MFC, Hiding a dialog based app on startup

Hiding a dialog based app on startup

Author	Message
Felipe Jord? #1 / 5	Hiding a dialog based app on startup This is a multi-part message in MIME format. ------=_NextPart_000_01BC65E4.EB9AA260 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Environment: Windows NT4sp3, Visual C++ 5.0 How can I start a Dialog based app hidden? I have tried calling ShowWindow(SW_HIDE) in OnInitDialog( ) and also setting a value for m_nCmdShow in the App's InitInstance( ) but they don't work. I am trying not to draw the window at all to eliminate showing it then hiding it (causing a flash on the screen). any ideas? Felipe -- My opinions are not those of Moody's Investors Service ------=_NextPart_000_01BC65E4.EB9AA260 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable <html><head></head><BODY bgcolor=3D"#FFFFFF"><p><font size=3D2 = color=3D"#000080" face=3D"Tahoma"><br>Environment: Windows NT4sp3, = Visual C++ 5.0<br><br>How can I start a Dialog based app hidden?  I = have tried calling ShowWindow(SW_HIDE) in OnInitDialog( ) and also = setting a value for m_nCmdShow in the App's InitInstance( ) but they = don't work.  I am trying not to draw the window at all to eliminate = showing it then hiding it (causing a flash on the screen).<br><br>any = ideas?<br>Felipe<br>-- <br>My opinions are not those of Moody's = Investors Service</p> </font></body></html> ------=_NextPart_000_01BC65E4.EB9AA260--
Sun, 07 Nov 1999 03:00:00 GMT

Cecil A. Galbrait #2 / 5	Hiding a dialog based app on startup Quote: > Environment: Windows NT4sp3, Visual C++ 5.0 > How can I start a Dialog based app hidden? I have tried calling > ShowWindow(SW_HIDE) in OnInitDialog( ) and also setting a value for > m_nCmdShow in the App's InitInstance( ) but they don't work. I am > trying not to draw the window at all to eliminate showing it then > hiding it (causing a flash on the screen). > any ideas? > Felipe > -- > My opinions are not those of Moody's Investors Service I wonder what would happen if you removed the WS_VISIBLE style from the dialog in OnInitDialog? Cecil -- Cecil Galbraith Free programmer's utilities and MFC tips at http://www.concentric.net/~cgalbrai
Sun, 07 Nov 1999 03:00:00 GMT

Felipe Jord? #3 / 5	Hiding a dialog based app on startup This is a multi-part message in MIME format. ------=_NextPart_000_01BC660C.93EA7C70 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit I tried using ModifyStyle( ) to remove the WS_VISIBLE style in OnInitDialog( ) but it returns 0 (meaning it didn't work). I also tried setting the showCmd of the WINDOWPLACEMENT structure to SW_HIDE before I apply it. Something is going on here or I'm just not tapping into the right place to change the 'window' attributes. Especially since I can't use PreCreateWindow( ) with a dialog based app. Felipe : > Environment: Windows NT4sp3, Visual C++ 5.0 : > : > How can I start a Dialog based app hidden? I have tried calling : > ShowWindow(SW_HIDE) in OnInitDialog( ) and also setting a value for : > m_nCmdShow in the App's InitInstance( ) but they don't work. I am : > trying not to draw the window at all to eliminate showing it then : > hiding it (causing a flash on the screen). : : I wonder what would happen if you removed the WS_VISIBLE style from the : dialog in OnInitDialog? ------=_NextPart_000_01BC660C.93EA7C70 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable <html><head></head><BODY bgcolor=3D"#FFFFFF"><p><font size=3D2 = color=3D"#000000" face=3D"Arial"><br>I tried using ModifyStyle( ) to = remove the WS_VISIBLE style in OnInitDialog( ) but it returns 0 (meaning = it didn't work).  I also tried setting the showCmd of the = WINDOWPLACEMENT structure to SW_HIDE before I apply it.  Something = is going on here or I'm just not tapping into the right place to change = the 'window' attributes.  Especially since I can't use = PreCreateWindow( ) with a dialog based app.<br><br>Felipe<br><br>Cecil = A. Galbraith <<font = color=3D"#000000">> wrote in article <<font = Environment: Windows NT4sp3, Visual C++ 5.0<br>: > <br>: > How can = I start a Dialog based app hidden?  I have tried calling<br>: > = ShowWindow(SW_HIDE) in OnInitDialog( ) and also setting a value for<br>: = > m_nCmdShow in the App's InitInstance( ) but they don't work. =  I am<br>: > trying not to draw the window at all to eliminate = showing it then<br>: > hiding it (causing a flash on the = screen).<br>: <br>: I wonder what would happen if you removed the = WS_VISIBLE style from the<br>: dialog in OnInitDialog?<br><br></p> </font></font></font></font></font></body></html> ------=_NextPart_000_01BC660C.93EA7C70--
Sun, 07 Nov 1999 03:00:00 GMT

