Why where imports broken?

W32.Test/MainForm.cs

@@ -1,4 +1,8 @@
-using CC_Functions.W32.DCDrawer;
+using System;
+using System.Drawing;
+using System.Linq;
+using System.Windows.Forms;
+using CC_Functions.W32.DCDrawer;
 using CC_Functions.W32.Forms;
 using CC_Functions.W32.Hooks;
 using static CC_Functions.W32.Power;
@@ -22,7 +26,7 @@ namespace CC_Functions.W32.Test
             _mainF = this;
             _tmpWnd32Obj = Wnd32.FromForm(this);
 #if DEBUG
-            tmpWnd32_obj.MakeOverlay();
+            _tmpWnd32Obj.Overlay = true;
 #endif
             set_up_box(power_mode_box, typeof(ShutdownMode));
             set_up_box(power_reason_box, typeof(ShutdownReason));

W32.Test/Program.cs

@@ -1,4 +1,7 @@
-namespace CC_Functions.W32.Test
+using System;
+using System.Windows.Forms;
+
+namespace CC_Functions.W32.Test
 {
     internal static class Program
     {

W32/DCDrawer/DCBuffered.cs

@@ -1,4 +1,8 @@
-namespace CC_Functions.W32.DCDrawer
+using System;
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace CC_Functions.W32.DCDrawer
 {
     public class DCBuffered : IDCDrawer
     {

W32/DCDrawer/DCUnbuffered.cs

@@ -1,4 +1,6 @@
-using CC_Functions.W32.Native;
+using System;
+using System.Drawing;
+using CC_Functions.W32.Native;
 
 namespace CC_Functions.W32.DCDrawer
 {

W32/DCDrawer/IDCDrawer.cs

@@ -1,4 +1,7 @@
-namespace CC_Functions.W32.DCDrawer
+using System;
+using System.Drawing;
+
+namespace CC_Functions.W32.DCDrawer
 {
     public interface IDCDrawer : IDisposable
     {

W32/DeskMan.cs

@@ -1,5 +1,10 @@
-using CC_Functions.W32.DCDrawer;
+using System;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.IO;
+using CC_Functions.W32.DCDrawer;
 using CC_Functions.W32.Native;
+using Microsoft.Win32;
 
 namespace CC_Functions.W32
 {

W32/Forms/DataGridViewNumericUpDownCell.cs

@@ -1,3 +1,11 @@
+using System;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Drawing;
+using System.Globalization;
+using System.Runtime.InteropServices;
+using System.Windows.Forms;
+
 namespace CC_Functions.W32.Forms
 {
     public class DataGridViewNumericUpDownCell : DataGridViewTextBoxCell

W32/Forms/DataGridViewNumericUpDownColumn.cs

@@ -1,3 +1,9 @@
+using System;
+using System.ComponentModel;
+using System.Globalization;
+using System.Text;
+using System.Windows.Forms;
+
 namespace CC_Functions.W32.Forms
 {
     /// <summary>

W32/Forms/DataGridViewNumericUpDownEditingControl.cs

@@ -1,3 +1,9 @@
+using System;
+using System.Drawing;
+using System.Globalization;
+using System.Runtime.InteropServices;
+using System.Windows.Forms;
+
 namespace CC_Functions.W32.Forms
 {
     /// <summary>

W32/Forms/Extensions.cs

@@ -1,4 +1,9 @@
-namespace CC_Functions.W32.Forms
+using System;
+using System.Linq.Expressions;
+using System.Reflection;
+using System.Windows.Forms;
+
+namespace CC_Functions.W32.Forms
 {
     public delegate void SetPropertyDelegate<TCtl, TProp>(TCtl control, Expression<Func<TCtl, TProp>> propexpr,
         TProp value) where TCtl : Control;

W32/Forms/RotatingIndicator.cs

@@ -1,4 +1,9 @@
-using Timer = System.Timers.Timer;
+using System;
+using System.ComponentModel;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Windows.Forms;
+using Timer = System.Timers.Timer;
 
 namespace CC_Functions.W32.Forms
 {

W32/Forms/SelectBox.cs

@@ -1,4 +1,8 @@
-namespace CC_Functions.W32.Forms
+using System;
+using System.Linq;
+using System.Windows.Forms;
+
+namespace CC_Functions.W32.Forms
 {
     internal partial class SelectBox<T> : Form
     {

W32/GenericExtensions.cs

@@ -1,4 +1,8 @@
-namespace CC_Functions.W32
+using System;
+using System.Diagnostics;
+using System.Windows.Forms;
+
+namespace CC_Functions.W32
 {
     public static class GenericExtensions
     {

