GetAncestor api in VC++ 6 - C / C++ / MFC Discussion Boards

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Re: Undo/Redo help required...

Anonymous10-Dec-03 1:35

Anonymous

10-Dec-03 1:35

Look at the command pattern here:
http://www.codeproject.com/cpp/undoredo_cpp.asp?target=undo%7Ccommand

Re: Undo/Redo help required...

Anonymous10-Dec-03 1:37

Anonymous

10-Dec-03 1:37

http://www.codeproject.com/cpp/undoredo_cpp.asp

Re: Undo/Redo help required...

David Crow10-Dec-03 3:26

David Crow

10-Dec-03 3:26

While both of your replies contained the right text, the underlying links were wrong. Did you try them out?

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

Re: Undo/Redo help required...

David Crow10-Dec-03 3:30

David Crow

10-Dec-03 3:30

One way that I've seen it done is to keep a list of each changed document. In other words, each time the document is changed, a copy is kept in a list. When an undo is requested, the latest document in the list is "copied" over the current document, and the view is notified to do a redraw. This is very simplistic but I think you get the general idea.

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

Re: Undo/Redo help required...

Anonymous10-Dec-03 18:54

Anonymous

10-Dec-03 18:54

step 1. firstly identify the type of operations for which you like to have undo facility.

step 2. create a CUndo class and add to it all the necessary variables for each type of opeations.

step 3. create a vector of CUndo pointers .

step 4 .save all the CUndo object pointers in this particular vector.

always save the previous state of the image when the user performs certain action.

for example if the image is changed from state1 to state2 then create an undo object storing all necessary information of state1 and add to vector.

if the user clicks undo menu then again create an undo object of state 2. then read the last object in the vector, refresh the image with the information retrieved from vector, delete this state1 undo object from the vector, and add the state 2 undo object information.

any one used CxImage????

satadru10-Dec-03 0:47

satadru

10-Dec-03 0:47

hi people if anyone has implemented Davide Pizzolato's CxImage class to load images of different formats ...kindly reply to me ...
Thanking you
Satadru Blush | :O

Re: any one used CxImage????

gri10-Dec-03 3:37

gri

10-Dec-03 3:37

is it worth answering this?
I would be very confused without having CxImage Smile | :)

I use it for Win32 (api) applications and it works well.

Goodbye and thanks for the fish!

GetAncestor api in VC++ 6

vladimir_india10-Dec-03 0:23

vladimir_india

10-Dec-03 0:23

I'm unable to call the Win32 pai GetAncestor in a VC++ project.
While other win32 API's like GetPaernt dont have any problem.
The error that comes is:

G:\VC++ progs\venom\venom.cpp(89) : error C2039: 'GetAncestor' : is not a member of '`global namespace''
G:\VC++ progs\venom\venom.cpp(89) : error C2065: 'GetAncestor' : undeclared identifier

I call it as :

GetAncestor(hwnd,1);//GA_PARENT = 1

-Vladimir India

Re: GetAncestor api in VC++ 6

jmkhael10-Dec-03 0:28

jmkhael

10-Dec-03 0:28

Try to include Winuser.h

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: GetAncestor api in VC++ 6

vladimir_india10-Dec-03 18:19

vladimir_india

10-Dec-03 18:19

Hi!

Including winuser.h has got no effect. I still am not able to compile it!

I tried it on both win2000 and win98,...

Can you please try calling it and see...
Thanks!

-Vladimir India

Re: GetAncestor api in VC++ 6

vladimir_india13-Dec-03 5:10

vladimir_india

13-Dec-03 5:10

HI!
well, it me replying me...Nooo! its for others..for i got an alternate of the problem..
I called the function right from the dll, using LoadLibrary call and then GetProcAddress .

But still, The main question persists.
Anybody having any clue???

-Vladimir India

how to encode .wav file

yingkou10-Dec-03 0:08

yingkou

10-Dec-03 0:08

Now I am working on project about voice transimite,I have finished encoded wave file.when I play the encoded file by function PlaySound,it doesn't always work well.

Re: how to encode .wav file

Alexander ^M.,10-Dec-03 5:27

Alexander ^M.,

10-Dec-03 5:27

the description is not acceptable, i don't understand what ur excact problem is!

