Enumerate all of the icons and their positions on your desktop

main.cpp

#include <iostream>

#define _WIN32_WINNT 0x0500
#include <windows.h>
#include <commctrl.h>
#include <winuser.h>
#include <tchar.h>

HWND GetDesktopListViewHWND()
{
    HWND hDesktopListView = NULL;
    HWND hWorkerW = NULL;
    HWND hProgman = FindWindow(_T("Progman"), 0);
    HWND hDesktopWnd = GetDesktopWindow();

    if (hProgman) {
        HWND hShellViewWin = FindWindowEx(hProgman, 0, _T("SHELLDLL_DefView"), 0);
        if (hShellViewWin) {
            hDesktopListView = FindWindowEx(hShellViewWin, 0, _T("SysListView32"), 0);
        } else {
            do {
                hWorkerW = FindWindowEx( hDesktopWnd, hWorkerW, _T("WorkerW"), NULL );
                hShellViewWin = FindWindowEx(hWorkerW, 0, _T("SHELLDLL_DefView"), 0);
            } while (hShellViewWin == NULL && hWorkerW != NULL);
        }

        hDesktopListView = FindWindowEx(hShellViewWin, 0, _T("SysListView32"), 0);
    }

    return hDesktopListView;
}

int main()
{
    HWND hDesktopListView = GetDesktopListViewHWND();

    unsigned long processId;
    GetWindowThreadProcessId(hDesktopListView, &processId);

    DWORD procFlags = PROCESS_VM_OPERATION|PROCESS_VM_READ|PROCESS_VM_WRITE|PROCESS_QUERY_INFORMATION;
    HANDLE process = OpenProcess(procFlags, FALSE, processId);

    POINT *_pt = (POINT*)VirtualAllocEx(process, NULL, sizeof(POINT), MEM_COMMIT, PAGE_READWRITE);

    std::cout << hDesktopListView << std::endl;

    int icons = (int)SendMessage(hDesktopListView, LVM_GETITEMCOUNT, NULL, NULL);
    std::cout << "Items: " << icons << std::endl;

    for (int i=0; i<icons; i++) {
        POINT point;
        WriteProcessMemory(process, _pt, &point, sizeof(POINT), NULL);
        SendMessage(hDesktopListView, LVM_GETITEMPOSITION, (WPARAM)i, (LPARAM)_pt);
        ReadProcessMemory(process, _pt, &point, sizeof(POINT), NULL);
        std::cout << "Icon: " << i << " - (" << point.x << "," << point.y << ")" << std::endl;
    }

    return 0;
}