C / C++ / MFC

7-Jun-09 23:55

I have handlw to that window

Trioum

modified on Friday, June 12, 2009 2:03 AM

Nibu babu thomas8-Jun-09 0:07

Nibu babu thomas

8-Jun-09 0:07

trioum wrote:
how can we send a ctrl+V message to window .I have handlw to that window

You can use WM_PASTE, if it's an edit control, directly and your intention is to paste some text from clipboard. Also you can try SendInput[^].

Nibu babu thomas
Microsoft MVP for VC++

Code must be written to be read, not by the compiler, but by another human being.

Programming Blog: http://nibuthomas.wordpress.com

[Message Deleted]

trioum8-Jun-09 0:17

8-Jun-09 0:17

[Message Deleted]

Rajesh R Subramanian8-Jun-09 0:26

8-Jun-09 0:26

You should not be doing such a thing though, you've been asking it for something like a month here. So...

Send key-stroke messages in this order:

Control (Key down)
S (key down)
S (key up)
Control (Key up)

It is a crappy thing, but it's life -^ Carlo Pallini

[Message Deleted]

trioum8-Jun-09 1:59

8-Jun-09 1:59

[Message Deleted]

Rajesh R Subramanian8-Jun-09 2:06

Re: send message to window [modified]

8-Jun-09 2:06

trioum wrote:
send me chunck of code

WRITE IT YOURSELF!

Use PostMessage[^] with WM_KEYDOWN[^], WM_KEYUP[^] to send normal key press event.

Similarly use WM_SYSKEYDOWN[^] and WM_SYSKEYUP[^] for sending a CTRL key press event.

It is a crappy thing, but it's life -^ Carlo Pallini

trioum8-Jun-09 2:32

8-Jun-09 2:32

Trioum

modified on Friday, June 12, 2009 2:01 AM

Rajesh R Subramanian8-Jun-09 2:57

Re: send message to window [modified]

8-Jun-09 2:57

How would I know what were you doing? Is it difficult for you to show me your code?

It is a crappy thing, but it's life -^ Carlo Pallini

trioum8-Jun-09 3:04

Re: send message to window [modified]

8-Jun-09 3:04

ok I use

Trioum

modified on Friday, June 12, 2009 2:01 AM

trioum9-Jun-09 18:53

Output of the simple question [modified]

9-Jun-09 18:53

yet i solve my problem

Trioum

modified on Friday, June 12, 2009 2:02 AM

shubhi7-Jun-09 23:44

shubhi

7-Jun-09 23:44

Hi,
what would be the output of following code:

main()
{
int a=1;
printf ("%d", a+=(a+=3,5,a));
}

In VC++ it is showing output: 8
In AS/400’s C showing output: 5

If it is complier dependent, plz tell me the logic of both the answers.

"We can't solve problems by using the same kind of thinking we used when we created them"

modified on Monday, June 8, 2009 6:08 AM

CPallini8-Jun-09 0:19

CPallini

8-Jun-09 0:19

IMHO VC++ answer makes sense.

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

molesworth8-Jun-09 0:38

molesworth

8-Jun-09 0:38

It's a correct answer, but maybe not what was intended.

It seems to be evaluating it as ((a+=3), 5, a) and returning the new value of 'a' (the AS/400 compiler returns the old value of 'a' I think).

I'll have to find a precedence table, as I'd have expected it to be (a += (3, 5, a)), which would give a different result (4)...

edit : looks like the assignment has higher precedence, according to MSDN. You learn something new every day Smile | :)

There are three kinds of people in the world - those who can count and those who can't...

Rajesh R Subramanian8-Jun-09 0:21

8-Jun-09 0:21

int <font color=red>a</font> = 1;

a += ( <font color=red>a</font>+= 3, <font color=gray>5, a</font> );

a += ( <font color=red>a</font>+= 3 ); //(Anything after the first comma will be ignored by the compiler. See <a href="http://msdn.microsoft.com/en-us/library/t29e07xd(VS.80).aspx">Sequential evaluation operator</a>[<a href="http://msdn.microsoft.com/en-us/library/t29e07xd(VS.80).aspx" target="_blank" title="New Window">^</a>]

a += ( a = <font color=red>a</font>+3) //but a was delcared 1, so the expression <font color=red>a</font>=1+3 makes RHS value as 4.

a += a; //But <font color=red>a</font> is 4 now before executing this statement.
        //Therefore adding another 4, the resultant  a = 8. Makes perfect sense to me.

shubhi wrote:
In AS/400’s C showing output: 5

Then that compiler sucks.

It is a crappy thing, but it's life -^ Carlo Pallini

Re: Output of the simple question [modified]

shubhi8-Jun-09 0:40

shubhi

8-Jun-09 0:40

But according to sequential Evaluation:
say If,

a=(b+=2,5,2)

then it will evaluate b+=2 but a will get the value 2, as I m using the braces here.

So i think in my question it is evaluating the a+=3 but finally it is resulting the value of last argument.

a += ( a+= 3, 5, a ); //a=1
a += ( a );//a=4

kindly correct me know if I m wrong.

"We can't solve problems by using the same kind of thinking we used when we created them"

Rajesh R Subramanian8-Jun-09 0:48

8-Jun-09 0:48

shubhi wrote:
then it will evaluate b+=2 but a will get the value 2, as I m using the braces here.

You're right there.

shubhi wrote:
a += ( a+= 3, 5, a ); //a=1

Yes, the value of a(the last within the braces) is 1, so adding 3 to it makes it 4. And then there is an a+=a. Therefore 8.

It is a crappy thing, but it's life -^ Carlo Pallini

modified on Monday, June 8, 2009 7:04 AM

CPallini8-Jun-09 0:57

CPallini

8-Jun-09 0:57

Rajesh R Subramanian wrote:
a cannot get the value 2, because the expression b+=2 will be executed before it is assigned to a, for the very reason that it is inside braces. Therefore, the value of a would be b+2.

I think you're wrong, here (and the OP question was indeed more subtle than I origianlly understood).
Smile | :)

Rajesh R Subramanian8-Jun-09 1:02

8-Jun-09 1:02

Yes, that was subtle indeed. Modified my answer. Blush | :O

It is a crappy thing, but it's life -^ Carlo Pallini

Re: Output of the simple question [modified]

Anoop Dashora8-Jun-09 1:14

Anoop Dashora

8-Jun-09 1:14

Just to add
For eg we have
e1 , e2
Here ',' act as operator which will ``evaluate the subexpression e1, then evaluate e2; the value of the expression is the value of e2.

So for a+=(a+=3,5,a) it will have as:-
a+=(4,5,4)// since a=a+3
So in all a=8.

But not sure of AS/400 C Compiler. Might be it is evaluating as:-

a+=(a+=3.5,a)
a=a+(a=a+3,5,a)
a=1+(4,5,4)
a=5 // But i am not sure with this explanation.

CPallini8-Jun-09 1:32

CPallini

8-Jun-09 1:32

Anoop Dashora wrote:
But not sure of AS/400 C Compiler. Might be it is evaluating as:-

a+=(a+=3.5,a)
a=a+(a=a+3,5,a)
a=1+(4,5,4)
a=5 // But i am not sure with this explanation.

You could generate the assembly and have a look at it, couldn't you?

[added]
Probably you can't, since you're not the OP... Big Grin | :-D

[/added]

Rajesh R Subramanian8-Jun-09 1:15