Re: Adding ActiveX Control Container to Win32 Window - C / C++ / MFC Discussion Boards

Re: Adding ActiveX Control Container to Win32 Window

snacker226-May-09 14:12

26-May-09 14:12

Oh wait... looks like there is a VS 2008 example.

ATLCON Attributes Sample: Demonstrates Creating a Simple Container[^]

ATLCON Sample: Demonstrates Creating a Simple Container[^]

I'll try these Smile | :)

Re: Adding ActiveX Control Container to Win32 Window

snacker226-May-09 14:18

snacker2

26-May-09 14:18

Bummer... the atlcon samples that come with vs 2008 msdn install don't work either Frown | :(

C:\Program Files\Microsoft Visual Studio 9.0\Samples\1033\AllVCLanguageSamples\C++\ATL\General\AtlCon

Re: Adding ActiveX Control Container to Win32 Window

snacker226-May-09 14:21

snacker2

26-May-09 14:21

I'll see if I can create a new project with the ATL & MFC support options selected and add the source files to it.

Perhaps that will work... Confused | :confused:

Re: Adding ActiveX Control Container to Win32 Window

Stuart Dootson26-May-09 14:32

Stuart Dootson

26-May-09 14:32

Worked for me - but I did notice that the default configuration was "Debug Itanium" - I suspect that a) you don't have an Itanium chip in your PC, and b) you don't have the Itanium cross-compilers installed, so if that's the configuration you've got, try the Win32 configuration Smile | :)

I couldn't try it with an Adobe Reader control - I don't have Adobe Reader installed on my Windows VM on my Mac - OS X's Preview app does the job of reading PDFs better and more quickly Smile | :)

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Adding ActiveX Control Container to Win32 Window

snacker227-May-09 7:08

snacker2

27-May-09 7:08

DOH!

I didn't see the "Itanium" setting.
I switched it to "win32" and it compiles and runs!

Thanks for your help!

I'm going to take a closer look at this to see if I can figure out how to get this to work in a win32 HWND now.

Again, thanks for your help!

Re: Adding ActiveX Control Container to Win32 Window

Stuart Dootson26-May-09 14:19

Stuart Dootson

26-May-09 14:19

Sorry - thought I'd pointed you at a VS2008 sample Blush | :O

Not sure why the sample requires ATL Server - but it was open-sourced and can be downloaded on CodePlex[^]. It was probably for some utility class that did actually get moved to ATL.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Adding ActiveX Control Container to Win32 Window

snacker231-May-09 18:22

snacker2

31-May-09 18:22

I am able to get the ActiveX control to load now.
The thing that made this work was using

hr = AtlAxCreateControl( OLESTR( "c:\\test.pdf" ), pThreadParam->hwnd, NULL, &pUnk );

instead of using ::CreateWindow(...) or trying to use AtlAxWindow().

HOWEVER (darn it!) when I close the application window I get an access violation in the message loop:

while( 1 )
{
    rv = GetMessage(&msg, NULL, NULL, NULL) ;
    rv = TranslateMessage(&msg);
    rv = DispatchMessage(&msg);
}

It is erroring in the call to "GetMessage(...)".
I thought it might be that I need to send a WM_CLOSE message before the main window closes, but that doesn't help.
If I send WM_CLOSE it seems to cause an access violation in a different thread of the main application.
I tried breaking out of the message loop if WM_CLOSE (or some other event) is detected, but that just caused the app to hang (as I would expect).

Is there any way to unload the ActiveX control from the win32 cleanly?
I'm sure there is a way, I'm just not seeing it.

I can send source code if that would be useful.
I which I could attach it instead of inlining it though.

Re: Adding ActiveX Control Container to Win32 Window

Stuart Dootson31-May-09 21:42

Stuart Dootson

31-May-09 21:42

Did you ever Release that IUnknown pointer you got back in pUnk? If not, the control will likely think it's meant to stick around, as its reference count never gets to zero. That could cause issues.

snacker2 wrote:
I get an access violation in the message loop

Where exactly (look at the call-stack)

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Adding ActiveX Control Container to Win32 Window

snacker21-Jun-09 20:38

snacker2

1-Jun-09 20:38

I was saving the reference in memory and calling release just before the window is closed.

But now...

