分类: C/C++
2008-08-04 09:29:30
visible = false;(1.2)重载 WM_WINDOWPOSCHANGING,并添加下面代码:
void CTest_deleteDlg::OnWindowPosChanging(WINDOWPOS FAR* lpwndpos) { if(!visible) lpwndpos->flags &= ~SWP_SHOWWINDOW; CDialog::OnWindowPosChanging(lpwndpos); }(1.3)然后设布尔visible变量值为true,并在要显示窗口时,再用ShowWindow(SW_SHOW)既可。
visible = true; ShowWindow(SW_SHOW);2. 对话框的全屏显示
BOOL CFullScrDlgDlg::OnInitDialog() { CDialog::OnInitDialog(); //... int cx, cy; HDC dc = ::GetDC(NULL); cx = GetDeviceCaps(dc,HORZRES) GetSystemMetrics(SM_CXBORDER); cy = GetDeviceCaps(dc,VERTRES) GetSystemMetrics(SM_CYBORDER); ::ReleaseDC(0,dc); //去除标题和边框 SetWindowLong(m_hWnd, GWL_STYLE, GetWindowLong(m_hWnd, GWL_STYLE) & (~(WS_CAPTION | WS_BORDER))); // 置对话框为最顶端并扩充到整个屏幕 ::SetWindowPos(m_hWnd, HWND_TOPMOST, -(GetSystemMetrics(SM_CXBORDER) 1), -(GetSystemMetrics(SM_CYBORDER) 1), cx 1,cy 1, SWP_NOZORDER); //... return TRUE; }3. 如何在2K/xp下使窗口获取焦点
//捕捉并设置当前焦点窗口为我们的窗口 AttachThreadInput( GetWindowThreadProcessId( ::GetForegroundWindow(),NULL), GetCurrentThreadId(),TRUE); //置我们的为焦点窗口 SetForegroundWindow(); SetFocus(); //释放thread AttachThreadInput( GetWindowThreadProcessId( ::GetForegroundWindow(),NULL), GetCurrentThreadId(),FALSE);4. 使你的对话框位于最顶端
SetWindowPos(&this->wndTopMost,0,0,0,0,SWP_NOMOVE|SWP_NOSIZE);5. 如何动态放大/缩小对话框
void CTest_deleteDlg::OnMakeSmall() { SetWindowPos(NULL,0,0,200,200,SWP_NOZORDER|SWP_NOMOVE); } void CTest_deleteDlg::OnExpand() { SetWindowPos(NULL,0,0,500,300,SWP_NOZORDER|SWP_NOMOVE); }或:
//伸、缩在IDC_DYCREDITS和IDC_COPYRIGHT两STATIC控件间,做为分隔线 BOOL CAbout::OnInitDialog() { CDialog::OnInitDialog(); //"关于"对话框中对话框可收缩效果 CRect Rect1,Rect2; //对话框收缩时大小 GetDlgItem(IDC_DYCREDITS)->GetWindowRect(Rect1); GetDlgItem(IDC_COPYRIGHT)->GetWindowRect(Rect2); m_nReducedHeight = Rect1.Height() (Rect1.top -Rect2.bottom)/2; //收缩后窗体高度 dlgRect.bottom -= (Rect1.Height() (Rect1.top -Rect2.bottom)/2); MoveWindow(&dlgRect); //如果要显示对话框起始动态效果的话,不能使用该句 m_bVertical=false; //默认收缩对话框 } // --------------------------------------------------------- // 名称: OnMore // 功能: 是否允许显示 // 变量: 无 // 返回: 无 // 编写: 徐景周,2002.4.8 // --------------------------------------------------------- void CAbout::OnMore() { m_bVertical = !m_bVertical; if(m_bVertical == FALSE) //不显示 { SetDlgItemText(ID_MORE,_T("更多>>")); SizeWindow(m_nReducedHeight,true); // m_DyCredits.EndScrolling(); //停止滚动 } else //显示 { SetDlgItemText(ID_MORE,_T("<<隐藏")); SizeWindow(m_nReducedHeight,false); m_DyCredits.StartScrolling(); //开始滚动 } UpdateWindow(); } // --------------------------------------------------------- // 名称: SizeWindow // 功能: 伸展或收缩对话框 // 变量: ReduceHeight-收缩高度,bExtend-是否伸展 // 返回: 无 // 编写: 徐景周,2002.4.8 // --------------------------------------------------------- void CAbout::SizeWindow(int ReduceHeight, bool bExtend) { CRect rc; GetWindowRect(&rc); if(bExtend) { for (int i= 0; i < ReduceHeight; i ) { rc.bottom--; MoveWindow(&rc); } } else { for (int i= 0; i < ReduceHeight; i ) { rc.bottom ; MoveWindow(&rc); } } }6. 如何让对话框回到屏幕中来
SendMessage(DM_REPOSITION);注:它必须是顶端窗口且不是child窗口。
int CTest_deleteDlg::OnCreate(LPCREATESTRUCT lpCreateStruct) { if (CDialog::OnCreate(lpCreateStruct) == -1) return -1; // TODO: Add your specialized creation code here SetWindowLong(this->m_hWnd,GWL_STYLE, GetWindowLong(this->m_hWnd,GWL_STYLE) | WS_MINIMIZEBOX | WS_MAXIMIZEBOX); return 0; }或用:
ModifyStyle (NULL, WS_MAXIMIZEBOX);8. 改变鼠标指针
BOOL CTest_deleteDlg::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) { // TODO: Add your message handler code here and/or call default SetCursor(AfxGetApp()->LoadStandardCursor(IDC_UPARROW)); // Now we return instead of calling the base class return 0; // return CDialog::OnSetCursor(pWnd, nHitTest, message); }9. 改变对话框的前景和背景色
//红色背景、绿色前景 SetDialogBkColor(RGB(255,0,0),RGB(0,255,0));10. 在任务条上不显示图标
CFrameWnd *abc=new CFrameWnd(); abc->Create(0,0,WS_OVERLAPPEDWINDOW); CNoTaskBarIconDlg dlg(abc); m_pMainWnd = &dlg; int nResponse = dlg.DoModal(); if (nResponse == IDOK) { } else if (nResponse == IDCANCEL) { } delete abc;在 OnInitDialog中修改显示风格 WS_EX_APPWINDOW.
BOOL CNoTaskBarIconDlg::OnInitDialog() { CDialog::OnInitDialog(); ModifyStyleEx(WS_EX_APPWINDOW,0); 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 }11. 加入上、下文帮助
BOOL HelpDialog::OnInitDialog() { ModifyStyleEx(0, WS_EX_CONTEXTHELP); return CDialog::OnInitDialog(); }重载OnHelpInfo(...),用显示相关帮助信息
BOOL HelpDialog::OnHelpInfo(HELPINFO* pHelpInfo) { short state = GetKeyState (VK_F1); if (state < 0) // F1 key is down, get help for the dialog return CDialog::OnHelpInfo(pHelpInfo); else { // F1 key not down, get help for specific control if (pHelpInfo->dwContextId) WinHelp (pHelpInfo->dwContextId, HELP_CONTEXTPOPUP); return TRUE; } }译者联系方式: