关于热键使用的问题？
如何才能注册了一个热键（如Ctrl+z）,以后只要我的程序在运行，不管在干什么，只要一按热键， 就会弹出一个我的程序窗口 问题点数：40、回复次数：4Top
1 楼kingcaiyao（aking）回复于 2002-03-11 14:12:22 得分 40
use API function:
RegisterHotKey()
UnregisterHotKey()
please see SDK help
Top
2 楼kingcaiyao（aking）回复于 2002-03-11 14:14:00 得分 0
you may write RegisterHotKey() in WinMain Function,so you may use shortcut(ctrl+z) in your applicationTop
3 楼game_sage（游圣）回复于 2002-03-12 15:37:04 得分 0
这位大哥，可不可以写的详细一些呀？？Top
4 楼kingcaiyao（aking）回复于 2002-03-12 15:49:44 得分 0
我在VC下写过一段代码，C++ BUILDER是一样的，我给你作参考.
#include "stdafx.h"
#include "HotKey.h"
#include "HotKeyDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define VK_D 68
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CHotKeyDlg dialog
CHotKeyDlg::CHotKeyDlg(CWnd* pParent /*=NULL*/)
: CDialog(CHotKeyDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CHotKeyDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CHotKeyDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CHotKeyDlg)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CHotKeyDlg, CDialog)
//{{AFX_MSG_MAP(CHotKeyDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
ON_MESSAGE(WM_HOTKEY,OnHotKey)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CHotKeyDlg message handlers
BOOL CHotKeyDlg::OnInitDialog()
{
CDialog::OnInitDialog();
if(!RegisterHotKey(GetSafeHwnd(),m_HotKeyID,MOD_ALT,VK_D))
{
AfxMessageBox("Register hotkey fail!!!");
}
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// TODO: Add extra initialization here
return TRUE; // return TRUE unless you set the focus to a control
}
void CHotKeyDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if(nID==61458)
{
nID=0;
}
else
{
CDialog::OnSysCommand(nID,lParam);
}
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void CHotKeyDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CHotKeyDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CHotKeyDlg::OnButton1()
{
UnregisterHotKey(GetSafeHwnd(),m_HotKeyID);
EndDialog(IDOK);
// TODO: Add your control notification handler code here
}
//-----------------------------------------------------------------------------------
LONG CHotKeyDlg::OnHotKey(WPARAM wParam,LPARAM lParam)
{
UINT idHotKey=(UINT)wParam;
if(idHotKey==m_HotKeyID)
{
WinExec("c:\\pwin98\\calc.exe",SW_MAXIMIZE);
}
return 0;
}
Top
