C / C++ / MFC

error C2664: 'CListCtrl::SortItems' : cannot convert parameter 1 from 'int (__stdcall CItemDlg::* )(LPARAM,LPARAM,LPARAM)' to 'PFNLVCOMPARE'

m_List.InsertColumn(0,"Name",100,100);
	m_List.InsertColumn(1,"Number",100,100);

	m_List.InsertItem(0,"Item1");
	m_List.SetItemText(0,1,"2");

	m_List.InsertItem(1,"Item2");
	m_List.SetItemText(1,1,"3");

	m_List.InsertItem(2,"Item3");
	m_List.SetItemText(2,1,"1");

// Sort items by associated lParam
int CALLBACK CItemDlg::MyCompareProc(LPARAM lParam1, LPARAM lParam2, 
	LPARAM lParamSort)
{
	UNREFERENCED_PARAMETER(lParamSort);

	return (int)(lParam1 - lParam2);
}

void CItemDlg::OnBnClickedButton1()
{
	m_List.SortItems(&CItemDlg::MyCompareProc, 0);
}

error C2664: 'CListCtrl::SortItems' : cannot convert parameter 1 from 'int (__stdcall CItemDlg::* )(LPARAM,LPARAM,LPARAM)' to 'PFNLVCOMPARE'

m_List.InsertColumn(0,"Name",100,100); // 100 is not a valid alignment
m_List.InsertColumn(1,"Number",100,100);
  
int x = m_List.InsertItem(0,"Item1");
m_List.SetItemText(x,1,"2");
  
x = m_List.InsertItem(1,"Item2");
m_List.SetItemText(x,1,"3");
  
x = m_List.InsertItem(2,"Item3");
m_List.SetItemText(x,1,"1");
  
int CALLBACK MyCompareProc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
{	
    UNREFERENCED_PARAMETER(lParamSort);	
    return (int)(lParam1 - lParam2); // this will be meaningless unless you call SetItemData()
}
  
void CItemDlg::OnBnClickedButton1()
{	
    m_List.SortItems(MyCompareProc, 0);
}

includeh10 wrote:

I need to get desktop rect, which excludes start-bar, how?

RECT rect;
SystemParametersInfo(SPI_GETWORKAREA, 0, &rect, 0);

RECT rect;
::GetWindowRect(::GetDesktopWindow(), &rect);

// MyClass.h
template<class C>
class MyClass {
public:
   int version() const { return 1; }
};

// someOtherFile_possiblyEvenWithinAnotherProject.h
#include "MyClass.h"
template <>
class MyClass<int> {
public:
   int version() const { return 2; }
};