Article View: borland.public.cppbuilder.nativeapi
Article #15399Re: A very strange question
From: Troels Jakobsen
Date: Fri, 04 Jul 2003 06:51
Date: Fri, 04 Jul 2003 06:51
48 lines
2699 bytes
2699 bytes
I'm guessing form1's Visible property is false. In that case it won't redraw its controls, even though it actually is visible. If you can find a way to set Form1->Visible to true and perhaps call its Application->Restore at the time the form is shown, I think it will work properly. Troels HuangC wrote in message <3f03f89d$1@newsgroups.borland.com>... >hi all, > >a strange question, >I created a simple application with only one window named Form1, >the form's WindowState has been set to wsMinimized, >then add some simple controls on it. >this is the first instance. > >in another instance >create a simple application with only one window too(named Form2), >I add three button on it, the following three line >is the event handle function of each button. >HWND hWnd = FindWindow(NULL, "Form1"); if (hWnd != NULL) > >SendMessage(hWnd, WM_SYSCOMMAND, SC_MAXIMIZE, 0);// Button1OnClick >SendMessage(hWnd, WM_SYSCOMMAND, SC_MINIMIZE, 0);// Button2OnClick >SendMessage(hWnd, WM_SYSCOMMAND, SC_RESTORE, 0); // Button3OnClick > >when the first instance run, it was minimized automatical, >don't hit it from the taskbar, run the second program, >Click button1 or button2, the form1 will maximize or restore, >but the controls added before were disappeared. >however if i hit the iconic in the taskbar, it's OK, Why? > >Another similar question, >Don't set the WindowState wsMinimized first, >the other conditions were same as above, > >click button2 first in form2, form1 minimized ok, >click button1 or button3 in form2, form1 maximized or restore ok, >click button2 again, failed, do not respond, >even click the minimize button in the title bar, why? > >WinXP Profession/P4 1.8G/512M > >do you meet the same things?
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10cc67,3047a8fdb7c36cf1 X-Google-Attributes: gid10cc67,public X-Google-ArrivalTime: 2003-07-04 00:09:36 PST From: "Troels Jakobsen" <dont@like.spam> Newsgroups: borland.public.cppbuilder.nativeapi References: <3f03f89d$1@newsgroups.borland.com> Subject: Re: A very strange question Date: Fri, 4 Jul 2003 08:51:05 +0200 Lines: 50 X-Newsreader: Microsoft Outlook Express 4.72.2106.4 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 NNTP-Posting-Host: 80.196.79.114 Message-ID: <3f0523db@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1057301467 80.196.79.114 (3 Jul 2003 23:51:07 -0700) Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-04!sn-xit-01!sn-xit-09!supernews.com!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail