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Earlier my application had buttons being created from object of class derived from CBitmapButton class ,but after I derived the class from CExtButton class the buttons are getting created but the icons are not loaded when the application starts i.e. the buttons are not showing.

for profile set up i have written this code:
HINSTANCE hInstResource =AfxFindResourceHandle(MAKEINTRESOURCE(IDB_SABINS_BSW_PARTS_ACTIVE ),
RT_GROUP_ICON);
ASSERT( hInstResource != NULL );
HICON hIcon = (HICON)::LoadImage(hInstResource,MAKEINTRESOURCE(IDB_SABINS_BSW_PARTS_ACTIVE ),
IMAGE_ICON,16,16,0);
ASSERT( hIcon != NULL );
SetIcon( hIcon, FALSE );
CWinApp * pApp = ::AfxGetApp();
ASSERT( pApp != NULL );

//The command manager is a key global object in Prof-UIS. Registering the commands in it.
// is neccesary .This needs to be done at CMainFrame::OnCreate () method:
g_CmdManager->ProfileSetup(pApp->m_pszProfileName,GetSafeHwnd());

VERIFY(g_CmdManager->ProfileWndAdd(pApp->m_pszProfileName,GetSafeHwnd()));
VERIFY(g_CmdManager->CmdSetIcon(pApp->m_pszProfileName,IDB_SABINS_BSW_PARTS_ACTIVE,hIcon,FALSE ));
// VERIFY(g_CmdManager->UpdateFromMenu(pApp->m_pszProfileName,IDB_SABINS_CONTROL_BITMAP ));



and fro creating the buttons I wrote this one::

if (!m_abtnParts.Create("Parts", BS_PUSHBUTTON | BS_OWNERDRAW,
rect, this, IDC_SABINS_BSW_PARTS))    
    
{
throw new CSa_Exception(SABINS_CAT_INTERNAL_ERROR,
SABINS_E_CREATE_BSW_PARTS);
}


it is throwing some debug assertion error

Please guide me in this regard

Please let us know if you are using the CExtButton::SetIcon() method to associate an icon with the button?

ya we are using SetIcon method, but simply we are not getting the correct way to do it. Could you please let us know. What we are getting is simply an empty bar w/o any empty button also.

Where are you using the button? Is it a push button on a dialog or on a toolbar? Here is the code form the Prof-UIS_Controls sample that assigns an icon to the push button. You can use this code in your project.

m_btnPushButton.m_icon.AssignFromHICON(
	(HICON) ::LoadImage(
		::AfxGetInstanceHandle(),
		MAKEINTRESOURCE(IDI_NOTEPAD),
		IMAGE_ICON,
		48,
		48,
		0
		),
	false
	);