/// <summary>
///passing SafeFileHandle subclass parameters to unmanaged code in various combinations and forms;
///it uses the PInvoke signatures defined above it
///1-passing SafeFileHandle subclass parameters individually in separate methods (In, out, ref)
///2-passing SafeFileHandle subclass parameters in combination in the same method
/// </summary>
public static void RunChildSHParamTests()
{
Console.WriteLine("\nRunChildSHParamTests():");
//1-passing SafeFileHandle subclass parameters individually in separate methods (In, out, ref)
//get a new SH
ChildSafeFileHandle hnd = Helper.NewChildSFH();
Int32 hndInt32 = Helper.SHInt32(hnd); //get the 32-bit value associated with hnd
Console.WriteLine("Testing SHParam_In...");
Assert.IsTrue(SHParam_In(hnd, hndInt32), "FAILED! SHParam_In did not receive hnd as expected.");
//check that the value of the HANDLE did not change
Assert.IsFalse(Helper.IsChanged(hnd), "FAILED! SHParam_In did not return hnd as expected.");
Console.WriteLine("Testing SHParam_Out...");
ChildSFH_NoCloseHandle hndout;
SHParam_Out(out hndout);
//check that the value of the HANDLE changed
Assert.IsTrue(Helper.IsChanged(hndout), "FAILED! SHParam_Out did not return hndout as expected.");
Console.WriteLine("Testing SHParam_OutRetVal...");
hndout = null;
hndout = SHParam_OutRetVal();
//check that the value of the HANDLE changed
Assert.IsTrue(Helper.IsChanged(hndout), "FAILED! SHParam_OutRetVal did not return hndout as expected.");
hndout = Helper.NewChildSFH_NoCloseHandle(); //get a new value
hndInt32 = Helper.SHInt32(hndout);
Console.WriteLine("Testing SHParam_Ref...");
Assert.IsTrue(SHParam_Ref(ref hndout, hndInt32), "FAILED! SHParam_Ref did not receive hndout as expected.");
//check that the value of the HANDLE changed
Assert.IsTrue(Helper.IsChanged(hndout), "FAILED! SHParam_Ref did not return hndout as expected.");
//2-passing SafeFileHandle subclass parameters in combination in the same method
//initialize parameters
ChildSafeFileHandle hnd1 = Helper.NewChildSFH();
Int32 hnd1Int32 = Helper.SHInt32(hnd1); //get the 32-bit value associated with hnd1
ChildSFH_NoCloseHandle hnd2 = null; //out parameter
ChildSFH_NoCloseHandle hnd3 = Helper.NewChildSFH_NoCloseHandle();
Int32 hnd3Int32 = Helper.SHInt32(hnd3); //get the 32-bit value associated with hnd3
Console.WriteLine("Testing SHParam_Multiple...");
Assert.IsTrue(SHParam_Multiple(hnd1, out hnd2, ref hnd3, hnd1Int32, hnd3Int32), "FAILED! SHParam_Multiple did not receive parameter(s) as expected.");
//check that the value of the HANDLES are as expected
Assert.IsFalse(Helper.IsChanged(hnd1), "FAILED! SHParam_Multiple did not return handle:hnd1 as expected.");
Assert.IsTrue(Helper.IsChanged(hnd2), "FAILED! SHParam_Multiple did not return handle:hnd2 as expected.");
Assert.IsTrue(Helper.IsChanged(hnd3), "FAILED! SHParam_Multiple did not return handle:hnd3 as expected.");
}
public static extern bool SHParam_Multiple([In] ChildSafeFileHandle sh1, out ChildSFH_NoCloseHandle sh2, ref ChildSFH_NoCloseHandle sh3, Int32 sh1Value, Int32 sh3Value);
public static extern bool SHParam_In([In] ChildSafeFileHandle sh1, Int32 sh1Value);