MFC, Automatic dialog box refreshing

Automatic dialog box refreshing

Author	Message
Josh #1 / 4	Automatic dialog box refreshing The best place is at the end of the OnInitDialog handler. You can add this handler using the MFC Wizard. Good luck ! Quote: > I'm not very used to MFC and this problem drived me crazy > during the whole week-end... please you MFC gurus, help > me ! > My app is a dialog box which calls another dialog box > ("myDialog") with the following command : > myDialog.DoModal(); > Once "myDialog" is displayed I want it to display some > strings that are in an array (let say 10 elements), but > one string every second. My problem is I don't know when > to start my refresh loop. > How do I know that the dialog box is ready ? Can't find > the appropriate WM message. > I thought I could respond to some WM_IDLE, but I can't > find such messages for a DialogBox. > I tried WM_PAINT, but as I supposed, display occurs only > when the whole array is parsed and therefore, only the > last string is displayed after 10 seconds. > I also tried to start refreshing after the user clicked on > some button, it worked fine because I had the callback > On_ButtonCLick in which I could put my refresh loop. > But I want the refreshing to start as soon as the dialog > is shown. What callback or WM message should I respond to ? > Thanks for your help, > Guillaume.
Fri, 06 May 2005 12:14:14 GMT

Guillaum #2 / 4	Automatic dialog box refreshing Thanks for your answer, but I tried your solution and it didn't work. I got the same result: Only the last string is displayed. This behavior accords with the MFC wizard that indicates "Sent to a ialog box before thealog box is displayed". So I think this callback is not appropriate. Did I done wrong ? Is there another solution ? Guillaume. Quote: >-----Original Message----- >The best place is at the end of the OnInitDialog handler. You can add this Quote: >handler using the MFC Wizard. >Good luck ! >> I'm not very used to MFC and this problem drived me crazy >> during the whole week-end... please you MFC gurus, help >> me ! >> My app is a dialog box which calls another dialog box >> ("myDialog") with the following command : >> myDialog.DoModal(); >> Once "myDialog" is displayed I want it to display some >> strings that are in an array (let say 10 elements), but >> one string every second. My problem is I don't know when >> to start my refresh loop. >> How do I know that the dialog box is ready ? Can't find >> the appropriate WM message. >> I thought I could respond to some WM_IDLE, but I can't >> find such messages for a DialogBox. >> I tried WM_PAINT, but as I supposed, display occurs only >> when the whole array is parsed and therefore, only the >> last string is displayed after 10 seconds. >> I also tried to start refreshing after the user clicked on >> some button, it worked fine because I had the callback >> On_ButtonCLick in which I could put my refresh loop. >> But I want the refreshing to start as soon as the dialog >> is shown. What callback or WM message should I respond to ? >> Thanks for your help, >> Guillaume. >.
Fri, 06 May 2005 21:18:38 GMT

Martin Gi #3 / 4	Automatic dialog box refreshing Simplest thing I can think of, if I understood you correctly, is to provide your own OnShow event handler (in your myDialog class). Check that bShow is true (dialog is being displayed). Create a timer in your dialog at this point (SetTimer(...)) (possibly with an initial delay to give the dialog time to display). To handle the timer you need write an OnTimer event handler (for your myDialog class) and check for your timer's ID and then keep updating your display when the timer fires. Don't forget to call KillTimer(ID) when the last element has been displayed. Hope this helps. --Martin Quote: > Thanks for your answer, but I tried your solution and it > didn't work. I got the same result: Only the last string > is displayed. This behavior accords with the MFC wizard > that indicates "Sent to a ialog box before thealog box is > displayed". So I think this callback is not appropriate. > Did I done wrong ? > Is there another solution ? > Guillaume. > >-----Original Message----- > >The best place is at the end of the OnInitDialog > handler. You can add this > >handler using the MFC Wizard. > >Good luck ! > >> I'm not very used to MFC and this problem drived me > crazy > >> during the whole week-end... please you MFC gurus, help > >> me ! > >> My app is a dialog box which calls another dialog box > >> ("myDialog") with the following command : > >> myDialog.DoModal(); > >> Once "myDialog" is displayed I want it to display some > >> strings that are in an array (let say 10 elements), but > >> one string every second. My problem is I don't know > when > >> to start my refresh loop. > >> How do I know that the dialog box is ready ? Can't find > >> the appropriate WM message. > >> I thought I could respond to some WM_IDLE, but I can't > >> find such messages for a DialogBox. > >> I tried WM_PAINT, but as I supposed, display occurs > only > >> when the whole array is parsed and therefore, only the > >> last string is displayed after 10 seconds. > >> I also tried to start refreshing after the user > clicked on > >> some button, it worked fine because I had the callback > >> On_ButtonCLick in which I could put my refresh loop. > >> But I want the refreshing to start as soon as the > dialog > >> is shown. What callback or WM message should I respond > to ? > >> Thanks for your help, > >> Guillaume. > >.
Sat, 07 May 2005 11:19:33 GMT

Joseph M. Newcome #4 / 4	Automatic dialog box refreshing #define IDT_SHOW 1 // or some other random number BOOL CMyDialog::OnInitDialog() { ... usual stuff StartTimer(IDT_SHOW, 1000, NULL); ... usual stuff } void CMyDialog::OnTimer(UINT nTimerId, ....assorted stuff here...) { switch(nTimerId) { /* nTimerId / case IDT_SHOW: c_MyControl.SetWindowText(strings[i]); i++; if(i > ...some limit of your choice...) { / all done / KillTimer(IDT_SHOW) } / all done / } / nTimerId */ } Quote: >The best place is at the end of the OnInitDialog handler. You can add this >handler using the MFC Wizard. >Good luck ! >> I'm not very used to MFC and this problem drived me crazy >> during the whole week-end... please you MFC gurus, help >> me ! >> My app is a dialog box which calls another dialog box >> ("myDialog") with the following command : >> myDialog.DoModal(); >> Once "myDialog" is displayed I want it to display some >> strings that are in an array (let say 10 elements), but >> one string every second. My problem is I don't know when >> to start my refresh loop. >> How do I know that the dialog box is ready ? Can't find >> the appropriate WM message. >> I thought I could respond to some WM_IDLE, but I can't >> find such messages for a DialogBox. >> I tried WM_PAINT, but as I supposed, display occurs only >> when the whole array is parsed and therefore, only the >> last string is displayed after 10 seconds. >> I also tried to start refreshing after the user clicked on >> some button, it worked fine because I had the callback >> On_ButtonCLick in which I could put my refresh loop. >> But I want the refreshing to start as soon as the dialog >> is shown. What callback or WM message should I respond to ? >> Thanks for your help, >> Guillaume. Joseph M. Newcomer [MVP] Web: http://www3.pgh.net/~newcomer MVP Tips: http://www3.pgh.net/~newcomer/mvp_tips.htm
Mon, 09 May 2005 05:32:55 GMT

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