Tab Order - C / C++ / MFC Discussion Boards

bob1697212-Dec-04 8:43

12-Dec-04 8:43

I'm not sure how you are implementing the check...(i.e. whether it is as the user is typing or during string validation) so this may not be what you are looking for...

// If you are validating each character
int isdigit( int c ); // isdigit returns a non-zero value if c is a decimal digit (0 – 9).

or you can make the CEdit control numeric only.

bitmap data

includeh1011-Dec-04 12:40

includeh10

11-Dec-04 12:40

for a 16, 24 or 32 bits-count bitmap, is their data in following format?

16 bits:
5-5-6 = r-g-b or b-g-r?
24 bits:
8-8-8 = r-g-b or b-g-r?
32 bits:
what is its format?

any docs or links about the format?

includeh10

Re: bitmap data

HalfWayMan12-Dec-04 1:31

HalfWayMan

12-Dec-04 1:31

1) 16 and 24 bit bitmaps

The format of these changes depending on the hardware or the specification of the bitmap, the ones I found most common are the ones you mentioned, and in RGB order.

2) 32 bit

32 bit is usually either RGBA, ARGB, BGRA; in 8888 format.

For converting all the formats a useful reference is the Allegro (now obselete) game programming library:

http://www.talula.demon.co.uk/allegro/[^]

Re: bitmap data

includeh1012-Dec-04 2:11

includeh10

12-Dec-04 2:11

what does A in RGBA mean?

thx

includeh10

Re: bitmap data

HalfWayMan12-Dec-04 2:33

HalfWayMan

12-Dec-04 2:33

A is the Alpha channel. In film and other applications this refers to the intensity of the combined RGB colour, but in graphics it is usually used for blending purposes - the higher the alpha value, the more significance the colour has over others.

asynchronnous download from web

PetoG11-Dec-04 6:51

PetoG

11-Dec-04 6:51

Hi,
I need your help. Do you know any fine C++ class for asynchronnous HTTP download, except MFC CAsyncMonikerFile? Please help me.

Re: asynchronnous download from web

Neville Franks11-Dec-04 9:44

Neville Franks

11-Dec-04 9:44

One way is to move your Sync code to a worker thread. Also look at: http://www.codeproject.com/internet/getwebfile.asp[^]

Neville Franks, Author of ED for Windows www.getsoft.com and Surfulater www.surfulater.com "Save what you Surf"

Tab Order

Anthony988711-Dec-04 5:02

Anthony9887

11-Dec-04 5:02

I have a dialog box with several controls and I'm creating one control(Combobox) at runtime. I would like to set the focus for this control. Is there a way to change the tab order programmaticaly and set the focus to this control at runtime?

Thanks

Re: Tab Order

toxcct11-Dec-04 7:26

toxcct

11-Dec-04 7:26

changing the tab order programmaticaly, nop
setting the foccus at runtime, like this :

if using MFC, do this :

pMyControl->SetFocus();
with pMyControl that is a pointer to the control. for example :
CButton* pButton = (CButton*)GetDlgItem(IDC_MY_BUTTON);

understand ? Big Grin | :-D

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: Tab Order

PJ Arends11-Dec-04 11:59

PJ Arends

11-Dec-04 11:59

To change the tab order of controls, you have to use the SetWindowPos() function. The hWndInsertAfter parameter is used to set the tab order. Just specify in this parameter the HWND of the window(control) that you want the control you are setting to follow.

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04

Within you lies the power for good - Use it!

Problem with the width of the TabedReBar Sample

Schniddel11-Dec-04 4:51

Schniddel

11-Dec-04 4:51

Hello!

My Problem is, that the Tabbed Rebar is as long as my Main Window. But I want that the tabbed rebar has a with of x=200 and height of y=100. How can I do that manuelle?
here is the link to the example:
http://www.codeproject.com/docking/TabedReBar.asp

thank you in advanced

Sending and recording voice from server using UDP

Anup Singh J11-Dec-04 3:52

Anup Singh J

11-Dec-04 3:52

I am developing a project using UDP protocol. How i can record sound and play from the server through my client machine. Please do reply asap.

