i want to get the handle of Dialog , that i created after clicking on a button - C / C++ / MFC Discussion Boards

Re: template magic - generic callbacks + return values

Ryan Binns30-Jan-04 2:23

30-Jan-04 2:23

Have you tried using a template, specifying void as the return type? The compiler will spit out a warning (not an error) if a void function returns a value, which you can safely ignore.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Re: template magic - generic callbacks + return values

peterchen30-Jan-04 3:00

peterchen

30-Jan-04 3:00

I'd like to be able to receive the return value when I do the "Call" through the base class (hence the idea of templating the base class over return type)

Flirt harder, I'm a coder.

mlog || Agile Programming | doxygen

Communicating with Proxy

sinuommen29-Jan-04 22:32

sinuommen

29-Jan-04 22:32

i would like to build an application to communicate with the Proxy. hw to do it

Thank You

Re: Communicating with Proxy

Prakash Nadar29-Jan-04 23:11

Prakash Nadar

29-Jan-04 23:11

I cant give you direct solution, but can give you pointers.

you need to know which proxy you are targeting,
HTTP 1/1 proxy, or sock, etc
mostly it is HTTP 1/1 proxy, so if you could refer the RFC for HTTP you will know how to do it.
regards,
Prakash.

Toughest Steel Comes From Hottest Furnance

a RSS reader

Jerome Conus29-Jan-04 20:46

Jerome Conus

29-Jan-04 20:46

Hi !

I'd like to try to write a very simple RSS reader, but...well, I have no idea where to start.
I've seen that I would need to read an XML file at a specific internet address and parse this XML file, but I'm wondering how other readers work : do I have to poll every x minutes the RSS feed and check for new informations or is there a way to get informed when new info is available ?

Thanks for your help !
Jerome

Re: a RSS reader

Taka Muraoka29-Jan-04 21:43

Taka Muraoka

29-Jan-04 21:43

Jerome Conus wrote:
do I have to poll every x minutes the RSS feed and check for new informations or is there a way to get informed when new info is available

He he. Welcome to the wonderful world of RSS. You've just found one of the many cans of worms that litter this particular landscape. RSS 2.0 has a way of notifying clients when things have changed but nobody bothers with it.

RSS Bandit[^] is open source so that should get you started.

Awasu is, of course, way cooler but I'm not giving away any source Smile | :)

Lets be honest, isn't it amazing how many truly stupid people you meet during the course of the day. Carry around a pad and pencil, you'll have twenty or thirty names by the end of the day - George Carlin

Awasu 1.2 [^]: A free RSS reader with support for Code Project.

URGENT : Black Image???

chio110229-Jan-04 20:16

chio1102

29-Jan-04 20:16

I am trying to interface my C code converted from Matlab with OpenCV.
I tried to get OpenCV to display the image I got from the Matlab
converted C code, but I got a BLACK IMAGE.

- FG is of mxArray * type.
- Using mxGetPr(FG) is supposed to return me the pointer to first
element of FG.
- Then I tried to capture the data in FG in char_ptr.
- And pass in the data in char_ptr into oImage->imageData.
- But all I get is a black image.
- Below is my program:

Can anyone please tell me what is wrong? Sigh | :sigh:

/*assigning the ouput from Matlab converted code to FG*/
mlfAssign(&FG, mlfIndexRef(mclVv(class0, "class"), ".FG"));
int m = mxGetM( FG );
int n = mxGetN( FG );
double * double_ptr = 0;
char char_ptr[240][320];
int i, j, count = 0;

double_ptr = mxGetPr( FG );
for(j=0;j<n;j++){
for(i=0;i<m;i++){
char_ptr[i][j]=(char)(*(double_ptr+count));
}
count++;
}
oimage =="" cvcreateimage(="" cvsize(n,="" m="" ),="" ipl_depth_8u,="" 1="" );
oimage-="">imageData = *char_ptr;
cvSaveImage("outputFG.jpg", oImage);

Please help...

pistachio

i want to get the handle of Dialog , that i created after clicking on a button

Anonymous29-Jan-04 20:10

Anonymous

29-Jan-04 20:10

HI,

i m begginer.
I want to get the handle of a Dialog , that i created after cliking on a button . (for both .. Modless and model)

plz tell me.

thanx

Re: i want to get the handle of Dialog , that i created after clicking on a button

SJolly29-Jan-04 22:03

SJolly

29-Jan-04 22:03

Hello,

The handle is a member of the CDialog object - m_hWnd.

I think this will be NULL until you have called the Create function on a modeless window.

Regards,
Simon

Re: i want to get the handle of Dialog , that i created after clicking on a button

John M. Drescher30-Jan-04 4:51

John M. Drescher

30-Jan-04 4:51

Use GetParent() from the button.

John

iCON OVERLAY

mjvalan29-Jan-04 19:44

mjvalan

29-Jan-04 19:44

I want to use Icon overlay for my files.

