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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
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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?
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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?
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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
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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)
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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
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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.
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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.
int Cnum = 1;
int Pnum = 1;
char Cube[sizeof(GLUI_String)] ={" "};
char Plane[sizeof(GLUI_String)] ={" "};
char Name;
Name1 = subwin->add_edittext( "Name", GLUI_EDITTEXT_TEXT,&Name);
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++;
}
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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];
to
Name = Plane;
and
Name = Cube;
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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How to save on javascript Type the 'IDC_LAT'values in NMEAParserDemo Dialogbase
source
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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.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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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
Support CRY- Child Relief and You
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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.
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Are you referring to the SetItemData() and GetItemData() methods?
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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yes i see them, but i couldn't used GetItemData() like i need.
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khaliloenit wrote: ...but i couldn't used GetItemData() like i need.
Why not?
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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i have some difficulties in the returned data.i need to get it in text format to insert them into xml file for example.
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khaliloenit wrote: i have some difficulties in the returned data.
It's the exact same data set with SetItemData().
TCHAR *pszBuffer = new TCHAR[12];
_tcscpy(pszBuffer, _T("Hello World"));
m_list.SetItemData(nItem, (DWORD) pszBuffer);
...
pszBuffer = (TCHAR *) m_list.GetItemData(nItem);
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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how do you use it ?
for example :
YourData* pData = new YourData;<br />
MyList.SetItemData( iIndex, (DWORD_PTR)yourdata);
...
YourData* pData = NULL;<br />
pData = (YourData*)MyList.GetItemData(iIndex);
This signature was proudly tested on animals.
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so how can use it to retrieve data in text format?
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show us the code with the SetItemData.
This signature was proudly tested on animals.
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It's simply a pointer to someplace in memory. How it's interpreted (e.g., char*, int*, class*, is up to you.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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Sorry, but have you an example how to get the row data into a string table for example witch i can try like it please.
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