refactor(headers): modernize ColorCop headers and remove obsolete MFC artifacts

- Drop legacy AFX include guards in ColorCop.h (use #pragma once exclusively)
- Remove redundant CColorCopApp:: qualifiers inside class scope
- Normalize constructor nullptr usage and modernize byte fields to std::uint8_t
- Zero‑initialize several member variables for deterministic startup state
- Clean up stray blank lines and normalize method signatures

No functional changes; header‑only cleanup for clarity and maintainability.

Author: j4y

ColorCop.h

@@ -4,9 +4,6 @@
 // ColorCop.h : main header file for the Color Cop application
 //
 
-#if !defined(AFX_HTMLCOP_H__EC2A34E4_4FAA_11D3_81A0_A79013DBA62A__INCLUDED_)
-#define AFX_HTMLCOP_H__EC2A34E4_4FAA_11D3_81A0_A79013DBA62A__INCLUDED_
-
 #pragma once
 
 #ifndef __AFXWIN_H__
@@ -21,23 +18,21 @@
 // CColorCopApp:
 // See ColorCop.cpp for the implementation of this class
 //
-
 class CColorCopApp : public CWinApp {
  public:
     CColorCopDlg dlg;
     CColorCopApp();
     ~CColorCopApp();
 
-
  protected:
-    void CColorCopApp::CloseApplication();
-    void CColorCopApp::LoadDefaultSettings();
-    CString CColorCopApp::GetTempFolder();
-    BOOL CColorCopApp::GetShellFolderPath(char * pShellFolder, char * pShellPath);
-    void CColorCopApp::ClipOrCenterWindowToMonitor(HWND hwnd, UINT flags);
+    void CloseApplication();
+    void LoadDefaultSettings();
+    CString GetTempFolder();
+    BOOL GetShellFolderPath(char * pShellFolder, char * pShellPath);
+    void ClipOrCenterWindowToMonitor(HWND hwnd, UINT flags);
 
     // multi mon
-    void CColorCopApp::ClipOrCenterRectToMonitor(LPRECT prc, UINT flags);
+    void ClipOrCenterRectToMonitor(LPRECT prc, UINT flags);
 
     bool InstanceRunning();
     HANDLE m_hMutex;
@@ -65,5 +60,3 @@ class CColorCopApp : public CWinApp {
 
 //{{AFX_INSERT_LOCATION}} // NOLINT(whitespace/comments)
 // Microsoft Developer Studio will insert additional declarations immediately before the previous line.
-
-#endif // !defined(AFX_HTMLCOP_H__EC2A34E4_4FAA_11D3_81A0_A79013DBA62A__INCLUDED_) // NOLINT(whitespace/comments)

ColorCopDlg.h

@@ -17,7 +17,7 @@ class CSystemTray;
 class CColorCopDlg : public CDialog {
 // Construction
  public:
-    explicit CColorCopDlg(CWnd* pParent = NULL);    // standard constructor
+    explicit CColorCopDlg(CWnd* pParent = nullptr);    // standard constructor
     COLORREF ColorHistory[7];
     COLORREF CustColorBank[16];
     int m_Appflags;
@@ -82,8 +82,11 @@ class CColorCopDlg : public CDialog {
 
     HACCEL m_hAcceleratorTable;            // Accelerator var
 
-    // Store for snapback from websafe,  unsigned char only takes 1 byte, 0 - 255
-    unsigned char m_OldRed, m_OldBlue, m_OldGreen;
+    // Store for snapback from websafe; 1‑byte values (0–255)
+    std::uint8_t m_OldRed{};
+    std::uint8_t m_OldGreen{};
+    std::uint8_t m_OldBlue{};
+
     BOOL bOldClrExist;
 
     BOOL m_isEyedropping;
@@ -114,10 +117,10 @@ class CColorCopDlg : public CDialog {
     swatchStruct OrigSwatch;
 
     COLORREF ColorPal[6][7];
-    int palcol;
+    int palcol{};
 
-    POINT RelativePoint;
-    POINT RelativePointEnd;
+    POINT RelativePoint{};
+    POINT RelativePointEnd{};
 
     CMenu copmenu;
     HDC hdc, hdcMem, hdcZoomMem;
@@ -130,8 +133,6 @@ class CColorCopDlg : public CDialog {
     CRect magplus, magminus;
     RECT CCopRect, CCopsmRect;
 
-
-
     HCURSOR m_hEyeCursor;
     HCURSOR m_hMagCursor;
     HCURSOR m_hStandardCursor;
@@ -148,7 +149,7 @@ class CColorCopDlg : public CDialog {
     void CColorCopDlg::FloatPrecisionDown();
     void CColorCopDlg::GetScreenBitmap(CPoint point);
 
-    void CColorCopDlg::StopCapture(void);
+    void CColorCopDlg::StopCapture();
     void CColorCopDlg::DisplayColor();
     void CColorCopDlg::ParseHTML(CString inst);
     void CColorCopDlg::ParseDelphi(CString inst);