I changed it to call Release().
Here is how I am creating the control (changed to use a url):

VOID CreateControl( HWND hwnd )
{

    HRESULT hr = CoInitialize( NULL );
    printf( "CoInitialize(NULL) -> hr=[0x%x]\n", hr );
    printf( "Create AtlAxWin Begin...[0x%x]\n", hwnd );

    BOOL rslt = AtlAxWinInit();
    printf( " AtlAxWinInit() --> %d\n", rslt );

    IUnknown *pUnk = NULL;

    hr = AtlAxCreateControl( OLESTR( "http://www.microsoft.com" ), hwnd, NULL, &pUnk );
    printf( "AtlAxCreateControl(...) -> hr=[0x%x] : pUnk=[0x%x]\n", hr, pUnk );

    ULONG relRslt = pUnk->Release();
    printf( "Release() -> %d\n", relRslt );

}

Here is the output:

CoInitialize(NULL) -> hr=[0x0]
Create AtlAxWin Begin...[0x150dac]
 AtlAxWinInit() --> 1
AtlAxCreateControl(...) -> hr=[0x0] : pUnk=[0x3233e30]
Release() -> 7

Although the "Release()" is returning 7, it appears to be working... ONLY if I send WM_CLOSE to the HWND prior to closing the window.

However, I don't think I want to close the HWND in all cases.

Is there a way to just remove or unload the control, so the HWND can be reused?

In fact if I use Adobe Reader via specifying c:\test.pdf it works until I shutdown the application.
At the end of the app I get an access violation:

>	Multimedia.api!2d80acf5()
 	[Frames below may be incorrect and/or missing, no symbols loaded for Multimedia.api]
 	msvcr80.dll!04932bd9()
 	Multimedia.api!2d83e2a5()
 	Multimedia.api!2d802cc0()
 	Multimedia.api!2d80c885()
 	Multimedia.api!2d80123c()
 	Multimedia.api!2d8b3698()
 	Multimedia.api!2d80101d()
 	ntdll.dll!7c90118a()
 	ntdll.dll!7c923ada()
 	ntdll.dll!7c910435()
 	ntdll.dll!7c90eb99()
 	kernel32.dll!7c81cb26()
 	java.exe!004071b4()
 	java.exe!004072f3()
 	java.exe!00407319()
 	java.exe!004087cb()
 	kernel32.dll!7c817077()
 	java.exe!00410072()
 	java.exe!00410072()
 	java.exe!00410072()
 	java.exe!00410072()

I'm guessing the java vm doesn't know about the win32 HWND being "closed"... but that's just a guess?

Re: Adding ActiveX Control Container to Win32 Window

snacker21-Jun-09 20:42

snacker2

1-Jun-09 20:42

However... perhaps I could create a child window which is just a child to the HWND passed in?
Perhaps that would prevent the jvm crashing at the end?

Re: Adding ActiveX Control Container to Win32 Window

Stuart Dootson1-Jun-09 20:49

Stuart Dootson

1-Jun-09 20:49

snacker2 wrote:
HWND passed in

What is that HWND? Is it the dialog HWND? Because really, it needs to be the HWND of a window whose ONLY responsibility is containing the ActiveX control. As I said, what I did was to create a STATIC control with no text, then pass its HWND to the ActiveX creation function. Then, when the dialog closes, it closes the STATIC's window for me, I don't need to do anything.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Adding ActiveX Control Container to Win32 Window

snacker25-Jun-09 7:51

snacker2

5-Jun-09 7:51

The HWND is the handle for a java.awt.Canvas.

I'm getting the HWND as is documented in the jni docs which is shown here:
Implement the C++ native code[^]

The create function you're referring to is AtlAxCreateControl( OLESTR( "http://www.microsoft.com" ), hwnd, NULL, &pUnk ), correct?

What do you mean "with no text"?

So it looks like I need to create a new window as a child of the HWND I'm getting from the java.awt.Canvas and create the control on that window instead of the one from java...?

(thanks again for your help with this)

Re: Adding ActiveX Control Container to Win32 Window

Stuart Dootson5-Jun-09 7:57

Stuart Dootson

5-Jun-09 7:57

snacker2 wrote:
What do you mean "with no text"?

I mean I didn't add any text to the static text control - probably of little relevance.

snacker2 wrote:
The create function you're referring to is AtlAxCreateControl( OLESTR( "http://www.microsoft.com" ), hwnd, NULL, &pUnk ), correct?

