If cursor was created via CreateCursor/CreateIconIndirect/CreateIconFromResource/CreateIconFromResourceEx call then there is only one instance of HICON and you can get bitmap from it with GetIconInfoEx/GetIconInfoEx call (as you already doing).

But if cursor was loaded from file or resource via for LoadCursor/LoadImage then you can try to get ICONINFOEX structure with GetIconInfoEx and then use wResID/szModName/szResName in LoadImage call with desired size (DPI-aware).

Something like:

UINT dpi = GetDpiForWindow(hWnd);
INT x = GetSystemMetricsForDpi(SM_CXICON, dpi);
INT y = GetSystemMetricsForDpi(SM_CYICON, dpi);

ICONINFOEX iconInfoEx = {0};
GetIconInfoEx(hIcon, &iconInfoEx);
HMODULE hModule = GetModuleHandle(iconInfoEx.szModName);

HCURSOR hCursor = LoadImage(hModule, iconInfoEx.szResName != NULL ? iconInfoEx.szResName : MAKEINTRESOURCE(iconInfoEx.wResID), x, y, LR_DEFAULTSIZE);

Some info on this topic in Raymond Chen blog:

• Icons and cursors know where they came from
• Why is my icon being drawn at the wrong size when I call DrawIcon?
• Why does the DrawIcon function draw at the default icon size?