Re: Convert mm(millimeter) into pixels for use with TextOut - C / C++ / MFC Discussion Boards

Re: Changing Picture

Halawlaws20-Jul-05 3:17

Halawlaws

20-Jul-05 3:17

what?

/\|-||\/|/\|)

loading bitmaps from List Box

a_david12319-Jul-05 19:28

a_david123

19-Jul-05 19:28

Respected all

Regards!
I am a begginer in VC++ and facing problem

" I have a few bitmaps and i have to select from List Box at runtime that which bitmap has to display, how i display a bitmap while selecting from List Box at RunTime.

Hope + response.

Form

david

Re: loading bitmaps from List Box

David Crow20-Jul-05 3:11

David Crow

20-Jul-05 3:11

For starters, you'll need a listbox with the LBS_OWNERDRAWFIXED style.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Open Files

Anonymous19-Jul-05 19:09

Anonymous

19-Jul-05 19:09

I have downloaded a project that contains several cpp, sln, vcproj, and corresponding *.h files.
Could not open the vcproj or sln file.
I am using VC++6. How do I know which is the main cpp file? What file should I open via the IDE?

thanX

Re: Open Files

22491719-Jul-05 19:57

224917

19-Jul-05 19:57

Anonymous wrote:
I have downloaded a project that contains several cpp, sln, vcproj, and corresponding *.h files.
Could not open the vcproj or sln file.
I am using VC++6.

Try using this tool :
VC++7 to VC++6 project converter[^] to convert and then try to open with vc6.

suhredayan
There is no spoon.

Convert mm(millimeter) into pixels for use with TextOut

wasife19-Jul-05 19:09

wasife

19-Jul-05 19:09

I want to draw a string in an SDI using TextOut. But i have co-ordinates in millimeters. How can i convert them into pixels. Help needed urgently...

Re: Convert mm(millimeter) into pixels for use with TextOut

Marc Soleda19-Jul-05 20:10

Marc Soleda

19-Jul-05 20:10

Ups!! The pixel is the basic unit of programmable color on a display or image so it's more a logical unit than a physical one, altough the physical size of a pixel depends on how you've set the resolution for the display screen:
If the display is at its maximum resolution, the physical size of a pixel will be the physical size of the dot of the display (usually .28mm but you should look to the specs of your display). If you've set the resolution to less, a pixel will be larger than the physical size of the screen's dot (the pixel will use more than one dot).

Hope it helps ...

Marc Soleda.

... she said you are the perfect stranger she said baby let's keep it like this... Tunnel of Love, Dire Straits.

Re: Convert mm(millimeter) into pixels for use with TextOut

RicoH20-Jul-05 0:42

RicoH

20-Jul-05 0:42

Hi,

If you call 'GetDeviceCaps' on your device context you can get
the width and height, in millimeters, of your physical screen.
You can also get the resolution of the screen in pixels this way,
so you should be able to do some calculations based on these values...

Don't think you are, know you are...

Screen Capture

dSolariuM19-Jul-05 18:14

dSolariuM

19-Jul-05 18:14

Hi all,
I wanted to cature the screen and I found it but:
The functions I used didn't capture the Mouse Icon!
What Can I do for this problem?
Please Help me,
Cheers,
Thanks,
MILAD.

Every new thing you learn,Gives you a new personality.

Re: Screen Capture

nm_11419-Jul-05 19:55

nm_114

19-Jul-05 19:55

You could draw the mouse icon yourself by using GetCursorPos, DrawIcon and GetCursor functions. This will only work by attaching your app's thread to the thread that has the window under the cursor. You can do this by using the following functions: GetCursorPos, WindowFromPoint, GetWindowThreadProcessId, GetCurrentThreadId and AttachThreadInput. It's a little messy but it works.

Re: Screen Capture

vishalmore20-Jul-05 1:26

vishalmore

20-Jul-05 1:26

Hi dSolariuM,

This is the way to capture the entire screen

HDC hScreenDC = CreateDC("DISPLAY", NULL, NULL, NULL);
HDC hCompatibleDC = CreateCompatibleDC(hScreenDC);
HBITMAP hScreenBitmap = CreateCompatibleBitmap(hScreenDC,
GetDeviceCaps(hScreenDC, HORZRES), GetDeviceCaps(hScreenDC, VERTRES));

HGDIOBJ hPrevObject = SelectObject(hCompatibleDC, hScreenBitmap);
BitBlt(hCompatibleDC,0,0,GetDeviceCaps(hScreenDC, HORZRES),
GetDeviceCaps(hScreenDC, VERTRES),hScreenDC,0,0,SRCCOPY);
OpenClipboard(GetActiveWindow());
EmptyClipboard();
SetClipboardData(CF_BITMAP,hScreenBitmap);
CloseClipboard();

This code snipet would copy the screen snap in the clipboard.

Hope this would solve your problem.

Have fun !

Cheers,
Vishal

Re: Screen Capture

dSolariuM21-Jul-05 0:00

dSolariuM

21-Jul-05 0:00

Hi,
and thanks for your reply but:
The code gave to me deosn't show the Mouse Icon,
I want the Mouse Icon in the Captured file,
Cheers,
Thanks,
MILAD.

Every new thing you learn,Gives you a new personality.

