private static void TestPresenceOfPNGOptimizer()
{
try
{
string lastError = PngOptimizerDll.GetLastErrorString();
optimizerPresent = true;
}
catch (DllNotFoundException)
{
optimizerPresent = false;
}
}
private static byte[] OptimizePNGByteArray(byte[] input)
{
byte[] result = new byte[input.Length + 400000]; // As seen in the test app for PNG optimizer DLL
int resultSize = 0;
bool optimized = PngOptimizerDll.OptimizeFileMem(input, input.Length, result, result.Length, out resultSize);
if (optimized && resultSize < input.Length)
{
byte[] optimizedPNG = new byte[resultSize];
Array.Copy(result, optimizedPNG, resultSize);
return(optimizedPNG);
}
else
{
return(input);
}
}
