COM Discussion Boards

Re: How to get the IE container's HWND?

Member 6334809-Oct-03 17:37

Member 633480

9-Oct-03 17:37

Additive:I use vc2003 and ATL.
BTW:
1.How to resize the control?
2.How hide the control?i.e. not display

Is that possible use ActiveX get system info and give it to JScript?

Anonymous9-Oct-03 9:30

Anonymous

9-Oct-03 9:30

Hi All,
I need to download more than one files into a specific folder on the client machine. I want this specific folder is decided at the download time by searching system using activex then give the location name to jscript let it finish the download.
Does anybody know is this possible?

Thanks a lot

Rabbit

Re: Is that possible use ActiveX get system info and give it to JScript?

Heath Stewart16-Oct-03 11:32

Heath Stewart

16-Oct-03 11:32

Sure it's possible, if the ActiveX control has the right permissions. Therein likes the problem. You should sign the control with an Authenticode certificate, and you should also implement the IObjectSafety interface, as well as register the control in the CATID_SafeForScripting and CATID_SafeForInitializing categories.

The user's system is still in charge, though. Their Internet Explorer safety settings must allow your control to access the system. The things above will greatly help that. Just take a look at the security zones and their default permissions to see what will be allowed.

Then, create a class interface that inherits from IDispatch (late-binding, automation interface) that provides this system information. You can then access that information via client-side script.

-----BEGIN GEEK CODE BLOCK-----
Version: 3.21
GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++
-----END GEEK CODE BLOCK-----

Desperate help with Windows Media Format SDK

Emiliano9-Oct-03 5:24

Emiliano

9-Oct-03 5:24

I have been looking at the windows media format sdk for a while now, I am trying to extract the a bitmap file from a video sample. I have tried a few ways and i cant seem to find a solution to do this. I know its possible!! i am soooo stuck, any help on the this or the SDK would be a life saver!

please some one help!!

help with activex and vb.net

Mithun_Patel9-Oct-03 4:33

Mithun_Patel

9-Oct-03 4:33

alright, iv created an MFC activex control in vc++ 7 (.net) and i want to use it in a vb.net project. im extremely poor at vb and need step by step instructions on how to use this activeX control in the vb project. plz help.

help!!!!!!!!!!!!!

Mithun_Patel9-Oct-03 4:32

Mithun_Patel

9-Oct-03 4:32

Is it possible for a client application to inherit COM classes

siepaoling7-Oct-03 6:00

siepaoling

7-Oct-03 6:00

..like we do with an exported class from a dll ? Confused | :confused:

Using existing running programs instead of creating new ones

jparsons6-Oct-03 5:45

jparsons

6-Oct-03 5:45

When I click on a link in outlook it will do one of two things
1) If Internet Explorer is already open it will have the current open
browser open the link
2) If Internet explorer is not open it will open a new one and have it
open the link

I'm sure that #1 is done by some COM trick but I can't figure out how. Can anybody give me some insight into how this is done?

Jared
jparsons@jparsons.org
www.prism.gatech.edu/~gte477n

Re: Using existing running programs instead of creating new ones

valikac6-Oct-03 5:54

valikac

6-Oct-03 5:54

One possible solution is FindWindow().

Kuphryn

Re: Using existing running programs instead of creating new ones

Vi27-Oct-03 1:19

Vi2

7-Oct-03 1:19

It can be either a result of GetActiveObject|CoCreateInstance combination (or equivalents of VB's GetObject|CreateObject combination) or the binding of some moniker.

With best wishes,
Vita

Re: Using existing running programs instead of creating new ones

jparsons8-Oct-03 12:10

jparsons

8-Oct-03 12:10

I'm having trouble locating the API for GetActiveObject() Can you point me to a link somewhere? Thanks

Jared
jparsons@jparsons.org
www.prism.gatech.edu/~gte477n

Re: Using existing running programs instead of creating new ones

Vi210-Oct-03 3:36

Vi2

10-Oct-03 3:36

Platform SDK: Automation: GetActiveObject[^]

_com_ptr_t::GetActiveObject[^]

With best wishes,
Vita

How Adobe ActiveX Control is activated when We drop *.pdf file in Browser

Umesh Kr. Sharma6-Oct-03 5:44

Umesh Kr. Sharma

6-Oct-03 5:44

Hi,
Can anyone clearify how Adobe ActiveX Control is activated when U specify the URL as *.pdf(filename) or we Drag&Drop any *.PDF file into the Browser, it will load Adobe ActiveX control and display the document ?
I also have mine Control which displays the data present in some file of extension .XYZ .
Something I guessed that I have to register my control with IE registry entry..Iam not clear with all about.. Confused | :confused:

Can any one help me..

Umesh

Its ATTITUTE not APTITUDE that takes U to the ALTITUDE.

Re: How Adobe ActiveX Control is activated when We drop *.pdf file in Browser

Ernest Laurentin6-Oct-03 7:34

Ernest Laurentin

6-Oct-03 7:34

OleCreateFromFile holds the answer.

Re: How Adobe ActiveX Control is activated when We drop *.pdf file in Browser

Umesh Kr. Sharma7-Oct-03 1:12

Umesh Kr. Sharma

7-Oct-03 1:12

Hi Ernest Laurentin,
Thanks for reply.. Thats correct what U told. But still it doesn't solve my problems.
I want to know how explorer is getting info. that it has to initialize Adobe ActiveX control when Iam dragging any PDF file or specifying PDF file as URL.
Plz let me know if u can.

