890918 - keystroke seems not to generate the desired command - C / C++ / MFC Discussion Boards

mbue9-Dec-10 12:16

9-Dec-10 12:16

1.) width != byte_width! byte_width == (width*(bitsperpixel/8)+3)&~3 (4byte boundary)
2.) call GetBitmapBits to get the bitmap content before save.
have a nice day.

Re: Save image from picturebox use MFC

tagopi9-Dec-10 17:08

tagopi

9-Dec-10 17:08

Hello

Try this.

http://www.ucancode.net/Visual_C_Codes/MFC-Example-CreateFile-WriteFile-save-memory-dc-bitmap-file.htm

instead of memdc, you can call your picture box dc.

Thanks
A. Gopinath.

Re: Save image from picturebox use MFC

josipahutar11-Dec-10 7:27

josipahutar

11-Dec-10 7:27

thx for your answer sir..
but after i try the code, i can't find image c://temp.bmp.
can u tell me , how to the code work in MFC to save a image di picturebox.

my problem : i will load a image to picturebox in MFC then i'm want to save it.
can u give sample code about my problem??

Regard's
Johannes.

Re: Save image from picturebox use MFC

josipahutar11-Dec-10 7:38

josipahutar

11-Dec-10 7:38

Thx sir..

but i dont understand..
Can you explain in detail the program...

Regard
Johannes

Re: Save image from picturebox use MFC

tagopi12-Dec-10 17:08

tagopi

12-Dec-10 17:08

Hello

try by sending this hDC to save. I didn't tried this. check whether it is working or not.
HDC hDC=GetDC(GetDlgItem(IDC_PICTUREBOX); //------- id for your picture box.

Save...... (hDC, ...);

Thanks
A. Gopinath.

Re: Save image from picturebox use MFC

josipahutar13-Dec-10 7:29

josipahutar

13-Dec-10 7:29

sir, i got a error.. "GetDC' : function does not take 1 parameters"

how about it??

Re: Save image from picturebox use MFC

tagopi16-Dec-10 16:45

tagopi

16-Dec-10 16:45

Hello,

sorry for delay. instead of HDC you can use CClientDC. that will work.

Regards,
A. Gopinath.

890918 - keystroke seems not to generate the desired command

ilostmyid29-Dec-10 6:45

ilostmyid2

9-Dec-10 6:45

hi i defined an accelerator Ctrl+T to generate ID_TMPDLG. i put

ON_COMMAND(ID_TMPDLG, &Ct2App::OnTmpDlg)

but the function is not called. i tried to see whether to message for the accelerator is generated correctly and i tested it in:

BOOL Ct2App::PreTranslateMessage(MSG* pMsg)
{
	// TODO: Add your specialized code here and/or call the base class
	if (pMsg->message == WM_KEYDOWN && pMsg->wParam == 'T')
		return CWinAppEx::PreTranslateMessage(pMsg);
	return CWinAppEx::PreTranslateMessage(pMsg);
}

by defining a break point, i realized that the line is hit and the message is produced correctly. but i don't know why the command ID_TMPDLG is not generated or received by the application. i tried to handle the command in another places like main frame and child view, but it didn't help and the command is not still generated or received. i don't know whether the accelerator message is not converted into the command or the message is lost somewhere.
what can i do?
thx

Re: 890918 - keystroke seems not to generate the desired command

mbue9-Dec-10 12:25

mbue

9-Dec-10 12:25

1.) create an accelerator resource.
2.) load them: _haccel = LoadAccelerator(0,MAKEINTRESOURCE(<idaccel_res>))
3.) translate them by calling TranslateAccelerator()
have a nice day.

Re: 890918 - keystroke seems not to generate the desired command

ilostmyid210-Dec-10 3:53

ilostmyid2

10-Dec-10 3:53

oh thanx
so u mean my defined accelerator is not loaded or is not translated?
i put it in the only one pre-existing accelerator list with the id of IDR_MAINFRAME. if it's not loaded the other defined accelerators in the list must also not work, but they do. for example Ctrl+S brings up the Save As dialog, etc.
how can i justify this and how can i check that whether an accelerator is loaded or translated properly and where in the program does this happen?
thx

Re: 890918 - keystroke seems not to generate the desired command

mbue10-Dec-10 8:59

mbue

10-Dec-10 8:59

"so u mean my defined accelerator is not loaded or is not translated?"
yes indeed - set a breakpoint at the TranslateMessage of the base class. enshure your accelerators are loaded. it seems only the predefined accelerators will work.
good luck.

