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search for serial communication class on this site, "Ramon" suchabody has written one that does just the job.
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if you search the msdn by the following keywords:
Bitmap::SetPixel(x, y, color)
Graphics::FromImage(image)
you can find two gdi+ examples:
(1)
VOID Example_SetPixel(HDC hdc)
{
Graphics graphics(hdc);
// Create a Bitmap object from a JPEG file.
Bitmap myBitmap(L"Climber.jpg");
// Draw the bitmap.
graphics.DrawImage(&myBitmap, 0, 0);
// Create a checkered pattern with black pixels.
for (UINT row = 0; row < myBitmap.GetWidth(); row += 2)
{
for (UINT col = 0; col < myBitmap.GetHeight(); col += 2)
{
Status stat=myBitmap.SetPixel(row, col, Color(255, 0, 0, 0));
ASSERT(stat==Ok)//!!!!!!!!!!!!!!!!!!!!!!!!!! FAIL!!!!!!!!!!!!!!!!!!!
}
}
// Draw the altered bitmap.
graphics.DrawImage(&myBitmap, 200, 0);
}
(2)
VOID Example_FromImage(HDC hdc)
{
Graphics graphics(hdc);
// Create an Image object from a PNG file.
Image image(L"Mosaic.png");
// Create a Graphics object that is associated with the image.
Graphics* imageGraphics = Graphics::FromImage(&image);
// Alter the image.
SolidBrush brush(Color(255, 0, 0, 255));
Status stat=imageGraphics->FillEllipse(&brush, 10, 40, 100, 50);
ASSERT(stat==Ok)//!!!!!!!!!!!!!!!!!!!!!!!!!! FAIL!!!!!!!!!!!!!!!!!!!!!
// Draw the altered image.
graphics.DrawImage(&image, 30, 20);
delete imageGraphics;
}
As I pointed out above the two of the examples don't work due to SetPixel and FillEllipse failures....
Generally some functions in gdi+ work fine, and other functions don't...
I testes my app on other machines and the result is the same....I can't make SetPixel function work at all !!
Thank you in advance...
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This i know is gonna be simple but it is foxing me.
I have a dialog based application. On the main form it minimizes and maximises correctly, if i open a pop-up dialog from the main dialog then minimize the pop-up box it minimizes to the corner of the desktop not the taskbar, leaving the parent window showing (disabled) on the desktop.
I have tried <popupdialog>->SetParent(this) before calling DoModal but this creates an exception. Has anybody any ideas what i am doing wrong.
Thanks
Matt
Matt G
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You should pass 'this' into the dialog when you create it, thus making your main dialog the parent.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002
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Let's say that I've developed a COM-inprocess STA server.
QUESTION 1:
A c++ client can specify STA client thread by:
CoInitialize(NULL, COINIT_APARTMENTTHREADED);
How can you do this from an ASP application? For instance, you cant specify client threading model with CreateObject:
<% Set Session("ad") = Server.CreateObject("MSWC.AdRotator")%>
This will store the com server in session scope. But threading model?
QUESTION 2:
I am writing a backend server component that generate a SQL "statement" based based on input ASP. What's the best threading model for this situation? Note that this component is NOT responsible for database access. It simply get input from ASP and pass back a string to ASP
Thanks
norm
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norm wrote:
How can you do this from an ASP application?
You can't. The thread model will follow that of the server component.
norm wrote:
<% Set Session("ad") = Server.CreateObject("MSWC.AdRotator")%>
This will store the com server in session scope.
Try not to do this. I don't know for this specific component, but storing an STA component on the Session or Application objects will impact your server performance and scalability very soon. The ASP engine has only one STA thread for creating and executing components. This means it will create a bottleneck for your pages and can hang your entire server.
My latest article:
SQL Server DO's and DONT's[^]
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Thanks, reading up on MSDN. They suggest Both or Apartment. And recommended NoEntry and Free.
So, look like MTA-Both-inprocess server will be the solution.
QUOTE: "The thread model will follow that of the server component."
Thanks, that's very helpful. Didnt see this in any doc yet...
norm
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Hello,
i have an MDIChildWnd with StatusBar and Sizegripper.
I now want to change this resizable window into a non-resiable one, and vice versa. I removed WS_THICKFRAME from frame window. The window size is now fixed but the Statusbar don't get updated and the sizegipper is still shown. I tried a lot (e.g. invalidate, setwindowpos with SWP_FRAMECHANGE) to get it repainted correctly but it only works if i call the function twice (from menu or button).
Has anyone an idea how to change this dynamically.