Yep - I used a different first parameter (I passed the progid of the calendar ActiveX control - but that (again) is of little relevance.

snacker2 wrote:
So it looks like I need to create a new window as a child of the HWND I'm getting from the java.awt.Canvas and create the control on that window instead of the one from java...?

That's what I'm suggesting.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Adding ActiveX Control Container to Win32 Window

Stuart Dootson1-Jun-09 20:52

Stuart Dootson

1-Jun-09 20:52

snacker2 wrote:
I was saving the reference in memory and calling release just before the window is closed.

But now...

I changed it to call Release().
Here is how I am creating the control (changed to use a url):

If you don't use the IUnknown pointer for anything, then just pass in NULL instead of &pUnk - you don't need the pointer.

snacker2 wrote:
Although the "Release()" is returning 7

Implementation leakage - when Release returns 7, that shows there are still 7 references to the interface being held somewhere[^].

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Re: Adding ActiveX Control Container to Win32 Window

snacker25-Jun-09 7:55

snacker2

5-Jun-09 7:55

I will try passing NULL.

I am confused as to why it was returning 7 instead of zero, but I assumed it was because at least the control container and control itself had references to it.

I will take a look at the link you sent.

Appending a number to the end of a string to display in GLUI_ EDITTEXT_TEXT Box?

bushimports26-May-09 11:41

bushimports

26-May-09 11:41

What I am trying to do is when I click a button it draws a cube or whatever and displays the name of the object in a
GLUI_EDITTEXT_TEXT box.I also want to append a number to the end of the object name and increment the number each time a new object is drawn. I have everything working ok except the name and number will only display one character at a time in the textbox and increments the position each time the draw button is pushed. Much Thanks to anyone who will/can help with this. Jody Bush
Below is part of the code I have for this thing.

//My variables
int Cnum = 1;
int Pnum = 1;
char Cube[sizeof(GLUI_String)] ={" "};
char Plane[sizeof(GLUI_String)] ={" "};
char Name;

//my glui edittext 
Name1 = subwin->add_edittext( "Name", GLUI_EDITTEXT_TEXT,&Name); 

//my callback functions
if(control == DRAWPLANE_ID){
drawplane = true;
sizex = 1.0;
sizey = 1.0;
sizez = 0.0;
itoa(Pnum, Plane, 10);
sprintf(Plane,"Plane %d",Cnum);
Name = Plane[Pnum];
Name1->get_text();
Pnum++;
}

if(control == DRAWCUBE_ID){
drawcube = true;
sizex = 1.0;
sizey = 1.0;
sizez = 1.0;
itoa(Cnum, Cube, 10);
sprintf(Cube,"Cube %d",Cnum);
Name = Cube[Cnum];
Name1->get_text(); 
Cnum++;
}

Re: Appending a number to the end of a string to display in GLUI_ EDITTEXT_TEXT Box?

Stuart Dootson26-May-09 12:56

Stuart Dootson

26-May-09 12:56

bushimports wrote:
I have everything working ok except the name and number will only display one character at a time in the textbox and increments the position each time the draw button is pushed

I think your problem is that you're only passing in one character to the add_edittext call. I don't know what the signature of the method is, but &Name can only refer to a single character (and then, so long as a coincidence of code generation puts zero bytes on the stack.

Anyway I think the problem would probably be solved by

Declaring Name as char* Name;

Changing how you assign Name, from

Name = Plane[Pnum];

and

Name = Cube[Cnum];

Name = Plane;

and

Name = Cube;

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

How to save javascript file

yunpil26-May-09 11:22

yunpil

26-May-09 11:22

How to save on javascript Type the 'IDC_LAT'values in NMEAParserDemo Dialogbase

source

Re: How to save javascript file

David Crow26-May-09 17:00

David Crow

26-May-09 17:00

yunpil wrote:
How to save on javascript Type the 'IDC_LAT'values in NMEAParserDemo Dialogbase

That's a very good question. Good luck with it.

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Re: How to save javascript file

ThatsAlok26-May-09 22:13

ThatsAlok

26-May-09 22:13

can you try urself, and post your problem here, instead of posting whole code!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
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get the differents data from a list control

MrKBA26-May-09 8:55

MrKBA

26-May-09 8:55

Hello,

I try to get the different data for each row in a list control (CListCtrl), more explain i need to put data refer to each row in a table so how can i do this!!!

Thank you for your help.

Re: get the differents data from a list control

David Crow26-May-09 9:09

David Crow

26-May-09 9:09