VS2013 MFC Windows 程序设计之Accel

最新推荐文章于 2022-02-15 09:15:11 发布

EXPENF

最新推荐文章于 2022-02-15 09:15:11 发布

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本文链接：https://blog.youkuaiyun.com/EXPENF/article/details/42707929

本文介绍了如何在VS2013的MFC环境中设计Windows程序，重点讲解了Accel加速键的使用。通过新建Accel项目，修改属性，添加InitInstance函数，并在构造函数中初始化数据。接着，在类视图中为CMyFrameWnd添加变量，处理滚动条的不同通知码，从而实现加速键的功能。最后展示了程序运行的效果。

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1.新建一个项目Accel，修改属性。创建头文件Accel.h和源文件Accel.cpp。

#include <afxwin.h>
#include "Accel.h"

class CMyWinApp : public CWinApp
{

};

class CMyFrameWnd : public CFrameWnd
{

};

添加InitInstance函数:

	this->m_pMainWnd = new CMyFrameWnd;
	this->m_pMainWnd->ShowWindow(this->m_nCmdShow);
	this->m_pMainWnd->UpdateWindow();

	return TRUE;

构造函数的声明:

class CMyFrameWnd : public CFrameWnd
{
public:
	CMyFrameWnd();

};

构造函数的定义，写都源文件里

CMyWinApp app;

CMyFrameWnd::CMyFrameWnd()
{
	this->Create(NULL, TEXT("Accel"), WS_OVERLAPPEDWINDOW);

}

4.单元格的高度、宽度和视图:

在类视图中，双击CMyFrameWnd，右击--添加--添加变量。

protected:
	int m_nCellWidth;
	int m_nCellHeight;
	int m_nRibbonWidth;
	int m_nViewWidth;//最大的显示。
	int m_nViewHeight;

6.我们要初始化上面的数据，初始化数据在创建窗口的时候。

	CClientDC dc(this);
	m_nCellWidth = dc.GetDeviceCaps(LOGPIXELSX);//运用dc的方法。
	m_nCellHeight = dc.GetDeviceCaps(LOGPIXELSX) / 4;
	m_nRibbonWidth = m_nCellWidth / 2;
	m_nViewWidth = (26 * m_nCellWidth) + m_nRibbonWidth;
	m_nViewHeight = m_nCellHeight * 100;

7.添加OnPaint:

‘

	CPen pen(PS_SOLID, 0, RGB(192, 192, 192));//宽度是0。
	CPen *pOldPen = dc.SelectObject(&pen);

	for (int i = 0; i < 99; i++){
		int y = (i * m_nCellHeight) + m_nCellHeight;
		dc.MoveTo(0, y);
		dc.LineTo(m_nViewWidth, y);
	}
	//上面是横线，我们在画上竖线。

	for (int j = 0; j < 26; j++){
		int x = (j*m_nCellWidth) + m_nRibbonWidth;
		dc.MoveTo(x, 0);
		dc.LineTo(x, m_nViewHeight);
	}

	dc.SelectObject(&pOldPen);

	//接下来，画行头。
	CBrush brush;
	brush.CreateStockObject(LTGRAY_BRUSH);

	CRect rcTop(0, 0, m_nViewWidth, m_nCellHeight);
	dc.FillRect(rcTop, &brush);
	CRect rcLeft(0, 0, m_nRibbonWidth, m_nViewHeight);
	dc.FillRect(rcLeft, &brush);

	dc.MoveTo(0, m_nCellHeight);
	dc.LineTo(m_nViewWidth, m_nCellHeight);

	dc.MoveTo(m_nRibbonWidth, 0);
	dc.LineTo(m_nRibbonWidth, m_nViewHeight);

	dc.SetBkMode(TRANSPARENT);

	for (int i = 0; i < 99; i++)
	{
		int y = (i * m_nCellHeight) + m_nCellHeight;
			dc.MoveTo(0, y);
		dc.LineTo(m_nRibbonWidth, y);

		CString string;
		string.Format(TEXT("%d"), i + 1);

		CRect rect(0, y, m_nRibbonWidth, y + m_nCellHeight);
		dc.DrawText(string, &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);

		rect.top++;
		dc.Draw3dRect(rect, RGB(255, 255, 255), RGB(128, 128, 128));
	}

	for (int j = 0; j < 26; j++){
		int x = (j* m_nCellWidth) + m_nRibbonWidth;
		dc.MoveTo(x, 0);
		dc.LineTo(x, m_nCellHeight);

		CString string;
		string.Format(TEXT("%c"), j + 'A');

		CRect rect(x, 0, x + m_nCellWidth, m_nCellHeight);
		dc.DrawText(string, &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);

		rect.left++;
		dc.Draw3dRect(rect, RGB(255, 255, 255), RGB(128, 128, 128));
	}	CPen pen(PS_SOLID, 0, RGB(192, 192, 192));//宽度是0。
	CPen *pOldPen = dc.SelectObject(&pen);

	for (int i = 0; i < 99; i++){
		int y = (i * m_nCellHeight) + m_nCellHeight;
		dc.MoveTo(0, y);
		dc.LineTo(m_nViewWidth, y);
	}
	//上面是横线，我们在画上竖线。

	for (int j = 0; j < 26; j++){
		int x = (j*m_nCellWidth) + m_nRibbonWidth;
		dc.MoveTo(x, 0);
		dc.LineTo(x, m_nViewHeight);
	}

	dc.SelectObject(&pOldPen);

