ATL based spash screen
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Hi, Anybody have sample code about ATL based SPLASH dialog? Best Regards, Perumalla Koteswara Rao, JUNO Online Dev. Pvt. Ltd. Hyderabad, India
This code is off of the top of my head. I have done a few splash screens this way, I know there are other ways to accomplish this, but this has worked for me.
class CSplashDlg : public CDialogImpl { private: int m_CurTime; int m_DisplayTime; public: enum { IDD = IDD_ABOUTBOX, SPLASH_TIMER = 100 }; BEGIN_MSG_MAP(CAboutDlg) MESSAGE_HANDLER(WM_INITDIALOG, OnInitDialog) COMMAND_ID_HANDLER(IDOK, OnCloseCmd) COMMAND_ID_HANDLER(IDCANCEL, OnCloseCmd) MESSAGE_HANDLER(WM_TIMER, OnTimer) MESSAGE_HANDLER(WM_DESTROY, OnDestroy) END_MSG_MAP() LRESULT OnInitDialog(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/) { CenterWindow(GetParent()); m_CurTime = 0; m_DisplayTime = 6; // 6 half-second counts equals 3 seconds before the window disappears. //C: The timer is set for half second resolution. this->SetTimer(SPLASH_TIMER, 500, NULL); return TRUE; } LRESULT OnCloseCmd(WORD /*wNotifyCode*/, WORD wID, HWND /*hWndCtl*/, BOOL& /*bHandled*/) { EndDialog(wID); return 0; } LRESULT OnTimer(UINT /*uMsg*/, WPARAM wParam, LPARAM /*lParam*/, BOOL& /*bHandled*/) { if (SPLASH_TIMER == wParam) { ++m_CurTime; if (m_CurTime > m_DisplayTime) { this->DestroyWindow(); } } return TRUE; } LRESULT OnDestroy(UINT /*uMsg*/, WPARAM wParam, LPARAM /*lParam*/, BOOL& /*bHandled*/) { this->KillTimer(SPLASH_TIMER); return TRUE; } };Like I said this is off the top of my head, so you may need to fix any compiler errors that I have made. There is probably a better way to destroy the timer that I have created. Create this dialog with a modeless call with something like this:CSplashDlg dlgSplash; dlgSplash.ShowWindow(SW_NORMAL);With the way that it is currently written, it will disappear after 3 seconds. You can change the m_DisplayTime value in order to lengthen or shorten the time that the dialog is displayed. ONe more thing you may want to mess around with the window styles in order to make this dialog top most and whatever else.