** A Fighter Never Loses !!!!

Re: Sending and recording voice from server using UDP

User 665811-Dec-04 7:10

User 6658

11-Dec-04 7:10

there are quite a few example projects here on CP.com, use the search fnuction Smile | :)

modified 12-Sep-18 21:01pm.

need tools of Resource explorer

includeh1011-Dec-04 3:10

includeh10

11-Dec-04 3:10

i need tools which can read resource info of exe (or/and dll) files.

if more than one on the internet, please comment the "best" one you think for me.

thx

includeh10

Re: need tools of Resource explorer

Michael Dunn11-Dec-04 4:43

Michael Dunn

11-Dec-04 4:43

The only one I've ever needed is Visual Studio, although I've heard good things about Resource Hacker too.

--Mike--
LINKS~! Ericahist | 1ClickPicGrabber | CP SearchBar v2.0.2 | C++ Forum FAQ | You Are Dumb

Funny results for FindFirstFile

ed welch11-Dec-04 0:56

ed welch

11-Dec-04 0:56

I called FindFirstFile with the search mask "*.m3u" and it finds a file with extension ".mp3~" (i.e. with a tilda at the end)
Is this a bug in FindFirstFile, or am I doing something wrong?

Re: Funny results for FindFirstFile

ThatsAlok11-Dec-04 2:11

ThatsAlok

11-Dec-04 2:11

No I don't think so,Could you show me your coding for that here !!!

-----------------------------
"I Think this Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

Re: Funny results for FindFirstFile

ed welch11-Dec-04 3:07

ed welch

11-Dec-04 3:07

WIN32_FIND_DATA findFileData;
HANDLE hSearch;
wxString strMask, strHit, strDiff;
strMask = "F:\\mp3\\Downloaded\\AC DC\\*.mp3";
hSearch = ::FindFirstFile(strMask, &findFileData);
while (hSearch != INVALID_HANDLE_VALUE)
{
strHit = findFileData.cFileName;
}
::FindClose(hSearch);

this will return a hit for any file with extension .mp3~ in said directory

Re: Funny results for FindFirstFile

Rajesh match12-Dec-04 21:07

Rajesh match

12-Dec-04 21:07

what is wxString?

Re: Funny results for FindFirstFile

ed welch13-Dec-04 8:48

ed welch

13-Dec-04 8:48

It's the string class from the wxWidgets library

Re: Funny results for FindFirstFile

Anonymous14-Dec-04 20:00

Anonymous

14-Dec-04 20:00

try to debug the it what exactly extension it has taken
i run this on my pc with CString its working fine

Re: Funny results for FindFirstFile

ed welch15-Dec-04 8:03

ed welch

15-Dec-04 8:03

It doesn't make any difference what string class you use. The bug is in FindFirstFile.

WM_GETTEXT( ).....?how doth it work?

aaadetos10-Dec-04 23:47

aaadetos

10-Dec-04 23:47

Please I'd like to know the syntax in using WM_GETTEXT(), for use in retreiving text from an edit box. Where should this syntax be used?

Re: WM_GETTEXT( ).....?how doth it work?

ThatsAlok11-Dec-04 0:32

ThatsAlok

11-Dec-04 0:32

it you know the ID of the Edit Box use
GetDlgItemText api

-----------------------------
"I Think this Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

Re: WM_GETTEXT( ).....?how doth it work?

Ravi Bhavnani11-Dec-04 1:59

Ravi Bhavnani

11-Dec-04 1:59

Many (actually most) Windows API calls that operate on windows work by sending the target window a message. WM_GETTEXT is the message sent to retrieve a window's text. Both these code fragments will get the edit control's text:

char szText [TEXTLEN];
HWND hWndEdit = window handle of edit control;
::GetWindowText (hWndEdit, szText, TEXTLEN - 1);

char szText [TEXTLEN];
HWND hWndEdit = window handle of edit control;
::SendMessage (hWndEdit, WM_GETTEXT,
              (WPARAM) TEXTLEN - 1,
              (LPARAM) szText);

/ravi

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