Function ResourceIndexToId

source/util.cpp:2543–2557

L17: Find ID of resource from one-based index. i.e. IconNumber -> resource ID. v1.1.22.05: Return LPTSTR since some (very few) icons have a string ID.

// L17: Find ID of resource from one-based index. i.e. IconNumber -> resource ID.
// v1.1.22.05: Return LPTSTR since some (very few) icons have a string ID.
LPTSTR ResourceIndexToId(HMODULE aModule, LPCTSTR aType, int aIndex)
{
	ResourceIndexToIdEnumData enum_data;
	enum_data.find_index = aIndex;
	enum_data.index = 0;
	// NULL can't be used to indicate "not found", as any value between 0 and 0xFFFF is an
	// integer ID, including zero, even though some compilers replace it with "0" (string).
	// (LPTSTR)-1 or "" could be used instead, but this method should be safest, since we
	// know the API cannot ever return a string at this address:
	enum_data.result = RESOURCE_ID_NOT_FOUND;

	EnumResourceNames(aModule, aType, &ResourceIndexToIdEnumProc, (LONG_PTR)&enum_data);

	return enum_data.result;
}

// L17: Extract icon of the appropriate size from an executable (or compatible) file.
HICON ExtractIconFromExecutable(LPTSTR aFilespec, int aIconNumber, int aWidth, int aHeight, HMODULE *apModule)