Jeff Andrew #4 / 5	Hiding a dialog based app on startup --------------C3C6EA16405F99DD64E438BD Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Quote: > I tried using ModifyStyle( ) to remove the WS_VISIBLE style in > OnInitDialog( ) but it returns 0 (meaning it didn't work). I also > tried setting the showCmd of the WINDOWPLACEMENT structure to SW_HIDE > before I apply it. Something is going on here or I'm just not tapping > into the right place to change the 'window' attributes. Especially > since I can't use PreCreateWindow( ) with a dialog based app. > Felipe Quote: > : > Environment: Windows NT4sp3, Visual C++ 5.0 > : > > : > How can I start a Dialog based app hidden? I have tried calling > : > ShowWindow(SW_HIDE) in OnInitDialog( ) and also setting a value > for > : > m_nCmdShow in the App's InitInstance( ) but they don't work. I am > : > trying not to draw the window at all to eliminate showing it then > : > hiding it (causing a flash on the screen). > : > : I wonder what would happen if you removed the WS_VISIBLE style from > the > : dialog in OnInitDialog? Felipe, Do you want the dialog-based app to just perform some pre-selected actions and then terminate without ever having been displayed? If that is the case, you can just put an EndDialog call in your OnInitDialog method. Although it sounds questionable, it is perfectly legit. However, if that was not the case and you need a work-around for your visibility situation, you might try placing your dialog at some large negative coordinates such as -5000, -5000 (via SetWindowPos or MoveWindow) so that it would at least be off-screen. Of course, you might run into problems since it would probably show up as a running process in the task list, on the task bar, and in the alt-tab list, but I don't know if that is undesirable for your situation. (I am only suggesting this mechanism as a potential work-around until you get a handle on whatever is really going on). Regards, = Jeff = --------------C3C6EA16405F99DD64E438BD Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit <HTML> <BODY BGCOLOR="#FFFFFF"> <BLOCKQUOTE TYPE=CITE><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>I tried using ModifyStyle( ) to remove the WS_VISIBLE style in OnInitDialog( ) but it returns 0 (meaning it didn't work).  I also tried setting the showCmd of the WINDOWPLACEMENT structure to SW_HIDE before I apply it.  Something is going on here or I'm just not tapping into the right place to change the 'window' attributes.  Especially since I can't use PreCreateWindow( ) with a dialog based app.</FONT></FONT></FONT> <P><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>Felipe</FONT></FONT></FONT> <P><FONT FACE="Arial"><FONT SIZE=-1><FONT COLOR="#000000">Cecil A. Galbraith <BR><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>: Felipe Jordão <BR><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>: > Environment: Windows NT4sp3, Visual C++ 5.0</FONT></FONT></FONT> <BR><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>: ></FONT></FONT></FONT> <BR><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>: > How can I start a Dialog based app hidden?  I have tried calling</FONT></FONT></FONT> <BR><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>: > ShowWindow(SW_HIDE) in OnInitDialog( ) and also setting a value for</FONT></FONT></FONT> <BR><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>: > m_nCmdShow in the App's InitInstance( ) but they don't work.  I am</FONT></FONT></FONT> <BR><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>: > trying not to draw the window at all to eliminate showing it then</FONT></FONT></FONT> <BR><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>: > hiding it (causing a flash on the screen).</FONT></FONT></FONT> <BR><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>:</FONT></FONT></FONT> <BR><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>: I wonder what would happen if you removed the WS_VISIBLE style from the</FONT></FONT></FONT> <BR><FONT FACE="Arial"><FONT COLOR="#000000"><FONT SIZE=-1>: dialog in OnInitDialog?</FONT></FONT></FONT></BLOCKQUOTE> Felipe, <P>Do you want the dialog-based app to just perform some pre-selected actions and then terminate without ever having been displayed?  If that is the case, you can just put an EndDialog call in your OnInitDialog method.  Although it sounds questionable, it is perfectly legit. <P>However, if that was not the case and you need a work-around for your visibility situation, you might try placing your dialog at some large negative coordinates such as -5000, -5000 (via SetWindowPos or MoveWindow) so that it would at least be off-screen.  Of course, you might run into problems since it would probably show up as a running process in the task list, on the task bar, and in the alt-tab list, but I don't know if that is undesirable for your situation.  (I am only suggesting this mechanism as a potential work-around until you get a handle on whatever is really going on). <P>Regards, <P>= Jeff = <BR> </BODY> </HTML> --------------C3C6EA16405F99DD64E438BD--
Tue, 09 Nov 1999 03:00:00 GMT

chris losing #5 / 5	Hiding a dialog based app on startup Quote: >Environment: Windows NT4sp3, Visual C++ 5.0 >How can I start a Dialog based app hidden? I have tried calling >ShowWindow(SW_HIDE) in OnInitDialog( ) and also setting a value for >m_nCmdShow in the App's InitInstance( ) but they don't work. I am trying >not to draw the window at all to eliminate showing it then hiding it >(causing a flash on the screen). >any ideas? if it's dialog-based, then there's a DoModal call in yourApp.cpp . whenever i have to do stuff before popping the dialog up, i just do it before the DoModal call. You can still use all (well, most) of the functions in the dialog class if it's not actually running. -c ----------------------------------------------------------------------- c h r i s l o s i n g e r He woke in darkness, the word "penumbras" ringing in his head. ReplyTo address has been corrupted to deter unwanted e-mail. Use the address above.
Tue, 09 Nov 1999 03:00:00 GMT

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