How to add images to toolbar buttons for activex control mscomctl.ocx

//#import "c:\windows\SysWow64\mscomctl.ocx" raw_interfaces_only //in window7

using namespace MSComctlLib;
CComPtr<IButtons> pButtons;
CComPtr<IButton> pButton;
CComPtr<IImages> pImages;
CComPtr<IImage> pImage;
CComPtr<IDispatch> pDisp;

HRESULT hr = m_pToolbar->get_Buttons(&pButtons);
hr = pButtons->Add(NULL,NULL,NULL,NULL,NULL,&pButton);

hr = m_pImageList->get_ListImages(&pImages);
CComVariant vrIndex(1),vrImage;
hr = pImages->get_Item(&vrIndex,&pImage);//I added 3 images to imagelist

hr = pImage->QueryInterface(&pDisp);
vrImage = pDisp;

hr = pButton->put_Image(vrImage);//hr = 0x800a8b1d, why?!

Why don"t you want to use try/catch blocks to handle the possible exceptions and then obtain the error info?
See example in http://msdn.microsoft.com/en-us/libr...(v=vs.85).aspx

I got the error description like this
"ImageList must be initialized before it can be used"
But how to correct?

I have no idea what all these interfaces are but I guess there is some documentation about how to use them...

Quote:

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Originally Posted by shjdr7

CComVariant vrIndex(1),vrImage;
hr = pImages->get_Item(&vrIndex,&pImage);//I added 3 images to imagelist

hr = pImage->QueryInterface(&pDisp);
vrImage = pDisp;

hr = pButton->put_Image(vrImage);//hr = 0x800a8b1d, why?!

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I believe it's quite obvious:

Quote:

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System.Runtime.InteropServices.COMException (0x800A8B1D): ImageList must be initialized before it can be used

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So, somewhere it fails, but you never check where it happens.

I changed my code and then error message also changed
hr = m_pToolbar->put_ImageList(m_pImageList);// Added this line this time
hr = m_pButton->put_Image(vrImage);//I am getting error message "Invalid Key"
//I tried pImage->put_Key() also

Any idea?

Quote:

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Originally Posted by shjdr7

I changed my code and then error message also changed
...
Any idea?

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Well, trial and error method may be sometimes very useful. But not in your case!
Please, read the documentation and search for the code examples!

Quote:

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Originally Posted by VictorN

Well, trial and error method may be sometimes very useful. But not in your case!
Please, read the documentation and search for the code examples!

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Well, I got the answer.The correct code is as below

CComVariant vrIndex = 1;

m_pButton->put_Image(vrIndex );

Quote:

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Originally Posted by shjdr7

Well, I got the answer.The correct code is as below

CComVariant vrIndex = 1;

m_pButton->put_Image(vrIndex );

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Hmm...
Why is it 1, not 11 or 100?

To add the first image to a button that is the code

Do you check somewhere that imagelist contains an image with the index 1?

Images can be added to imagelist during design time or run time. Adding during design time is very easy.Please verify
yourself.
If you want code to add images run time, I can help it. First image has index 1(not 0)