What i ve to do with the folowing method of IShellIconOverlayIdentifier

Methods are

GetOverlayInfo
GetPriority
IsMemberOf

web browser plugins

Abhi Lahare29-Jan-04 19:29

Abhi Lahare

29-Jan-04 19:29

Hi all,

I want to create a web browser plugin.But i don't know from where to starts.
Cry | :((

.
Any help to start will be a great

Thanks in advance
AL

Re: web browser plugins

Prakash Nadar29-Jan-04 22:22

Prakash Nadar

29-Jan-04 22:22

Which web broser are you talking about,
if IE there are samples in CodeProject,
if Netscape visit www.fundocode.com

Toughest Steel Comes From Hottest Furnance

Re: IE web browser plugins

Abhi Lahare29-Jan-04 22:44

Abhi Lahare

29-Jan-04 22:44

Hi Prakash,
I want to write IE Browser Plugins.I need something like Adobe Reader.Also I would like to difference between Browser Helper Object and Plugin.
Again,thanks in advance.
AL

Re: IE web browser plugins

Prakash Nadar29-Jan-04 23:09

Prakash Nadar

29-Jan-04 23:09

Sorry i dont have much info about that, but there are ie plugin samples using wtl here on cp.

Toughest Steel Comes From Hottest Furnance

how to convert text into image using VC++6.0

emmatty29-Jan-04 18:39

emmatty

29-Jan-04 18:39

hello firends,

how can i convert text into image programmitically. Cry | :((

Re: how to convert text into image using VC++6.0

basementman30-Jan-04 10:04

basementman

30-Jan-04 10:04

Draw the text into a device context using TextOut or DrawText, then get the bitmap from the device context.

onwards and upwards...

Fill Color in a static control at runtime

swarnamanoo29-Jan-04 18:15

swarnamanoo

29-Jan-04 18:15

I want to fill a chosen color from the color palette in a static control at runtime.How can i do it?

Re: Fill Color in a static control at runtime

amit sebiz29-Jan-04 19:28

amit sebiz

29-Jan-04 19:28

Create a custom derived class of any control and handle the WM_ERASEBACKGROUND in that class.create a solid brush of required color and paint the background(Note do it after calling base classes OnEraseBachGrnd).

how to disable Shift key

wow999929-Jan-04 18:14

wow9999

29-Jan-04 18:14

hi there

1.How to disable Shift key?
2.How to change Shift key function to let it become as same as Ctrl key?

Re: how to disable Shift key

Anonymous30-Jan-04 2:52

Anonymous

30-Jan-04 2:52

You can use GetKeyState() in you WM_KEYDOWN processing to check the state of the shift key; or you can simply process the WM_KEYDOWN message and check the wParam parameter for VK_SHIFT and then use SendMessage() to post a new message with VK_CONTROL.

About the WM_ENABLE?

zhaopzhi29-Jan-04 18:13

zhaopzhi

29-Jan-04 18:13

To make the control of IDC_RADIO1 to be enabled state,I tried SendDlgItemMessage and EnableWindow respectively.The result is the statement "EnableWindow(GetDlgItem(hDlg,IDC_RADIO1),TRUE);" succeeds, but the "
SendDlgItemMessage( hDlg, IDC_RADIO1, WM_ENABLE, (WPARAM)0L, (LPARAM)0L );" is failing! Why???

The following is my codes:

// Mesage handler for about box.<br />
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)<br />
{<br />
  switch (message)<br />
  {<br />
   case WM_INITDIALOG:<br />
        return TRUE;<br />
   case WM_COMMAND:<br />
        switch(LOWORD(wParam))<br />
        { <br />
         case IDOK:<br />
	case IDCANCEL:<br />
	     EndDialog(hDlg, LOWORD(wParam));<br />
	     return TRUE;<br />
	case IDC_BUTTON1:<br />
	    //SendDlgItemMessage( hDlg, IDC_RADIO1, WM_ENABLE, (WPARAM)TRUE, (LPARAM)0L );//fail!<br />
	    EnableWindow(GetDlgItem(hDlg,IDC_RADIO1),TRUE);//succeed.<br />
	   //SendDlgItemMessage( hDlg, (int)IDC_BUTTON2, WM_ENABLE, (WPARAM)0L, (LPARAM)0L );//fail!		 		<br />
	   //SendMessage(GetDlgItem(hDlg,IDC_RADIO1), WM_ENABLE, (WPARAM)0L, (LPARAM)0L );//fail!<br />
	   break;<br />
	}<br />
	break;<br />
   }<br />
   return FALSE;<br />
}

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

Re: About the WM_ENABLE?

Weiye Chen29-Jan-04 20:26

Weiye Chen

29-Jan-04 20:26

From msdn:
The WM_ENABLE message is sent when an application changes the enabled state of a window. It is sent to the window whose enabled state is changing. This message is sent before the EnableWindow function returns, but after the enabled state (WS_DISABLED style bit) of the window has changed.

So i think WM_ENABLE is like a notification message and its handler isn't really responsible for changing the state of the control.

<font=arial>Weiye Chen
When pursuing your dreams, don't forget to enjoy your life...

Need a SDK Cool Button

Cael29-Jan-04 18:08

Cael

29-Jan-04 18:08

Hello!

I need a cool Button (with MouseOver, MouseLeave and all other cool stuff), but I don't wann use any MFC Class. I need a pure SDK Cool Button.

Some ideas?

Thanxs.

Blush | :O

Re: Need a SDK Cool Button

alex.barylski29-Jan-04 18:12

alex.barylski

29-Jan-04 18:12

The hover buttons here on CP would be easy enough to port.

The word of the day is legs, let's go back to my house and spread the word Poke tongue | ;-P

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