diff options
Diffstat (limited to 'trunk/ext/dl/win32/lib/Win32API.rb')
-rw-r--r-- | trunk/ext/dl/win32/lib/Win32API.rb | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/trunk/ext/dl/win32/lib/Win32API.rb b/trunk/ext/dl/win32/lib/Win32API.rb new file mode 100644 index 0000000000..b642e0c8fe --- /dev/null +++ b/trunk/ext/dl/win32/lib/Win32API.rb @@ -0,0 +1,28 @@ +# -*- ruby -*- +# for backward compatibility +warn "Warning:#{caller[0].sub(/:in `.*'\z/, '')}: Win32API is deprecated after Ruby 1.9.1; use dl directly instead" if $VERBOSE + +require 'dl' + +class Win32API + DLL = {} + TYPEMAP = {"0" => DL::TYPE_VOID, "S" => DL::TYPE_VOIDP, "I" => DL::TYPE_LONG} + + def initialize(dllname, func, import, export = "0") + @proto = [import].join.tr("VPpNnLlIi", "0SSI").sub(/^(.)0*$/, '\1') + handle = DLL[dllname] ||= DL.dlopen(dllname) + @func = DL::CFunc.new(handle[func], TYPEMAP[export.tr("VPpNnLlIi", "0SSI")], func) + end + + def call(*args) + import = @proto.split("") + args.each_with_index do |x, i| + args[i], = [x == 0 ? nil : x].pack("p").unpack("l!*") if import[i] == "S" + args[i], = [x].pack("I").unpack("i") if import[i] == "I" + end + ret, = @func.call(args) + return ret || 0 + end + + alias Call call +end |