Don't try it, just do it! Wink | ;-)

Re: how to encode .wav file

yingkou10-Dec-03 15:41

yingkou

10-Dec-03 15:41

I have made a mistake,I just want to compress wave file into a new file and play it

Win95: LoadIcon/Image fails if resource to big

Gerald769-Dec-03 23:27

Gerald76

9-Dec-03 23:27

If the Resource of an application ist to big in Windows 95 the LoadIcon and LoadImage funtions return NULL.
GetLastError returns 0 (no Error).
My App-Resource has a RCDATA with 3MB:
- icon in titlebar not displayed correctly
- LoadIcon and LoadImage returns NULL (LoadBitmap works)

I think its an error in user32.dll Version 4.00.950 (have testet in Win95,A,B,C).
But can't find an update ! Do you know one ???

Test self on Win95:
- Make MFC-App with VC6.0
- Run -> Titlebar-Icon correct
- insert Resource (Import a file with 3 MB) RCDATA or other name (user-defined)
- Run -> Titlebar-Icon: gray with blue middleline and LoadIcons fails

Do you know an update etc. ?
(Please don't post i should reduce my resource Wink | ;-)

Thanks
Gerald

Re: Win95: LoadIcon/Image fails if resource to big

Alexander ^M.,10-Dec-03 5:30

Alexander ^M.,

10-Dec-03 5:30

windows 95 is old, maybe it doesnt support such big resources

Don't try it, just do it! Wink | ;-)

CreateRemoteThread under 98

ktvije9-Dec-03 22:39

ktvije

9-Dec-03 22:39

I have a cmd.exe which is executing a .bat file under 98/Me. From Another Application I want to execute GetCommandLine() function inside the cmd.exe(using some injection/hooking). We can achieve this by CreateRemoteThread in NT and above OS.

What is the simple and save method available under 98/Me? I just want to interact with only one application(cmd.exe) not the whole system process.

Please help.
Viji

Re: CreateRemoteThread under 98

jmkhael9-Dec-03 23:09

jmkhael

9-Dec-03 23:09

Check http://www.codeproject.com/threads/consolepipe.asp?target=Console%7CSpawn%7Cclass

http://www.codeproject.com/dialog/quickwin.asp?target=Console%7CSpawn%7Cclass

http://www.codeproject.com/system/console_spawn_class.asp?target=Console%7CSpawn%7Cclass

http://www.codeproject.com/useritems/redir.asp?target=Console%7CSpawn%7Cclass

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: CreateRemoteThread under 98

ktvije10-Dec-03 0:00

ktvije

10-Dec-03 0:00

Thanks for the reply. All these Example are using create process method for console Application which is created by their own program(output) not interacting with external application. But in my case batch file process(cmd.exe) is created by some one else. Now I know only the ProcessID and ThreadID. From this information I need to go inside the process and get the command line arguments.

Viji

Re: CreateRemoteThread under 98

jmkhael10-Dec-03 0:10

jmkhael

10-Dec-03 0:10

Try openprocess using your process id using the same code

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: CreateRemoteThread under 98

ktvije10-Dec-03 2:39

ktvije

10-Dec-03 2:39

I am trying to execute all these 4 demos(you referenced) under Windows 98. It is not responding. Is this because Command.com(16 bit)?

Property page trouble

pranavamhari9-Dec-03 21:37

pranavamhari

9-Dec-03 21:37

hi,

I perform a lengthy operation in a property page when users clicks a button. For example, like this

//////////////
m_bUserAbort = FALSE;

while(1)
{
MSG msg;
while (::PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE))
AfxGetThread()->PumpMessage();

if(m_bUserAbort)
break;
}

///////////

However, the dialog is not responding to user's cancel button click, which sets m_bUserAbort to true.

what is wrong ? the page is not even responding to move operation by mouse.

regards
hari

Hari Krishnan

Re: Property page trouble

WoutL10-Dec-03 1:38

WoutL

10-Dec-03 1:38

Hi Hari,

Try:

<br />
while(1)<br />
{<br />
   MSG msg;<br />
   while(::PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE))<br />
   {<br />
      if(!AfxGetApp()->PumpMessage())<br />
      {<br />
         ::PostQuitMessage(0);<br />
         break;<br />
      }<br />
   }<br />
   // Simulate the framework's idle processing mechanism.<br />
   LONG lIdle = 0;<br />
   while (AfxGetApp ()->OnIdle (lIdle++));<br />
<br />
   if(m_bUserAbort)<br />
      break;<br />
}<br />

Wout Louwers

Re: Property page trouble

pranavamhari10-Dec-03 14:25

pranavamhari

10-Dec-03 14:25

thanks

Hari Krishnan

Please help me, why I cannot open the project?

zhaopzhi9-Dec-03 21:29

zhaopzhi

9-Dec-03 21:29

In VC6.0,why Confused | :confused:

I cannot open the project of CDex downloaded from "http://sourceforge.net/" ? Thank you first.

Rap off for you,for me,for our human.

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