W32/Hooks/KeyboardHook.cs

@@ -1,4 +1,9 @@
-using CC_Functions.W32.Native;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+using System.Windows.Forms;
+using CC_Functions.W32.Native;
 
 namespace CC_Functions.W32.Hooks
 {

W32/Hooks/KeyboardHookEventArgs.cs

@@ -1,4 +1,7 @@
-namespace CC_Functions.W32.Hooks
+using System;
+using System.Windows.Forms;
+
+namespace CC_Functions.W32.Hooks
 {
     public sealed class KeyboardHookEventArgs : EventArgs
     {

W32/Hooks/MouseHook.cs

@@ -1,4 +1,9 @@
-using CC_Functions.W32.Native;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Drawing;
+using System.Runtime.InteropServices;
+using CC_Functions.W32.Native;
 
 namespace CC_Functions.W32.Hooks
 {

W32/Hooks/MouseHookEventArgs.cs

@@ -1,4 +1,7 @@
-namespace CC_Functions.W32.Hooks
+using System;
+using System.Drawing;
+
+namespace CC_Functions.W32.Hooks
 {
     public class MouseHookEventArgs : EventArgs
     {

W32/KeyboardReader.cs

@@ -1,4 +1,5 @@
-using CC_Functions.W32.Native;
+using System.Windows.Forms;
+using CC_Functions.W32.Native;
 
 namespace CC_Functions.W32
 {

W32/Mouse.cs

@@ -1,4 +1,6 @@
-using CC_Functions.W32.Native;
+using System.Drawing;
+using System.Windows.Forms;
+using CC_Functions.W32.Native;
 
 namespace CC_Functions.W32
 {

W32/Native/RECT.cs

@@ -1,4 +1,6 @@
-namespace CC_Functions.W32.Native
+using System.Runtime.InteropServices;
+
+namespace CC_Functions.W32.Native
 {
     [StructLayout(LayoutKind.Sequential)]
     public struct RECT

W32/Native/advapi32.cs

@@ -1,4 +1,7 @@
-namespace CC_Functions.W32.Native
+using System;
+using System.Runtime.InteropServices;
+
+namespace CC_Functions.W32.Native
 {
     internal static class advapi32
     {

W32/Native/gdi32.cs

@@ -1,4 +1,7 @@
-namespace CC_Functions.W32.Native
+using System;
+using System.Runtime.InteropServices;
+
+namespace CC_Functions.W32.Native
 {
     internal static class gdi32
     {

W32/Native/kernel32.cs

@@ -1,4 +1,7 @@
-namespace CC_Functions.W32.Native
+using System;
+using System.Runtime.InteropServices;
+
+namespace CC_Functions.W32.Native
 {
     internal static class kernel32
     {

W32/Native/ntdll.cs

@@ -1,4 +1,7 @@
-namespace CC_Functions.W32.Native
+using System;
+using System.Runtime.InteropServices;
+
+namespace CC_Functions.W32.Native
 {
     internal static class ntdll
     {

W32/Native/shell32.cs

@@ -1,4 +1,7 @@
-namespace CC_Functions.W32.Native
+using System;
+using System.Runtime.InteropServices;
+
+namespace CC_Functions.W32.Native
 {
     internal static class shell32
     {

W32/Native/user32.cs

@@ -1,4 +1,8 @@
-namespace CC_Functions.W32.Native
+using System;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace CC_Functions.W32.Native
 {
     internal static class user32
     {

W32/Power.cs

@@ -1,4 +1,5 @@
-using CC_Functions.W32.Native;
+using System;
+using CC_Functions.W32.Native;
 using static CC_Functions.W32.Privileges;
 
 namespace CC_Functions.W32

W32/Privileges.cs

@@ -1,4 +1,8 @@
-using CC_Functions.W32.Native;
+using System;
+using System.ComponentModel;
+using System.Globalization;
+using System.Runtime.InteropServices;
+using CC_Functions.W32.Native;
 
 namespace CC_Functions.W32
 {

W32/ScreenMan.cs

@@ -1,4 +1,7 @@
-using CC_Functions.W32.DCDrawer;
+using System;
+using System.Drawing;
+using System.Windows.Forms;
+using CC_Functions.W32.DCDrawer;
 using CC_Functions.W32.Native;
 
 namespace CC_Functions.W32

W32/Security.cs

@@ -1,4 +1,6 @@
-namespace CC_Functions.W32
+using System.Security.Principal;
+
+namespace CC_Functions.W32
 {
     public static class MiscFunctions
     {

W32/Time.cs

@@ -1,4 +1,5 @@
-using CC_Functions.W32.Native;
+using System;
+using CC_Functions.W32.Native;
 
 namespace CC_Functions.W32
 {

W32/Wnd32.cs

@@ -1,4 +1,13 @@
-using CC_Functions.W32.Native;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Drawing;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Windows.Forms;
+using CC_Functions.W32.Native;
 
 namespace CC_Functions.W32
 {