C / C++ / MFC

Nishad S10-Oct-07 23:23

Nishad S

10-Oct-07 23:23

If you need to get the mouse messages without affecting its functionalities, you cant capture the mouse. That means if you capture the mouse then all the events will be towards you. You cant click anything in another window.

ashishbhatt wrote:
And From Your Reply...........

If you cant use a mouse hook. You will get enough articles here in CP regarding this.

Actually I meant, "If you cant do a mouse capture, then use a mouse hook" And CP means CodeProject.

- NS -

ashishbhatt11-Oct-07 1:37

ashishbhatt

11-Oct-07 1:37

Hello ,

I have tried with SetCapture() function , it works but it gives message only at first time i click on the desktop (or client Area which i have created as window using WNDCLASSEX and CreateWIndow()) and then i click on the disktop that msg does not come or my procedure does not catch it.

I am using window procedure to catch the message.

Plz Reply me.

Thanks....

Nishad S11-Oct-07 1:43

Nishad S

11-Oct-07 1:43

Can you explain your purpose?

- NS -

ashishbhatt11-Oct-07 2:00

ashishbhatt

11-Oct-07 2:00

Hi,

Let me explain in detail.

I have taken my MFC application.. OK. In that I have taken one Simple Class with diff .cpp and .h files(RTMPDesk.cpp). In this class I want to check that whenever click on desktop or any other client area than that message should be catch by Application.So, for that i created on window using WNDCLASSEX structure and Createwindow() function.And I catch messages in Window Procedure which i have created in RTMPDesk.cpp file.

So , iget only one time whenever i click on that created window.I want to check it for every time wenever i click on window.Ok....

I hope everythig is clear.

Plz help me.

Ashish

how to read the Red Green and Blue values from a bmp image file?

Nishad S11-Oct-07 18:03

Nishad S

11-Oct-07 18:03

OK... my doubt is that whether you want to block the mouse click to other windows when your application is running? Or only you need to get the event, but the other applications should get the click as usual?

For the first case, you can make a top level transparent window which covers the whole desktop, so all the mouse events will be sent to this transparent window.

For the second case, AFAIK, only mouse hooking is a solution.

- NS -

purplee8510-Oct-07 20:48

purplee85

10-Oct-07 20:48

Hi everyone...

totally clueless abt how to write a C++ program to return the RGB values of an image!! Can anyone help?

Re: how to read the Red Green and Blue values from a bmp image file?

Nelek10-Oct-07 20:51

Re: how to read the Red Green and Blue values from a bmp image file?

10-Oct-07 20:51

CDC::GetPixel  <br />
COLORREF GetPixel( int x, int y ) const;<br />
COLORREF GetPixel( POINT point ) const;<br />

<br />
::GetPixel ()<br />
COLORREF GetPixel(<br />
  HDC hdc,   // handle to device context<br />
  int XPos,  // x-coordinate of pixel<br />
  int nYPos  // y-coordinate of pixel<br />
);<br />

will help you

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

Help me to understand what I'm saying, and I'll explain it better to you

Wink | ;)

purplee8510-Oct-07 20:55

purplee85

10-Oct-07 20:55

Thanks...

How to implement this function in a program to read pixel values from a bmp image(eg. purple.bmp)?
Is it ok for you to show me a sample of how this works?

With regards,
Purplee

Re: how to read the Red Green and Blue values from a bmp image file?

Nelek10-Oct-07 22:43

10-Oct-07 22:43

To make an example would be large and, actually, your work.

Try it and post when you have problems, start looking in the codeproject and google, there are examples for sure.

Good luck

Vectors!

Michael10110-Oct-07 20:17

Michael101

10-Oct-07 20:17

Hey,

I have a for loop iterating through a Vector. When my program hits certain conditions it needs to do get the value of an element and add one to it.

I tried this but it didn't work:

PrimeNumber(Iter + 1) += 1;

It has to be the next element in the vector and it has to increment that next elements value by one! I've tried declaring an Iterator and using similar code -> *Iter + 1 += 1; but that still doesn't work Frown | :-(

Does anyone have any ideas on how to modify the content of a vector? Thanks for all the help in advance I appreciate it!

Smile | :)

Michael

Re: Vectors!

Nibu babu thomas10-Oct-07 20:28

10-Oct-07 20:28

Michael101 wrote:
using similar code -> *Iter + 1 += 1; but that still doesn't work

*(Iter + 1) += 1;

Nibu thomas
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

Re: Vectors!

Michael10110-Oct-07 20:29

Michael101

10-Oct-07 20:29

You Champion! Big Grin | :-D

Re: Vectors!

Nibu babu thomas10-Oct-07 20:32

Attach the caption of the child window to the Frame

10-Oct-07 20:32

Make sure you don't go beyond/access vector<>::end() when doing +1.

Nibu thomas
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

prithaa10-Oct-07 20:04

prithaa

10-Oct-07 20:04

Hello,

How can I attach child window's caption to the frame window in the OnSize() Function?

Right when I maximize the child window it gets maximized without actually the caption getting merged with te frame window.
This is the code in the OnSize()
switch(nType)
{
case SIZE_MAXIMIZED :
{
CRect R;
GetParentFrame()->GetClientRect(R);
MoveWindow(R,true);
break;
}
}

Regards
Prithaa

Re: Attach the caption of the child window to the Frame

Nibu babu thomas10-Oct-07 20:06

Re: Attach the caption of the child window to the Frame

10-Oct-07 20:06

prithaa wrote:
Right when I maximize the child window it gets maximized without actually the caption getting merged with te frame window.

It's already being done for you if you are using DocView architecture by MFC.

Nibu thomas
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

prithaa10-Oct-07 20:24

prithaa

10-Oct-07 20:24

Hello,

Thanks.
No I am nt using Doc -View Architecture and the caption doesn't get merged with the frame window.

What should be done?

Prithaa

Re: Attach the caption of the child window to the Frame

Nelek10-Oct-07 20:49

Re: Attach the caption of the child window to the Frame

10-Oct-07 20:49

Take a look in BOOL CChildFrame::PreCreateWindow(CREATESTRUCT& cs) . There is where I defined the captions for the "seconday views" on my project.

prithaa10-Oct-07 21:44

prithaa

10-Oct-07 21:44

Hello,

Thanks for your reply.

I have the caption initially when the window is created but when I maximize the child window the caption does not appear alongwith the frame window .
What should be done?

Prithaa

Re: Attach the caption of the child window to the Frame

Nelek12-Oct-07 1:52

How "Winmain()" works in MFC? and From where it is called?

12-Oct-07 1:52

When you maiximize a chil window, it loses its own caption, and share the main frame caption, another thing is to fit the child window to the whole client area of the parent, but maximizing... nothing to do.

Sethuraman.K10-Oct-07 19:50

Sethuraman.K

10-Oct-07 19:50

I want to know How Winmain() functions working nature. Also, I want to know from where it is get called?

Sethuraman.K

Re: How &quot;Winmain()&quot; works in MFC? and From where it is called?

Nibu babu thomas10-Oct-07 20:01