I am unable to change the bitmap images dispayed on an outlookbar style propertysheet

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Win32

MFC

C++17

I am using an outlookbar style property sheet with 3 property pages as the main window of my application.I am unable to change the bitmap icons displayed on the property sheet.I have given code here which isn't working. Please suggest any strategy to change the bitmap icons.You can ignore the code any other approach is welcome.

The following is the way the property sheet is initialized:

//In iniinstance first time the property sheet is created
CBitmap bmpimgs[3];
int retval;

bmpimgs[0].LoadBitmapA(IDB_BITMAP77);
bmpimgs[1].LoadBitmapA(IDB_BITMAP81);
bmpimgs[2].LoadBitmapA(IDB_BITMAP79);

retval = m_PropSht.m_shtSelImages.Create(80, 80, ILC_COLOR24 | ILC_MASK, 1, 1);
retval = m_PropSht.m_shtSelImages.Add(&bmpimgs[0], RGB(128, 128, 128));
retval = m_PropSht.m_shtSelImages.Add(&bmpimgs[1], RGB(128, 128, 128));
retval = m_PropSht.m_shtSelImages.Add(&bmpimgs[2], RGB(128, 128, 128));

m_PropSht.SetIconsList(m_PropSht.m_shtSelImages.m_hImageList);

m_PropSht.SetLook(CMFCPropertySheet::PropSheetLook_OutlookBar, 80);

What I have tried:

I have created a function called ChangeImageList to change the image list associated with the property sheet. I get a failed assertion error when I try to call
SetIconsList function with the changed image list.

//This is called after property sheet creation from OnSetActive function of the //property pages
void AppPropSheet::ChangeImgList(int sel)
{
//AppPropSheet is derived from CMFCPropertySheet
//m_shtSelImages is a member variable of AppPropertySheet of type CImageList

	
	static bool firsttime = true;
	CBitmap bmpimgs[3],bmpmask;
	int retval;



	if (sel == 0)
		bmpimgs[0].LoadBitmapA(IDB_BITMAP87);
	else
		bmpimgs[0].LoadBitmapA(IDB_BITMAP77);

	if (sel == 1)
		bmpimgs[1].LoadBitmapA(IDB_BITMAP86);
	else
		bmpimgs[1].LoadBitmapA(IDB_BITMAP81);

	if (sel == 2)
		bmpimgs[2].LoadBitmapA(IDB_BITMAP88);
	else
		bmpimgs[2].LoadBitmapA(IDB_BITMAP79);
	
	
	m_shtSelImages.Remove(2);
	m_shtSelImages.Remove(1);
	m_shtSelImages.Remove(0);
		
	ImageList_Destroy(m_shtSelImages.m_hImageList);
	retval = m_shtSelImages.Create(81, 81, ILC_COLOR24 | ILC_MASK, 1, 1);
		
	retval=m_shtSelImages.Add(&bmpimgs[0],RGB(128,128,128));
	retval=m_shtSelImages.Add(&bmpimgs[1], RGB(128, 128, 128));
	retval=m_shtSelImages.Add(&bmpimgs[2], RGB(255, 255, 255));
		
	SetIconsList(m_shtSelImages.m_hImageList);//I get an assertion here
 	                                          //ENSURE(GetSafeHwnd==NULL)
                                              // in function SetIconsList
                                              //inside afxpropertysheet.cpp
	GetTabControl()->Invalidate();
	RedrawWindow();
	
}