Re: Getting Image Size - C / C++ / MFC Discussion Boards

Bob Stanneveld15-Nov-05 5:48

15-Nov-05 5:48

Hello,

Yes, the term would be that AddInteger() is overloaded for one parameter and for two parameters.

Behind every great black man...
... is the police. - Conspiracy brother

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Re: do they belong to overload?

vividwu15-Nov-05 12:21

vividwu

15-Nov-05 12:21

no,my meaning is void AddInteger(int a) and int AddInteger(int a,int b);
their return type is different,they belong to overload?
thanks

vivid

Re: do they belong to overload?

Bob Stanneveld15-Nov-05 22:32

Bob Stanneveld

15-Nov-05 22:32

Hello,

Your return type can be different as long the function is overloaded by parameters.

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Recycle bin thing

johny_d14-Nov-05 2:26

johny_d

14-Nov-05 2:26

Does anyone know how to get another "virtual folder" to My Compuer? What I mean is something like the Recycle Bin. - not visible to the user directly, but can be accessed via that icon in the Explorer.

Live long and in prosper

johny74656@gmail.com

Re: Recycle bin thing

Mike Dimmick14-Nov-05 2:46

Mike Dimmick

14-Nov-05 2:46

You'd have to write a shell namespace extension. See Michael Dunn's article "The Complete Idiot's Guide to Writing Namespace Extensions"[^].

Stability. What an interesting concept. -- Chris Maunder

Getting Image Size

raed14-Nov-05 1:48

raed

14-Nov-05 1:48

I have the following Image Object loaded from BITMAP HANDLE

Image *image = Bitmap::FromHBITMAP(hBitmap,NULL);

I need to get the Image size in bytes, how can I do this?

Re: Getting Image Size

YaronNir14-Nov-05 2:27

YaronNir

14-Nov-05 2:27

since you have the hBitmap, i suggest you use:

CBitmap::GetBitmap(BITMAP)

the BITMAP structure contains the necessary information you desire...

hope this helps ya

Yaron

Ask not what your application can do for you,
Ask what you can do for your application

Re: Getting Image Size

raed14-Nov-05 2:34

raed

14-Nov-05 2:34

the problem i do resize for image

image = ScaleByPercent(image,50);

so image will have a new size , then i saved the image object into IStream object as following :

<code>
CLSID encoderClsid;
GetEncoderClsid(L"image/jpeg", &encoderClsid);
image->Save(pStream,&encoderClsid,NULL);
</code>

any suggestion in getting the scaled image size in bytes.

<b>ScaleByPercent Function</b><code>
Image* ScaleByPercent(Image *imgPhoto, int Percent)
{
float nPercent = ((float)Percent/100);
int sourceWidth = imgPhoto->GetWidth();
int sourceHeight = imgPhoto->GetHeight();
int sourceX = 0;
int sourceY = 0;
int destX = 0;
int destY = 0;
int destWidth = (int)(sourceWidth * nPercent);
int destHeight = (int)(sourceHeight * nPercent);
Bitmap *bmPhoto = new Bitmap(destWidth, destHeight);
bmPhoto->SetResolution(imgPhoto->GetHorizontalResolution(),
imgPhoto->GetVerticalResolution());
Graphics *grPhoto = Graphics::FromImage(bmPhoto);
grPhoto->SetInterpolationMode(InterpolationModeHighQualityBicubic ) ;
RectF destRectA(destX, destY, destWidth, destHeight);
Unit srcunit = UnitPixel;
grPhoto->DrawImage(imgPhoto,destRectA,sourceX,sourceY,sourceWidth,sourceHeight,srcunit,NULL,NULL,NULL);
return bmPhoto;
}
</code>

Re: Getting Image Size

Mircea Puiu14-Nov-05 4:40

Mircea Puiu

14-Nov-05 4:40

Try using the PhysicalDimension property.
See here: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemdrawingbitmapmemberstopic.asp[^]

SkyWalker

launching windows exploere in 'Film Strip' mode

YaronNir14-Nov-05 1:23

YaronNir

14-Nov-05 1:23

Hi all,

I am real desperate here cause there aren't any good documentation regarding the matter...

i am interested to launch windows explorer via code or command line, to be opened in my desired folder, in a 'film strip' mode...

heard i can use IFolderView or other shell objects, but couldn't find any good sample of doing such...
can any1 please show me piece of code on how it can be done?

thanks

Yaron

Ask not what your application can do for you,
Ask what you can do for your application

Re: launching windows exploere in 'Film Strip' mode

David Crow14-Nov-05 2:33

David Crow

14-Nov-05 2:33

YaronNir wrote:
in a 'film strip' mode...

What's this?