	//接下来，画行头。
	CBrush brush;
	brush.CreateStockObject(LTGRAY_BRUSH);

	CRect rcTop(0, 0, m_nViewWidth, m_nCellHeight);
	dc.FillRect(rcTop, &brush);
	CRect rcLeft(0, 0, m_nRibbonWidth, m_nViewHeight);
	dc.FillRect(rcLeft, &brush);

	dc.MoveTo(0, m_nCellHeight);
	dc.LineTo(m_nViewWidth, m_nCellHeight);

	dc.MoveTo(m_nRibbonWidth, 0);
	dc.LineTo(m_nRibbonWidth, m_nViewHeight);

	dc.SetBkMode(TRANSPARENT);

	for (int i = 0; i < 99; i++)
	{
		int y = (i * m_nCellHeight) + m_nCellHeight;
			dc.MoveTo(0, y);
		dc.LineTo(m_nRibbonWidth, y);

		CString string;
		string.Format(TEXT("%d"), i + 1);

		CRect rect(0, y, m_nRibbonWidth, y + m_nCellHeight);
		dc.DrawText(string, &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);

		rect.top++;
		dc.Draw3dRect(rect, RGB(255, 255, 255), RGB(128, 128, 128));
	}

	for (int j = 0; j < 26; j++){
		int x = (j* m_nCellWidth) + m_nRibbonWidth;
		dc.MoveTo(x, 0);
		dc.LineTo(x, m_nCellHeight);

		CString string;
		string.Format(TEXT("%c"), j + 'A');

		CRect rect(x, 0, x + m_nCellWidth, m_nCellHeight);
		dc.DrawText(string, &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);

		rect.left++;
		dc.Draw3dRect(rect, RGB(255, 255, 255), RGB(128, 128, 128));
	}

8.下面是创建滚动条:

滚动条有不同的通知码，下面是编写各种通知码:

	int m_nHScrollPos;//保存水平滚动条的位置。
	int m_nVScrollPos;//保存垂直滚动条的位置。

	//在创建窗口的时候，指定滚动条的位置。
	m_nHScrollPos = m_nVScrollPos = 0;

	int nDelta;


	switch (nSBCode)
	{
	case SB_LINEDOWN:
		nDelta = m_nCellHeight;
		break;
	}

	m_nVScrollPos += nDelta;

	SetScrollPos(SB_VERT, m_nVScrollPos, TRUE);

#define LINESIZE 8

	int nDelta;


	switch (nSBCode)
	{
	case SB_LINEUP:
			nDelta = -LINESIZE;
			break;
	case SB_LINEDOWN:
		nDelta = LINESIZE;
		break;

	int m_nHPageSize;
	int m_nVPageSize;

	int nHScrollMax = 0;//水平可以滚动的最大距离。
	m_nHPageSize = 0;

	if (cx < m_nViewWidth)
	{
		m_nHPageSize = cx;
		nHScrollMax = m_nViewWidth - 1;

	}

	SCROLLINFO si;
	si.fMask = SIF_PAGE | SIF_RANGE | SIF_POS;
	si.nMin = 0;
	si.nMax = nHScrollMax;
	si.nPos = m_nHScrollPos;
	si.nPage = m_nHPageSize;

	SetScrollInfo(SB_HORZ, &si, TRUE);

	int nVScrollMax = 0;
	m_nVPageSize = 0;

	if (cy < m_nViewHeight)
	{
		nVScrollMax = m_nViewHeight - 1;
		m_nVPageSize = cy;

	}

	si.fMask = SIF_PAGE | SIF_RANGE | SIF_POS;
	si.nMin = 0;
	si.nMax = nVScrollMax;
	si.nPos = m_nVScrollPos;
	si.nPage = m_nVPageSize;

	SetScrollInfo(SB_VERT,&si, TRUE);

效果图:

<span style="white-space:pre">	</span>case SB_THUMBTRACK:
<span style="white-space:pre">		</span>nDelta = (int)nPos - m_nVScrollPos;
<span style="white-space:pre">		</span>break;
    case SB_PAGEUP:
<span style="white-space:pre">		</span>nDelta = -m_nVPageSize;
<span style="white-space:pre">	</span>    break;
    case SB_PAGEDOWN:
<span style="white-space:pre">		</span>nDelta = m_nVPageSize;
<span style="white-space:pre">	</span>    break;
<span style="white-space:pre">	</span>default:
<span style="white-space:pre">		</span>return;

下面写水平滚动条:

	int nDelta;
	switch (nSBCode)
	{
	case SB_LINELEFT:
		nDelta = -LINESIZE;
		break;
	case SB_LINERIGHT:
		nDelta = LINESIZE;
		break;
	case SB_PAGELEFT:
		nDelta = -m_nHPageSize;
		break;
	case SB_PAGERIGHT:
		nDelta = m_nHPageSize;
		break;
	case SB_THUMBTRACK:
		nDelta = (int)nPos - m_nHScrollPos;
		break;
	default:
		break;
	}
	if (nDelta != 0){
		m_nHScrollPos += nDelta;
		SetScrollPos(SB_HORZ, m_nHScrollPos, TRUE);
	}

ScrollWindow(0, -nDelta);

	<span style="white-space:pre">	</span>dc.SetWindowOrg(m_nHScrollPos, m_nVScrollPos);//图上是错误的。