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Problem with drawing PNG with GDI+ damian221-Aug-04 11:40 damian2 21-Aug-04 11:40  I have problem with drawing PNG with alpha channel using DrawImage. It works fine if I draw on screen but when I am using off-screen buffer all pixels which are transparent are drawn in black. Strange thing is that if I insert another DrawImage before this first everything starts working again. Apparently this additional DrawImage changes state of Graphics object. I dumped CompositingMode, CompositingQuality, SmoothingMode and etc before and after this magical DrawImage but all values are the same before and after this first call to DrawImage. Does anybody know what is changed in Graphics object when DrawImage is called? Regards, Damian Re: Problem with drawing PNG with GDI+ PJ Arends21-Aug-04 12:26 PJ Arends 21-Aug-04 12:26  Damian2 wrote: It works fine if I draw on screen but when I am using off-screen buffer all pixels which are transparent are drawn in black Probably because the memory bitmap you are drawing to is all black before anything is drawn, but the screen is white. Do a FillRectangle with a white brush before calling DrawImage. "You're obviously a superstar." - Christian Graus about me - 12 Feb '03 "Obviously ???  You're definitely a superstar!!!" mYkel - 21 Jun '04 Within you lies the power for good - Use it! Re: Problem with drawing PNG with GDI+ damian221-Aug-04 22:27 damian2 21-Aug-04 22:27  I clear this off-screen buffer with Graphics.Clear on the beginning. This is not the reason Re: Problem with drawing PNG with GDI+ PJ Arends22-Aug-04 5:13 PJ Arends 22-Aug-04 5:13  Ok, then post your code here. How are you allocating your memory buffer? How are you loading your image file? "You're obviously a superstar." - Christian Graus about me - 12 Feb '03 "Obviously ???  You're definitely a superstar!!!" mYkel - 21 Jun '04 Within you lies the power for good - Use it! Disable key combination Kamis21-Aug-04 11:07 Kamis 21-Aug-04 11:07  Reading all the articles about hooks I've found out how to monitor keyboard input but is there a way to disable key combinations on this level of interception? For example when windows is hooked by my program and user presses Shift+Insert I wouldn't like the text to be inserted from the clipboard but do some other actions. And vice versa how can I emulate different key combinations presses? Re: Disable key combination Scozturk21-Aug-04 22:10 Scozturk 21-Aug-04 22:10  As you said that it is possible using keyboard hooks (as you said there are lots of artciles on codeproject)... I think I have disabled the ctrl+alt+del in one my applications and instead of restarting it was calling my About Dialog... Well... I am a beginner ... Re: Disable key combination Dudi Avramov22-Aug-04 0:41 Dudi Avramov 22-Aug-04 0:41  Use GetAsyncKeyState API to determine whether Shift or Control buttons were pressed. model 2 modeless alex.barylski21-Aug-04 11:05 alex.barylski 21-Aug-04 11:05  Once I have created a dialog using DoModal() is it possible at runtime to make it a modeless dialog after a button has been pressed??? Thanks How do I print my voice mail? Re: model 2 modeless Ravi Bhavnani21-Aug-04 11:09 Ravi Bhavnani 21-Aug-04 11:09  How about instead always creating a modeless dialog and calling its behaveAsModal() method to make it behave as a modal/modeless dialog? void CMyDialog::behaveAsModal (bool bModal) { GetParent()->EnableWindow (!bModal); } Remember to call behaveAsModal (false); when the user dismisses the dialog, otherwise there will be no way to transfer control back to the parent dialog. /ravi My new year's resolution: 2048 x 1536 Home | Articles | Freeware | Music ravib@ravib.com Re: model 2 modeless alex.barylski22-Aug-04 12:14 alex.barylski 22-Aug-04 12:14  it's for a shell extension so I imagine the parent is the desktop... Would that be a good idea still do you think? How do I print my voice mail? Re: model 2 modeless Ravi Bhavnani22-Aug-04 12:36 Ravi Bhavnani 22-Aug-04 12:36  Ah. Then you probably don't want to use a modal dialog (unless you intentionally require it to be system modal). /ravi My new year's resolution: 2048 x 1536 Home | Articles | Freeware | Music ravib@ravib.com paralel port programming using visual c++ Anonymous21-Aug-04 9:24 Anonymous 21-Aug-04 9:24  i m trying to program a parallel port and i just want to ask inport and outport functions are in which library Re: paralel port programming using visual c++ Ravi Bhavnani21-Aug-04 11:02 Ravi Bhavnani 21-Aug-04 11:02  This[^] article may provide some clues. /ravi My new year's resolution: 2048 x 1536 Home | Articles | Freeware | Music ravib@ravib.com HTTP and Scok Version 4 & 5 ihjaffery21-Aug-04 9:13 ihjaffery 21-Aug-04 9:13  Hi Everyone! I need a help. I am in proces of development of Instant Messenger and Conferencing Tool. What I need is a support for proxy Server Also. Like if you are behing Wingate Proxy and you want to Use the option for proxy Setting. Like in MSN --> Tools --> options --> Connection ---> I want all the feature of this page. Let me know if any one can help me. I will be really grateful. Thank and Regards Irfan Haider