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///////////////////// BaseCntrl.cpp ////////////#include "BaseCntrl.h"//-------------------------------------------------------------------------------------------//DEFINITIONS OF BaseCntrl//-------------------------------------------------------------------------------------------BaseCntrl::BaseCntrl(){	//set default wnd style	nStyle = WS_CHILD | WS_VISIBLE;	//nullify control handle	hCntrl = NULL;	Width = 100;	Height = 30;	Top = 0;	Left = 0;}BaseCntrl::~BaseCntrl(){	//release font resources back to system if necessary	if (hFont)    {		DeleteObject(hFont);    }	//if the handle is still valid then destroy the control	if (hCntrl)	{		DestroyWindow(hCntrl);	}}void BaseCntrl::ModifyStyle(long lAddStyles, long lRemoveStyles){	if (hCntrl)	{		long lStyle = GetWindowLong(hCntrl, GWL_STYLE);		lStyle |= lAddStyles;		lStyle &= ~lRemoveStyles;		SetWindowLong(hCntrl, GWL_STYLE, lStyle);	}}HWND BaseCntrl::Create(HWND hParent){	//get the application instance from the parent	if (!hInst)	{		hInst = reinterpret_cast<HINSTANCE>(GetWindowLong(hParent, GWL_HINSTANCE));	}	//create the control by calling the base class function	hCntrl = BaseWnd::Create(hParent);	return hCntrl;}void BaseCntrl::SetText(const char* chText){	SetWndCaption(chText);	if (hCntrl)	{		SetWindowText(hCntrl, chText);	}}void BaseCntrl::SetText(int iText){	char chNum[10];	_itoa(iText, chNum, 10);	SetWndCaption(chNum);	if (hCntrl)	{		SetWindowText(hCntrl, chNum);	}}void BaseCntrl::SetFont(const char* chFont){	if (hCntrl)	{		hFont = CreateFont(18, 8, 0, 0, 100, 0, 0, 0, 0, 0, 0, 0, 0, chFont);		SendMessage(hCntrl, WM_SETFONT, (WPARAM)hFont, MAKELPARAM(0, 0));	}}void BaseCntrl::SetTxtColor(COLORREF crColor){	//SetTextColor(hdcEdit, crColor);	//SetBkColor(hdcEdit, GetSysColor(COLOR_WINDOW));}std::string* BaseCntrl::GetText(){	char chLfCr[] = "\r\n";	char* chTxt = NULL;	int nLen = static_cast<int>(SendMessage(hCntrl, WM_GETTEXTLENGTH, 0, 0)); //length of text string	chTxt = new char[nLen + lstrlen(chLfCr) + 1]; //allocate memory for string	//get edit control contents	GetWindowText(hCntrl, chTxt, nLen + 1);	return new std::string(chTxt);}void BaseCntrl::EnableWindow(bool bEnable){	::EnableWindow(hCntrl, bEnable);}///////////////////// BaseCntrl.h ////////////#ifndef BaseCntrlH#define BaseCntrlH#include "BaseWnd.h"#include <string>//-------------------------------------------------------------------------------------------//DECLARATION OF BaseCntrl. Class Hierarchy: BaseWnd<-BaseCntrl//-------------------------------------------------------------------------------------------class BaseCntrl : public BaseWnd{private:	HFONT hFont;protected:	BaseCntrl();           //It's declared in the protected section because no one should	virtual ~BaseCntrl(); //create a BaseControl, just subclasses of it	void ModifyStyle(long lAddStyles, long lRemoveStyles);public:	virtual HWND Create(HWND hParent = NULL);	//wnd creation, parent handle param defaults to NULL	void SetText(const char* chText);	void SetText(int iText);	void SetFont(const char* chFont);	void SetTxtColor(COLORREF crColor);	std::string* GetText();	void EnableWindow(bool bEnable); //Enables or disables the window	//variables	HWND	hCntrl;		//handle of the control};#endif