MFC 基础知识

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1、刷新桌面
//第一个可以
SendMessage(GetDesktopWindow(),WM_SYSCOLORCHANGE,0,0);
//第二个没有试验
SendMessage(HWND_BROADCAST, WM_SETTINGCHANGE, 0, 0);

2、遍历控件
CWnd* pWnd = GetWindow(GW_CHILD);
    char cClassName[255]={0};
    while(pWnd)
     {
        GetClassName(pWnd->GetSafeHwnd(),cClassName,255);//得到控件的类名，主要有Edit，Button，Static等等

//CDataTimeCtrl 是"SysDateTimePick32"
        if(strcmp(cClassName,"Button") == 0) //是Button控件
        {
            CButton *pBtn = (CButton*) pWnd;
   pBtn->SetWindowText(_T("hah"));//(BUTTON_BKCOLOR); //按钮背景色
        }
        pWnd = pWnd->GetWindow(GW_HWNDNEXT);
     }

3. CStatusBar

CStatusBar m_wndStatusBar;

m_wndStatusBar.Create(this/*, WS_CHILD|WS_VISIBLE|CBRS_BOTTOM*/);
m_wndStatusBar.SetIndicators(indicators,sizeof(indicators)/sizeof(UINT));
this->m_wndStatusBar.SetPaneInfo(0,ID_INDICATOR_MSG, SBPS_STRETCH,0);
this->m_wndStatusBar.SetPaneInfo(1,ID_INDICATOR_TIME, SBPS_NORMAL,400);

RepositionBars(AFX_IDW_CONTROLBAR_FIRST,AFX_IDW_CONTROLBAR_LAST,ID_INDICATOR_MSG);
RepositionBars(AFX_IDW_CONTROLBAR_FIRST,AFX_IDW_CONTROLBAR_LAST,ID_INDICATOR_TIME);

4软件图标等

CSystemTray m_TrayIcon;

CString strToolTip;
this->GetWindowText(strToolTip);
m_TrayIcon.Create(this, WM_ICON_NOTIFY, strToolTip,
m_hIcon, IDR_TRAY_MENU);
//m_TrayIcon.MinimiseToTray(this);
m_TrayIcon.SetMenuDefaultItem(ID_TRAYMENU_OPEN, FALSE);

//修改小图标和大图标
m_hIcon =AfxGetApp()->LoadIcon(IDR_WMROK);
SetIcon(m_hIcon,TRUE);
SetIcon(m_hIcon,FALSE);
m_TrayIcon.SetIcon(m_hIcon);

5. 将CList开始处添加上Check Box控件 ListView_SetExtendedListViewStyle(m_VehicleListCtrl.m_hWnd, LVS_EX_FULLROWSELECT|LVS_EX_CHECKBOXES);

6.按F1-F12的过程：

BOOL CDialog::PreTranslateMessage(MSG* pMsg)

{

if (pMsg->message == WM_KEYDOWN)

{

switch (pMsg->wParam) {
   case VK_F1 :
    OnBnClickedButtonOneShotAndQuery();
    return TRUE;

case ......

default:

break;

}

return CDialog::PreTranslateMessage(pMsg);

]

6 在控件继承类中编辑输入文字的颜色：下面有些定义有问题，请自行更正，大概意思如此

在pDC->DrawText(*,*);中修改为如下：

COLOREFE col=pDC->SetTextColor(RGB(255,255,255));

pDC->SetBkMode(TRANSPARENT);

pDC->DrawText(*,*);

pDC->SelectObject(col);