Jaffery Software Engineer Re: HTTP and Scok Version 4 & 5 Ravi Bhavnani21-Aug-04 11:06 Ravi Bhavnani 21-Aug-04 11:06  Irfan, these articles may provide some help: C# class for connecting via a SOCKS5 proxy server[^] HTTP Tunneling (HTTP proxy Socket Client)[^] /ravi My new year's resolution: 2048 x 1536 Home | Articles | Freeware | Music ravib@ravib.com Help with using visual studio for c++ linjc2321-Aug-04 6:02 linjc23 21-Aug-04 6:02  I have been using g++ to compile C++ programs in Linux but I just got Visual Studio .NET so I have been trying to use that. When I go create a new C++ project is visual studio, however, I cant figure out which option I'm suppose to pick. Programs that worked with g++ don't work when I add them to my Visual C++ projects?? Does anyone know which Visual C++ project to create for regular C++ programs? Another problem I am having with Visual C++ is when I try to overload constructors. Client is a user defined class I created and when I create a instance of it with: Client c(int num, int age, int entered, char sex, int value); and then call: c.print(); it says that c must be a class/struct/union. I have a pverloaded constructor with matching parameters and there is no compile error for the initialization of c so why does it say its not a class? Thanks in advance. Re: Help with using visual studio for c++ Kevin McFarlane22-Aug-04 4:27 Kevin McFarlane 22-Aug-04 4:27  linjc23 wrote: I have been using g++ to compile C++ programs in Linux but I just got Visual Studio .NET so I have been trying to use that. When I go create a new C++ project is visual studio, however, I cant figure out which option I'm suppose to pick. Programs that worked with g++ don't work when I add them to my Visual C++ projects?? Does anyone know which Visual C++ project to create for regular C++ programs? I suspect you want "Win 32 Console Project" Kevin VC++ 2005 - New MSDN STL.NET Article Kevin McFarlane21-Aug-04 4:40 Kevin McFarlane 21-Aug-04 4:40  http://msdn.microsoft.com/visualc/default.aspx?pull=/library/en-us/dnvs05/html/stl-netprimer.asp[^] Kevin List Control Abbas_Riazi21-Aug-04 2:32 Abbas_Riazi 21-Aug-04 2:32  I developed a new application that show images like thumbnails in explorer in a List Control. The problem is when the user clicks on a thumbnail, the thumbnails shifts right and left. I don't want this. See these picture to better understand what I say. Normal[^] Shifted[^] Thanks, A. Riazi Re: List Control 4apai21-Aug-04 2:39 4apai 21-Aug-04 2:39  post onclick code 4 better understanding... 4apai There're no impossible tasks. There're tasks that required infinite period of time. Re: List Control Abbas_Riazi21-Aug-04 2:47 Abbas_Riazi 21-Aug-04 2:47  The OnClick itself doesn't do anything. It seems that because the thumbnails are bigger than width of ListControl this behavior occures. A. Riazi Remote logon 4apai21-Aug-04 1:06 4apai 21-Aug-04 1:06  hi want to hear your opinion about the next: how to logon remotely to the lan computer i use following code: HANDLE hToken = 0; BOOL bRet = LogonUser("user", "domain", "password", LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, &hToken); the function return 0. hToken is set to NULL. and the getlasterror return 'logon failure: unknown user name or password.' i check all parameters for conveniency twicely. in MSDN writes that "You cannot use LogonUser to log on to a remote computer". i think this statement include the answer. then my qeustion is: how to logon user on a remote machine? any ideas? 4apai There're no impossible tasks. There're tasks that required infinite period of time. Re: Remote logon 4apai21-Aug-04 4:24 4apai 21-Aug-04 4:24  ok. i'll redescribe u what i exactly need. i've a local station station1. (i've here an administartor account name1) and had a remote station station2. (i've here an administartor account name2) i logon to station1 with name1 then i need to perform some functionality on station1, which require context of administartor account on station2. so i need to log on name2 account on station2 and then using f.e. createprocessasuser with retrieved user token run process which will perform that functionality. a simple sollution is to add name1.dns_name to administartors group on station2. then i dont need any additional tasks to perform. all functionate perfect. but the problem is, that it is not allowed due to restrictions or project. if i dont explain quite clear or u've any ideas then post me. 4apai There're no impossible tasks. There're tasks that required infinite period of execution time. About Dlls? Zero_One_ADO20-Aug-04 23:57 Zero_One_ADO 20-Aug-04 23:57  Hello, I want to create a DLL and Use it by #import directive (Any Simple Link or Example?) Best Wishes, Thanks. Re: About Dlls? 4apai21-Aug-04 0:16 4apai 21-Aug-04 0:16  "The #import directive is used to incorporate information from a type library. The content of the type library is converted into C++ classes, mostly describing the COM interfaces." do you want to create COM type library? 4apai There're no impossible tasks. There're tasks that required infinite period of time.

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