;
MSG msg;

while(1)
{
bRet = GetMessage( &msg, NULL,0,0);
cout << endl <<"bRet = " << bRet << endl;
}
return 0;
}

param_nirvana28-Mar-07 0:59

Re: Can a console application use Message IPC for broadcasting to other process(Not windows)

28-Mar-07 0:59

Any one??

James R. Twine28-Mar-07 2:33

Re: Can a console application use Message IPC for broadcasting to other process(Not windows)

28-Mar-07 2:33

param_nirvana wrote:
I'm trying to use Message IPCs (PostMessage and GetMessage) to broadcast a message from one process to other processes. These are plain console process without Windows.

   Well, generally in order to send a message, you need to send it somewhere. This is usually some kind of window. In order to receive a message, you need a message pump that is associated with... you guessed it! A window!

   Your console application(s) (if you have the source code for them), can create an invisible window with a specific class and/or name so you can locate them and send them messages.

   You may want to look into other IPC mechanisms such as named pipes or a shared memory area (memory mapped file backed by the paging file). No, I cannot provide source code for this, or take the place of a simple CodeProject, Google or MSDN search for the terms: Named Pipe, but you have a place to start.

   Oh, and be patient when waiting for a response - the people that help out here do not get paid to help you out, we do so at our pleasure, not yours. If you want to demand things, feel free to pay for the right to do so. (And my short-term rates start at $80/hour with a 4-hour minimum, and that includes the CP-Newbie discount. Smile | :)

)

Peace!

Nibu babu thomas28-Mar-07 2:41

Nibu babu thomas

28-Mar-07 2:41

James R. Twine wrote:
And my short-term rates start at $80/hour with a 4-hour minimum, and that includes the CP-Newbie discount.

What about other's. Wink | ;)

Nibu thomas
A Developer

Programming tips[^] My site[^]

Re: Can a console application use Message IPC for broadcasting to other process(Not windows)

James R. Twine28-Mar-07 3:02

Re: Can a console application use Message IPC for broadcasting to other process(Not windows)

28-Mar-07 3:02

Depends on time, scope and services required, of course! Laugh | :laugh:

Oh, and if I get along with them as well. There is always the possibility of an attitude discount (or charge!) Smile | :)

Peace!

param_nirvana28-Mar-07 3:25

Re: Can a console application use Message IPC for broadcasting to other process(Not windows)

28-Mar-07 3:25

Thanks James.

I better switch to traditional IPC mechanism than trying to play with Bill Gates' brain Wink | ;)

I beat you all in rates. $5/hr. Free Support and 24x7 availability. You won't find such cheap rates north of Thames.

Shout if you need my services

Cheers
Nirvana

param_nirvana28-Mar-07 3:27

Re: how to load bit map [modified]

28-Mar-07 3:27

Cheers mate!!
I rate you 5 for your valuable answer and not to mention priceless time Smile | :)

how to load bit map

birajendu28-Mar-07 0:16

birajendu

28-Mar-07 0:16

Hi I am using LoadBitmap() to load a bitmap,but it was not showing the actual resolution when the application runs. Is there any other method to load the bitmap with out affecting the resolution.

Thanx in advance....

birajendu
CyberG India
Delhi
India

_AnsHUMAN_ 28-Mar-07 2:10

_AnsHUMAN_

28-Mar-07 2:10

Go to the resource editor. Right click the bitmap and go to properties. In the color property change 16 to 256 or true color and then you would be able to use the bitmap.

Since as per your query it seemed that you were having a problem with the displaying of the bitmap in destorted form, try this.

I hope this helps
-- modified at 8:22 Wednesday 28th March, 2007

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

How to display CRW files as thumbnails on List View

vasu_sri27-Mar-07 23:07

vasu_sri

27-Mar-07 23:07

i have CRW, CR2 files in the hard disk.... but i cant display on view ..

i displayed bmp,png,gif files as thumb nails

actually CRW and CR2 are camera files ... but i want to display on ListView...means(main view) ...

if u have any idea please tell me ....

Regards,
Srinivas

Re: How to display CRW files as thumbnails on List View

James R. Twine28-Mar-07 2:34

28-Mar-07 2:34

If you are unable to render the files in their native format, you might want to be looking into finding some kind of conversion utility to convert them into a format you can use.

Peace!

"adding tones"

harsh_296127-Mar-07 23:06

27-Mar-07 23:06

hi,

Mine is a phone like application and on an incoming call i should play some tone so that user can know that there is an incoming call.. Can anybody let me know the simplest way of doing it with minimum lines of code ?

Harsha

James R. Twine28-Mar-07 2:37

28-Mar-07 2:37

Look up the PlaySound(...) function in MSDN - that will give you an example of how to play a sound using a small amount of code.

Peace!

harsh_296128-Mar-07 19:52

28-Mar-07 19:52

Can i know how to use this Playsound()?

if you know about some project where this function is used please let me know as it will give me idea about what all to be used along with the function..

i searched for this but i am not getting anything satisfactory to make this function work

Harsha

prasad_som28-Mar-07 20:30

prasad_som

28-Mar-07 20:30

harsh_2961 wrote:
i am not getting anything satisfactory to make this function work

Doesn't this[^] example satisfies you ?

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

harsh_296128-Mar-07 21:13

28-Mar-07 21:13

i am using the same line of code as mentioned in your link
but its giving an errors saying

"1. error C2065: 'SND_FILENAME' : undeclared identifier;
2. error C2065: 'SND_SYNC' : undeclared identifierError;
3. error C2065: 'SND_APPLICATION' : undeclared identifier;
4.error C3861: 'PlaySound': identifier not found;"

Do i have to include anything else..? please let me know what all i have to include.. if i have to include any library files please send me thet file too if you have

Harsha

prasad_som28-Mar-07 21:31

prasad_som

28-Mar-07 21:31

harsh_2961 wrote:
Do i have to include anything else..? please let me know what all i have to include.

I tempted to tell you that,
but it will definitely hamper your growth as professional. No offense intended. But,consider this as advice, MSDN is best soultion to 90 % of problems. But, you are not using it at all. And its very annoying, if you are asking such a question, that could be easily solved on your own. it makes clear that, you dont want/or dont have time to read carefully. Learn to explore things on your own, this is how you will catch up the fast changing technologies.

In this particular case, all information about compatibility of API will be avilable at Requirements section, down below in MSDN description of that API.

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

harsh_296128-Mar-07 21:39