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: launching windows exploere in 'Film Strip' mode

YaronNir14-Nov-05 2:38

YaronNir

14-Nov-05 2:38

if you are using winXP,open My Documents-->My Pictures, choose in the 'View' Menu 'Film strip'

it shows the pictures in a special way, in the bottom, small thumbnails of the picture and in the middle, the selected picture in large...

i want to open such a window programatically (c++ or by command line)

really need help here

thanks
Yaron

Ask not what your application can do for you,
Ask what you can do for your application

[Message Deleted]

David Crow14-Nov-05 2:45

David Crow

14-Nov-05 2:45

[Message Deleted]

Re: launching windows exploere in 'Film Strip' mode

YaronNir14-Nov-05 2:45

YaronNir

14-Nov-05 2:45

it comes with winXP sp2....

Ask not what your application can do for you,
Ask what you can do for your application

Re: launching windows exploere in 'Film Strip' mode

David Crow14-Nov-05 3:00

David Crow

14-Nov-05 3:00

All you have to do is send the SHELLDLL_DefView window a WM_COMMAND message with a command ID of 0x702f.

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: launching windows exploere in 'Film Strip' mode

YaronNir14-Nov-05 3:02

YaronNir

14-Nov-05 3:02

any chance of piece of code?

thanks for all the help

Yaron

Ask not what your application can do for you,
Ask what you can do for your application

Re: launching windows exploere in 'Film Strip' mode

David Crow14-Nov-05 3:06

David Crow

14-Nov-05 3:06

Sorry. I meant to provide a link in my last reply:

http://msdn.microsoft.com/msdnmag/issues/04/03/CQA/default.aspx[^]

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: launching windows exploere in 'Film Strip' mode

YaronNir14-Nov-05 3:13

YaronNir

14-Nov-05 3:13

thanks for the link,

the link refers to OpenFile dialog, and i want to launch 'explorer.exe' (using CreateProcess or ShellExecute or any other method) and then tell it to open in a 'Film strip'

help??

thanks again

Yaron

Ask not what your application can do for you,
Ask what you can do for your application

Re: launching windows exploere in 'Film Strip' mode

David Crow14-Nov-05 6:30

David Crow

14-Nov-05 6:30

Had it been anything other than explorer.exe, the answer would have only been five minutes away. However, explorer.exe is different in that it doesn't, by default, start a new application each time. It gets its own thread but within an already existing process. To work around this, a registry change was required. Create the following DWORD key:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer]
"DesktopProcess"=dword:00000001

This code will now open Windows Explorer in 'filmstrip' view:

HWND _hWnd = NULL;
 
BOOL CALLBACK EnumProc( HWND hWnd, LPARAM lParam )
{
    DWORD dwProcessId;
 
    GetWindowThreadProcessId(hWnd, &dwProcessId);
 
    if ((DWORD) lParam == dwProcessId)
    {
        char szText[256];
        if (::GetWindowText(hWnd, szText, sizeof(szText)) > 0) // this check may not be necessary
        {
            char szClass[256];
            GetClassName(hWnd, szClass, sizeof(szClass));
            if (lstrcmp(szClass, "CabinetWClass") == 0)
            {
                _hWnd = hWnd;
                return FALSE;
            }
        }
    }
 
    return TRUE;
}
...
DWORD dwError;
BOOL bResult;
STARTUPINFO si = {0};
PROCESS_INFORMATION pi = {0};
 
si.cb = sizeof(si);
 
bResult = CreateProcess(NULL,
                            "c:\\windows\\explorer.exe \"C:\\Documents and Settings\\<user>\\My Documents\\My Pictures\\<folder>\"",
                            NULL,
                            NULL,
                            TRUE,
                            NORMAL_PRIORITY_CLASS,
                            NULL,
                            NULL,
                            &si,
                            &pi);
 
if (! bResult)
    dwError = GetLastError();
 
WaitForInputIdle(pi.hProcess, 3000);
 
EnumWindows(EnumProc, pi.dwProcessId);
 
HWND hWnd = FindWindowEx(_hWnd, NULL, "SHELLDLL_DefView", "");
if (hWnd != NULL)
    ::SendMessage(hWnd, WM_COMMAND, 0x702f, 0);

Obviously this solution has a few shortcomings but I think you get the general idea. I think that FindWindow() can also be used to find the "CabinetWClass" window.

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: launching windows exploere in 'Film Strip' mode

Sheng Jiang 蒋晟14-Nov-05 19:22

Sheng Jiang 蒋晟

14-Nov-05 19:22

I just posted an article about automating Internet Explorer and Explorer on Codeproject (http://www.codeproject.com/shell/AutomateShellWindow.asp).

