Toolkit Pro - Get HICON from XTPImageManager

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Get HICON from XTPImageManager

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Category: Codejock Products
Forum Name: Toolkit Pro
Forum Description: Topics Related to Codejock Toolkit Pro
URL: http://forum.codejock.com/forum_posts.asp?TID=16605
Printed Date: 16 July 2025 at 2:15pm
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Topic: Get HICON from XTPImageManager

Posted By: jimmy
Subject: Get HICON from XTPImageManager
Date Posted: 16 April 2010 at 7:01am

Hello,

have some trouble after change from V11.1.3 to V14.0.0Beta.

i add a Toolbar to XTPImageManager.
than i will get a HICON, but it return NULL.

add this lines
CXTPImageManagerIcon* pIcon = pCommandBars->GetImageManager()->GetImage(ID_COLOR_FORE);
HICON hIcon1 = pIcon->GetIcon();

after
line: pCommandBars->GetImageManager()->SetIcons(IDR_TOOLBAR_COLOR);
in CommandBarControls Sample (MainFrm.cpp).

hIcon1 is NULL.

Any solution to retrieve HICON ?

Thanks
Jimmy

Replies:

Posted By: znakeeye
Date Posted: 23 April 2010 at 6:11am

Later versions store icons as one single image to decrease GDI resource usage. Try something like this:

BOOL IconFromPNG(HINSTANCE hInstance, UINT nResourceID, CXTPImageManagerIconHandle &hIconHandle)
{
hIconHandle.Clear();

    BOOL bAlphaBitmap = FALSE;
    HBITMAP hBitmap = CXTPImageManagerIcon::LoadBitmapFromResource(hInstance, MAKEINTRESOURCE(nResourceID), &bAlphaBitmap);
    if (hBitmap)
    {
        if (bAlphaBitmap)
        {
            hIconHandle = hBitmap; // Will call DeleteObject;
        }
        else
        {
            CBitmap bmpIcon;
            bmpIcon.Attach(hBitmap);
            // Convert the bitmap to a transparent icon.
            HICON hIcon = CXTPTransparentBitmap(bmpIcon).ConvertToIcon();
            hIconHandle = hIcon; // Will call DestoyIcon.
        }
    }

    return !hIconHandle.IsEmpty();
}

-------------
PokerMemento - http://www.pokermemento.com/

Posted By: jimmy
Date Posted: 23 April 2010 at 8:10am

Hello,

Thanks for answer.
But this doesn't help.
My old function use this for fill a own CImageList (with ID's) with
using ImageManager to Load from toolbar (with id's).
Now i have add my own function loading toolbar id's.

But i think, it's not correct from CJ to return no ICON.
CJ can remove this function an can add a new function.
CXTPImageManagerIcon* pIcon = pCommandBars->GetImageManager()->GetImage(ID_COLOR_FORE);
HICON hIcon1 = pIcon->CreateIcon();

Jimmy

Posted By: jimmy
Date Posted: 20 September 2010 at 9:08am

Hello,

Any solution for this ?
We add all your bmp, ico, Toolbar icons, ... to the ImageManager.
But how can i get a HICON from the ImageManager ?
I'll add the Icon to a dialog.

Jimmy

Posted By: Oleg
Date Posted: 27 September 2010 at 7:30am

Hi,

Yes, now all icons locates in single GDI object.

Please copy it first when you need single icon:

CXTPImageManagerIcon* pIcon = pCommandBars->GetImageManager()->GetImage(ID_COLOR_FORE);

CXTPImageManagerIconHandle handle;

handle.CopyHandle(pIcon->GetIcon());

HICON hIcon1 = handle;

-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS

Posted By: jimmy
Date Posted: 27 September 2010 at 11:02am

Hello Oleg,

Thanks for answer, that work great.
i've a little wish.
please add
    HICON Detach()
    {
        HICON hIcon = m_hIcon;
        m_hIcon = NULL;
        return hIcon;
    }
to CXTPImageManagerIconHandle class.

Thanks
Jimmy

Posted By: Oleg
Date Posted: 28 September 2010 at 12:58am

Hi,

Added.

-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS

Posted By: jimmy
Date Posted: 28 September 2010 at 3:30am

Great,

Thanks Oleg.

Jimmy

Posted By: jimmy
Date Posted: 01 October 2010 at 2:18am

Hi Oleg,

Have one more trouble with this.
CopyHandle does not create a HICON, if the ImageIcon is a alpha bitmap.

Now we use this.

static HICON CreateAlphaIcon(HBITMAP hBitmap, DWORD dwWidth,
DWORD dwHeight)
{
// dwWidth & Height could be extract from HBITMAP

	// Create an empty mask bitmap.
	HBITMAP hMonoBitmap = CreateBitmap(dwWidth, dwHeight, 1, 1, NULL);

	// Fill icon info.
	ICONINFO ii;
	ii.fIcon = TRUE;
	ii.xHotspot = 0;
	ii.yHotspot = 0;
	ii.hbmMask = hMonoBitmap;
	ii.hbmColor = hBitmap;

	// Create the alpha icon with the alpha DIB section.
	HICON hAlphaIcon = CreateIconIndirect(&ii);

	// Delete mask bitmap.
	DeleteObject(hMonoBitmap);

	return hAlphaIcon;
}

class CXTPImageManagerIconHandleEx : public CXTPImageManagerIconHandle
{
public:
	HICON CreateIcon()
	{
		//
		if (m_hIcon == NULL)
		{
			// Temporären Handle (Kopie) erzeugen.
			CXTPImageManagerIconHandleEx temp;
			temp.CopyHandle(*this);

			// Wurde die Bitmap bereits in ein Icon konvertiert?
			if (temp.GetIcon() != NULL)
				// Das HICON extrahieren und setzen.
				m_hIcon = temp.Detach();
			// Gibt es nur ein Bitmap, dann handelt es sich um  ein Bitmap mit Alpha
Channel.
			else if (temp.GetBitmap() != NULL)
				// Konvertieren des Alpha Bitmaps in ein Icon und setzen des Handle.
				m_hIcon = CreateAlphaIcon(temp.GetBitmap(), temp.GetExtent().cx, temp.GetExtent().cy);
			else
				_ASSERTE(FALSE && _T("Bitmap couldn't be converted into Icon"));
		}
		return m_hIcon;
	} 
        HICON Detach()
	{
		HICON hIcon = m_hIcon;
		m_hIcon = NULL;
		return hIcon;
	}
};

Please can you add also the code to create a HICON from alpha bitmap.

Thanks
  Jimmy