public void GetClassInfo_NotRegistered()
{
Action action = () => WindowMethods.GetClassInfo(null, Path.GetRandomFileName());
action.ShouldThrow <IOException>().And
.HResult.Should().Be((int)ErrorMacros.HRESULT_FROM_WIN32(WindowsError.ERROR_CLASS_DOES_NOT_EXIST));
}
public void RegisterClass_UnregisterClassName()
{
WindowClass myClass = new WindowClass
{
ClassName = "RegisterClass_UnregisterClassName",
Style = ClassStyle.HorizontalRedraw,
WindowProcedure = CallDefaultProcedure
};
Atom atom = WindowMethods.RegisterClass(ref myClass);
atom.IsValid.Should().BeTrue();
try
{
var info = WindowMethods.GetClassInfo(ModuleMethods.GetModuleHandle(null), "RegisterClass_UnregisterClassName");
info.ClassName.Should().Be("RegisterClass_UnregisterClassName");
info.ClassAtom.Should().Be(Atom.Null);
info.Style.Should().Be(ClassStyle.HorizontalRedraw);
}
finally
{
WindowMethods.UnregisterClass("RegisterClass_UnregisterClassName", null);
Action action =
() => WindowMethods.GetClassInfo(ModuleMethods.GetModuleHandle(null), "RegisterClass_UnregisterClassName");
action.ShouldThrow <IOException>().And
.HResult.Should().Be((int)ErrorMacros.HRESULT_FROM_WIN32(WindowsError.ERROR_CLASS_DOES_NOT_EXIST));
}
}
public void GetClassInfo_Global()
{
var info = WindowMethods.GetClassInfo(null, "Button");
info.Background.IsInvalid.Should().BeFalse();
info.Style.Should().Be(ClassStyle.VerticalRedraw | ClassStyle.HorizontalRedraw | ClassStyle.DoubleClicks | ClassStyle.ParentDeviceContext);
info.WindowExtraBytes.Should().Be(8);
}
public void RegisterClass_GetSetClassLong()
{
// Some docs claim that 40 is the max, but that isn't true (at least in recent OSes)
// https://msdn.microsoft.com/en-us/library/windows/desktop/ms633574.aspx
WindowClass myClass = new WindowClass
{
ClassName = "RegisterClass_GetSetClassLong",
Style = ClassStyle.HorizontalRedraw,
WindowProcedure = CallDefaultProcedure,
ClassExtraBytes = 80
};
Atom atom = WindowMethods.RegisterClass(ref myClass);
atom.IsValid.Should().BeTrue();
try
{
WindowHandle window = WindowMethods.CreateWindow(atom,
"RegisterClass_GetSetClassLong_Window", WindowStyles.Diabled | WindowStyles.Minimize);
window.IsValid.Should().BeTrue();
try
{
var info = WindowMethods.GetClassInfo(ModuleMethods.GetModuleHandle(null), atom);
info.ClassExtraBytes.Should().Be(80);
IntPtr result = WindowMethods.SetClassLong(window, (ClassLong)72, (IntPtr)0x0000BEEF);
result.Should().Be(IntPtr.Zero);
WindowMethods.GetClassLong(window, (ClassLong)72).Should().Be((IntPtr)0x0000BEEF);
}
finally
{
WindowMethods.DestroyWindow(window);
}
}
finally
{
WindowMethods.UnregisterClass(atom, null);
}
}
public void GetClassInfo_GlobalAtom()
{
var info = WindowMethods.GetClassInfo(null, new Atom(32768));
}