To switch to 'Film Strip' mode, use IFolderView::SetCurrentViewMode with FVM_THUMBSTRIP. IFolderView can be QIed from the active shell view in explorer.

My blogs:

http://blog.joycode.com/jiangsheng
http://blog.csdn.net/jiangsheng
http://bloglines.com/public/jiangsheng

Command what is yours
Conquer what is not
---Kane

Re: launching windows exploere in 'Film Strip' mode

YaronNir14-Nov-05 21:50

YaronNir

14-Nov-05 21:50

Hi JIANG,

thanks for the reply...

i've looked eariler at your code posted here...tried to simulate it but didn't get much luck..

can you copy and paste bits of your code here to answer my quiz

all i need to do is open explorer in a certain directory and then switch it to film strip view

an easiest approach for me would be to write something like this:

using shellexecute , "explorer.exe /n,c:\.....\MyFolder"
and then set a registry key that customize this folder to 'filmstrip'
i've been shown by DavidCrow where the windows store this customization, all i have to look for now is how the system find the folder according to the number in the registy...

can u help there?

thanks again
Yaron

Ask not what your application can do for you,
Ask what you can do for your application

Re: launching windows exploere in 'Film Strip' mode

David Crow15-Nov-05 3:25

David Crow

15-Nov-05 3:25

YaronNir wrote:
and then set a registry key that customize this folder to 'filmstrip'

Look at the Vid and Mode values.

Details:
"Vid"="{137E7700-3573-11CF-AE69-08002B2E1262}"
"Mode"=dword:00000004

Icons:
"Vid"="{0057D0E0-3573-11CF-AE69-08002B2E1262}"
"Mode"=dword:00000001

List:
"Vid"="{0E1FA5E0-3573-11CF-AE69-08002B2E1262}"
"Mode"=dword:00000003

Thumbnails:
"Vid"="{8BEBB290-52D0-11D0-B7F4-00C04FD706EC}"
"Mode"=dword:00000005

Tiles:
"Vid"="{65F125E5-7BE1-4810-BA9D-D271C8432CE3}"
"Mode"=dword:00000006

Filmstrip:
"Vid"="{8EEFA624-D1E9-445B-94B7-74FBCE2EA11A}"
"Mode"=dword:00000007

YaronNir wrote:
i've been shown by DavidCrow where the windows store this customization, all i have to look for now is how the system find the folder according to the number in the registy...

After looking at the HKEY_CURRENT_USER\Software\Microsoft\Windows\ShellNoRoam\BagMRU key and its subkeys, I can only guess it's some sort of hashing algorithm.

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: launching windows exploere in 'Film Strip' mode

YaronNir15-Nov-05 5:24

YaronNir

15-Nov-05 5:24

well, you're correct, the FilmStrip is indeed 8EEFA624-D1E9-445B-94B7-74FBCE2EA11A
but i still can't figure it out what is the connection between the number and the refered directory ?

i think an easier solution to my entire problem would be just call shell execute with
"explorer.exe /n,"c:\.....\my folder"

and then set a registry key (the right one - that fits to this folder) with the filmstrip mode
(i.e. Filmstrip:"Vid"="{8EEFA624-D1E9-445B-94B7-74FBCE2EA11A}""Mode"=dword:00000007 )

help????

thanks again
Yaron

Ask not what your application can do for you,
Ask what you can do for your application

Re: launching windows exploere in 'Film Strip' mode

Sheng Jiang 蒋晟15-Nov-05 8:08

Sheng Jiang 蒋晟

15-Nov-05 8:08

<code>
//my sample code from http://www.codeproject.com/shell/AutomateShellWindow.asp

CComQIPtr<IServiceProvider> psp(m_pWebBrowser2);
CComPtr<IShellBrowser> psb;
CComPtr<IShellView> psv;
if(psp)
psp->QueryService(SID_STopLevelBrowser,
IID_IShellBrowser,(LPVOID*)&psb);
if(psb)
psb->QueryActiveShellView(&psv);
if(psv)
{
//new code here
CComPtr<IFolderView> pfv(psv);
if(pfv) pfv->SetCurrentViewMode(FVM_THUMBSTRIP);
//end new code
</code>

My blogs:

http://blog.joycode.com/jiangsheng
http://blog.csdn.net/jiangsheng
http://bloglines.com/public/jiangsheng

Command what is yours
Conquer what is not
---Kane

-- modified at 14:11 Tuesday 15th November, 2005

Re: launching windows exploere in 'Film Strip' mode

YaronNir15-Nov-05 22:12

YaronNir

15-Nov-05 22:12

thanks for the reply

the above code doesn't compile due to

CComPtr<IFolderView> pfv(psv);

i use VC7 DOTNET 2003....

any suggestion?

Ask not what your application can do for you,
Ask what you can do for your application

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