Umesh

Its ATTITUTE not APTITUDE that takes U to the ALTITUDE.

Re: How Adobe ActiveX Control is activated when We drop *.pdf file in Browser

igor196017-Oct-03 12:52

igor1960

17-Oct-03 12:52

.PDF is properly registered as MIME type supported by IE.
Check the following for more info:
http://support.microsoft.com/default.aspx?scid=kb;en-us;165072

"...Ability to type is not enough to become a Programmer. Unless you type in VB. But then again you have to type really fast..."
Me

Support for ActiveX in MFC projects

Ed016-Oct-03 2:24

Ed01

6-Oct-03 2:24

Hi,

I've created an MFC project (a Single document application) in Visual C++ 6.0 and I didn't check the "ActiveX support" box. And by now, I have to insert an ActiveX control in my project !

Of Course, It doesn't work... Cry | :((

So, is there a way to add Active X support without restarting my project from scratch ?

Thanks...

Re: Support for ActiveX in MFC projects

Steve S6-Oct-03 3:01

Steve S

6-Oct-03 3:01

Simplest way is to create two dummy projects, one just like your existing one, with no ActiveX support, and a second with the ActiveX support on.

Then just use WinDiff on the files (including the DSP) to see what changes you need to make.

Steve S

Re: Support for ActiveX in MFC projects

Ed016-Oct-03 3:20

Ed01

6-Oct-03 3:20

thanks, I won a lot of time...

For anyone who has the same problem, you just have to add AfxEnableControlContainer();
at the beginning of the InitInstance() function in your App class ! Big Grin | :-D

Accessing a file's properties from a VC++ application

jopett5-Oct-03 20:35

jopett

5-Oct-03 20:35

I am developing a small windows XP application that iterates over a set of files in a folder and extracts information from the files properties (right-click, select properties and then the summary tab) like title, summary etc.

The article Microsoft Knowledge Base Article - 186898 shows how to do this for compund docuemnts like Word documents and so on, using IPropertyStorage.

However, In my application, I access non-compound documents (jpeg-files mostly). They can also have attributes like the office files, but IPropertyStorage doesn't seem to be the right choice for finding the information. Does anyone have any excpreience with this?

Regards // Jonas Pettersson

Re: Accessing a file's properties from a VC++ application

algol14-Oct-03 21:59

algol

14-Oct-03 21:59

Try to replace StgOpenStorage with StgOpenStorageEx and STGFMT_FILE parameter, as described in MSDN article "IPropertySetStorage-NTFS File System Implementation".

COM Dialog box

Anthony98873-Oct-03 8:48

Anthony9887

3-Oct-03 8:48

I created a COM dll and inside one of the methods I create a thread(A) that creates a modeless dialog and a second thread(B)(Not from Thread A) that does some background work. My question is whenever I try to cancel(DestroyWindow()) the dialog I get an assertion error, I assuming it has to do with the second thread(B) updating the dialog box controls. I tried killing the threads(A and B), but still the same problem. I'm using AfxBeginThread and AfxEndThread. Is this approach good as I described above, or is there a better way of doing this.

Thanks

Re: COM Dialog box

Abhishek Srivastava19-Oct-03 21:01

Abhishek Srivastava

19-Oct-03 21:01

Hi there !!

Have u used , GetExitCodeThread() for killing ur thread, try to kill that thread first which is updating the Dialogbox controls, can u tell me exactly what assertion are u getting !!

Regards
Abhishek Srivastava Smile | :)

Abhishek Srivastava
Software Engg (VC++)
India ,Noida
Mobile no 9891492921 Smile | :)

Use of CommandButton Active X

Jo Fredrickson2-Oct-03 20:37

Jo Fredrickson

2-Oct-03 20:37

Hi,

I am using the Microsoft Forms 2.0 CommandButton activeX control in my own active x control. In order to set the text, I need to use the AtlAxGetControl() function call, but I am not sure how to declare the interface pointer. How do I know what the interface is called, such as

CComPtr<icommandbutton (this="" isn't="" right)=""> pButtonCtrl;
AtlAxGetControl( ..., &pButtonCtrl);

Otherwise, is there a simplier way to set the button text? SetDlgItemText() doesn't work.

Cheers,
Joanne
Cry | :((

Re: Use of CommandButton Active X

Amit Dey8-Oct-03 10:41

Amit Dey

8-Oct-03 10:41

I can host the Microsoft Forms2.0 control in a dialog and query it's ICommandButton interface and use it to set the Caption property.

//in stdafx.h

<br />
#import "FM20.dll" named_guids,rename("Picture","IPicture")<br />
using namespace MSForms;<br />

//OnInitDialog...

<br />
AtlAxWinInit();<br />
	CAxWindow wnd;<br />
	RECT rect = {10,10,100,50};<br />
	wnd.Create(m_hWnd, rect, _T("Forms.CommandButton.1"), <br />
	WS_CHILD|WS_VISIBLE|WS_TABSTOP, 0, IDC_CONTROL);  <br />
<br />
	CComPtr < ICommandButton > pDisp;<br />
	wnd.QueryControl( IID_ICommandButton,(LPVOID*)&pDisp);<br />
	ASSERT(pDisp);<br />
	CComBSTR bstrCaption(_T("My Button"));<br />
	pDisp->put_Caption(bstrCaption);<br />

amit

Hush,hush...
thought I heard you call my name now.

Kula Shaker.

Amit Dey
Latest articles at CP -
Writing Word addins
Office addin

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.