Re: 890918 - keystroke seems not to generate the desired command

ilostmyid219-Dec-10 0:38

ilostmyid2

19-Dec-10 0:38

i couldn't find TranslateMessage! it seems to be an API function, not belonging to any class. TranslateMessage of what class u mean?

full path of a process

zon_cpp8-Dec-10 23:46

zon_cpp

8-Dec-10 23:46

Hi,
how do i receive full path of a specified process with it's name.

with Process32First and Process32Next functions, i will receive the name of specified process (the szExeFile member of PROCESSENTRY32 struct)
but to have full path?
please help me.

Zo.Naderi-Iran

Re: full path of a process

CPallini9-Dec-10 0:12

CPallini

9-Dec-10 0:12

You may call GetModuleFilenameEx[^] (after calling OpenProcess[^] for retrieving process handle from process id).
Smile | :)

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[My articles]

Re: full path of a process [modified]

zon_cpp9-Dec-10 0:28

zon_cpp

9-Dec-10 0:28

i include the psapi header:

#include psapi.h

but it is an error : unresolved externals
?

Zo.Naderi-Iran

modified on Thursday, December 9, 2010 6:39 AM

Re: full path of a process

CPallini9-Dec-10 0:37

CPallini

9-Dec-10 0:37

Did you link with Psapi.lib?
Smile | :)

Re: full path of a process

zon_cpp9-Dec-10 0:41

zon_cpp

9-Dec-10 0:41

no, only include psapi.h

Zo.Naderi-Iran

Re: full path of a process

CPallini9-Dec-10 0:53

CPallini

9-Dec-10 0:53

The try to link with the library (select Project->Project Properties menu item, then, on the newly appeared window, choose Configuration Properties->Linker->Input, finally add Psapi.lib to the Additional Dependecies list).
Smile | :)

Re: full path of a process

zon_cpp9-Dec-10 2:18

zon_cpp

9-Dec-10 2:18

it is ok, thank you

Zo.Naderi-Iran

Re: full path of a process

CPallini9-Dec-10 2:29

CPallini

9-Dec-10 2:29

You are welcome.
Smile | :)

Re: full path of a process

David Crow9-Dec-10 2:44

David Crow

9-Dec-10 2:44

Including a header file and linking with a library are two separate things.

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Alignment of More Than Two Text in Correct Format for CListBox.

janaswamy uday8-Dec-10 22:42

janaswamy uday

8-Dec-10 22:42

Hi all,

i have to Append the String Values in CListBox just Like ClistCtrl Does.

I mean i am appending the String values inside the ClistBox with some Gaps but they are not Alligned Properly.

I have to Display just like CListControl.

Code:
-----
CListBox.AddString("one"+ "-----------------" +"1"); //Equal Space Padding automatically depending on Chars in List.
CListBox.AddString("Twently"+ "-------------" +"2");

The Padding of Small and Big charters in CListBox must just appear as CListCtrl.

Give a solution for this.

Thanks,
Uday.

Re: Alignment of More Than Two Text in Correct Format for CListBox.

Richard MacCutchan8-Dec-10 23:32

Richard MacCutchan

8-Dec-10 23:32

I am not sure I understand your question but I suspect that your CListBox is using a proportional font so individual characters are only as wide as they need to be. You probably want to use a fixed width font, such as Courier, where each character is the same width in pixels.

Just say 'NO' to evaluated arguments for diadic functions! Ash

Re: Alignment of More Than Two Text in Correct Format for CListBox.

krmed9-Dec-10 0:38

krmed

9-Dec-10 0:38

You might take a look at SetTabStops[^] in MSDN.

Using that, you can still use proportional fonts.

Hope that helps.

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save image after setting transparency

tagopi8-Dec-10 21:22

tagopi

8-Dec-10 21:22

Hello

I am loading an image file using gdiplus Bitmap class, and changing the transparency using ColorMatrix, and draw the image in device context, its showing fine in transparency. now i want to save this file in disk (with transparency). is there anyway to do that?

i am doing like this.
Bitmap gbmp = Bitmap::FromFile("C:\\anyimage.bmp");
ImageAttributes imgAttr;
ColorMatrix tcm =
{
1.0f, 0.0f, 0.0f, 0, 0,
0.0f, 1.0f, 0.0f, 0, 0,
0.0f, 0.0f, 1.0f, 0, 0,
0.0f, 0.0f, 0.0f, 0.6f, 0.0f,
0.0f, 0.0f, 0.0f, 0.0f, 1.0f
};

imgAttr.SetColorMatrix(&cm, Gdiplus::ColorMatrixFlagsDefault,Gdiplus::ColorAdjustTypeBitmap);

Graphics g(dc.GetSafeHdc());
g.DrawImage(gbmp, Gdiplus::Rect(0, 0, gbmp.GetWidth(), gbmp.GetHeight()), 0, 0, gbmp.GetWidth(), gbmp.GetHeight(),UnitPixel, &imgAttr);

after this, i need to save this image in disk.

Thanks
A. Gopinath.

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