Using Microsoft computer login dialog

astibich219-Jul-05 17:07

astibich2

19-Jul-05 17:07

I need a dialog that will query the user for a user name and password, and I'd like to use the microsoft dialog that appears when you try to access a computer that's on an untrusted domain. It's got a user name combo box\edit control, a password edit control, and a 'Remember my password' check box. Too bad I can't attach a screen shot...

Is that dialog an exported class (like CFileDialog), or is there a shell command that I can use?

I'm using Visual Studio.Net 2003, on Windows XP, programming in C++;

Thanks,

Aaron

Re: Using Microsoft computer login dialog

David Crow20-Jul-05 3:20

David Crow

20-Jul-05 3:20

Yes, the dialog resource is available in one of the main system DLLs. I've seen it before but can't remember which file it's in. Why not just make your own? It'll take all of five minutes.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Cancel dialog question

nm_11419-Jul-05 14:25

nm_114

19-Jul-05 14:25

I have a cancel dialog for an operation that takes a while. The problem is when, in the loop, I try to change a Static control's text on the cancel dialog, it doesn't seem to erase its background (if it's showing a long file name and then a short one, the end part of the long one is still showing). I found workarounds like calling InvalidateRect on the parent dialog, but it causes a lot of flickering... I'm using the following code to process messages while in the loop:

<code>

		MSG msg;
		while (PeekMessage((LPMSG) &msg, (HWND) NULL, 0, 0, PM_REMOVE))
		{
			if (!IsDialogMessage(m_hDlgWnd, (LPMSG) &msg))
			{
				TranslateMessage((LPMSG) &msg);
				DispatchMessage((LPMSG) &msg);
			}
		}

</code>

Is there anything i'm missing?
(I'm not using MFC or anything)

- thanks

Re: Cancel dialog question

Blake V. Miller19-Jul-05 19:01

Blake V. Miller

19-Jul-05 19:01

Why not invalidate the static control itself.
After setting the new text you want.

Re: Cancel dialog question

nm_11419-Jul-05 19:09

nm_114

19-Jul-05 19:09

Blake V. Miller wrote:
Why not invalidate the static control itself.

that was one of the first things I tried - didn't work Frown | :(

ListCtrl and TreeCtrl

Mohammed F. Salem19-Jul-05 11:13

Mohammed F. Salem

19-Jul-05 11:13

How i can insert data into ListCtrl when i clicked on TreeCtrl item
it doesn't work true with me

plz help me

Re: ListCtrl and TreeCtrl

Christian Graus19-Jul-05 11:18

Christian Graus

19-Jul-05 11:18

Well, how are you trying to do it now ? Are you saying the data comes from the clicked treectrl item ? What's going wrong ?

Christian Graus - Microsoft MVP - C++

Re: ListCtrl and TreeCtrl

Mohammed F. Salem19-Jul-05 21:10

Mohammed F. Salem

19-Jul-05 21:10

When i clicked on TreeCtrl item that came from the database then the ListCtrl make a query for this data and appear it on the ListCtrl

so if u want the project take my email
m_fuad67@hotmail.com

MFC programmer

Re: ListCtrl and TreeCtrl

Christian Graus20-Jul-05 11:50

Christian Graus

20-Jul-05 11:50

m_fuad67 wrote:
When i clicked on TreeCtrl item that came from the database then the ListCtrl make a query for this data and appear it on the ListCtrl

So which bit are you stuck on ? Can you set the selected item ? Run the SQL ? Get the data to put in the list ?

m_fuad67 wrote:
so if u want the project take my email

Not really, I'd rather you asked more specific questions, so everyone here can try to help you.

Christian Graus - Microsoft MVP - C++

How can i use (dbf) FoxPro files with MFC

vugar19-Jul-05 10:46

vugar

19-Jul-05 10:46

Please help me How can i use (dbf) FoxPro files with MFC. I want to open data from dbf file..

Re: How can i use (dbf) FoxPro files with MFC

Graham Bradshaw19-Jul-05 13:03

Graham Bradshaw

19-Jul-05 13:03

MFC supports querying and updating ODBC databases, so take a look at CDatabase and CRecordset, together with an ODBC connection to your .dbf file.

Vugar Avazov

vugar19-Jul-05 10:22

vugar

19-Jul-05 10:22

How can I open a Foxpro Table using Visual C++ 6. Please help me...........

I need to use unicode charset.For example, (In richEdit)

Passing variables between dialogs

Nick Usechak19-Jul-05 9:16

Nick Usechak

19-Jul-05 9:16

I hate to trouble everyone with such a simple question but I’ve been stuck on this for about a day (I am not that experienced in VC++). I’ve already tried searching everywhere but didn’t find anything that helped me yet. I have a dialog based VC++ program that takes user input and solves a nonlinear partial differential equation. Anyway, I wrote a different dialog based VC++ program which plots the results. I am currently saving the results from the first *.exe to a data file and using ShellExecute() to open up the plotting *.exe file, import the data, and plot the results (just to get things working).

Obviously this approach is poor. I would like to avoid saving the data (an int, 2 1D arrays, and 1 2D array) to the temp file, and get a single application that performs all of the current functions. I tried adding a new dialog to the main project and then selecting “Create a new class” to associate with it. I am able to open this dialog from the main one using

Plotter dlgplot;
dlgplot.DoModal();

but can’t get data to it.

My question is: how can I pass the data from the main class to my plotting one?

Thank you in advance I appreciate any help.

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