Any help would be great
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Hi all, I've been sent messages about my question, I did everything they told me but there's still something I'm doing wrong.I'll tell you with details...: I'm doing a Win32 program. My program is Dialog based and i've put some controls on it. The problem is that i've put a notified picture control and I can't change the mouse pointer, everytime is moving over that control, from Arrow to Hand???....HEEELLLPPP!!!
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Did you try subclassing the window like I told you. That should definitely work. Also try chaning the cursor to a cross for example IDC_CROSS. The hand does not work with all windows version. VC 6.0 doesn't even recognize IDC_HAND when I try to compile it so I had to download a cursor from the internet that looks like a hand and load it in as a resource. If you are still stuck you can e-mail me your code, I'll put in the necessary code, comment it, and mail it back to you.
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i sent you an email but i forgot to tell you that i didn't subclass it... Oopsss Sorry!!!
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Hi!
I have created a simple SDI application with with a CommandBand on top of my application window.
I have created the CommandBand like in the tutorial Using Windows CE CommandBands in an MFC based Application
by Bruce Hearder.
The problem is that when I am opening a dialog, like the "Open File..." dialog and invoke some of the SIP elements, like the Keyboard Input and press ENTER to close the dialog, after the dialog has closed, the CommandBand will be not visible! It looks like the view does resized to the whole area and the CommandBand will be moved outside the screen. It is only when I am opening a dialog and invoke a SIP element and close the dialog (during the dialog is closing the SIP Keyboard is visible).
How can I fix that? Please help!
Daniel 
---------------------------
Never change a running system!
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void CMainFrame::OnActivate(UINT nState, CWnd* pWndOther, BOOL bMinimized)
{
CFrameWnd::OnActivate(nState, pWndOther, bMinimized);
ResizeView();
}
void CMainFrame::OnSettingChange(UINT uFlags, LPCTSTR lpszSection)
{
CFrameWnd::OnSettingChange(uFlags, lpszSection);
ResizeView();
}
Daniel
---------------------------
Never change a running system!
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I have written an application that sticks to a target application, I've done this by writing a dll that implements a windows hook (so it gets put into the target app's process space), then i've subclassed the windows proc. In my new windows proc i send the winodows move messages to my application.
Anyway all this works fine on windows XP, 2000, NT but i'm having problems on windows 98.
The move messages get passed fine, but when i minimize the application, it crashes. If I rerun the application it all works fine, I can't really put my finger on what the problem could be ?
Has anyone else out there had any experiance in this field ?
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btw... I know you a few years, thx, what is the connection to 'codeguru'?
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Anonymous wrote:
what is the connection to 'codeguru'
What do you mean with connection?
type www. then then the name co*d* g*ur* .com in the address field and press enter! 
Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!
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He's probably aware that there is a connection between CP and CG, being that Chris escaped CG to start CP.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002
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exactly... is there a history why and what? at a birthday you usualy want (or forced) to hear boring backtime stories 
Rikkard, compare articles on both sides... you will spot the "connection"
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Anonymous wrote:
Rikkard, compare articles on both sides... you will spot the "connection
I see, I got scared when I thought you were asking for Co*eG**us address!
Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!
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Chris and others helped out @ CodeGuru, which was started by Zafir. CodeGuru was eventually sold, causing it (imho) to decline into a poorly maintained state. Chris saw the opportunity to do a (much) better job and did it. Some of us who helped out @ CG continued to do the same @ CP.
/ravi
Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com
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May I get the coordinates of the hot spot of the cursor? If yes then how?
Best regards,
Eugene Pustovoyt
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::GetCursorPos( ) ?
Wenn ist das Nunstück git und Slotermeyer? Ja! Beierhund das oder die Flipperwaldt gersput!
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I was seeking the gethotspot api few months ago and never found it. it should be in the CURSORINFO struct but it isn't.
If someone know a way to get this hot spot i'm very interested in too. I need it to remove a define in my code.
Dimitri Rochette
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Hi,
I want to create an application which gives a certain amt of the system disk space for global sharing. Is there any mechanism for that? How can I do that? Also other client machines should be able to store their files, if required, to this shared storage space and retrieve it later.
How can I restrict the shared space to a fixed amt?
Kindly help.
Regards,
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I would like to create a class much like a CListCtrl for file selection on a Pocket PC. I don't like the file dialog that's ready-to-use.
BUT, I'd like it to have a simple interface. So my thought was that I could use protected inheritance to derive a class (CFileListCtrl) from CListCtrl, so users of my custom control wouldn't be able to mess with any CListCtrl methods that could "mess up" my custom control.
Does this seem like a reasonable approach? Do any of you know if I have to do anything other than set up my custom methods (which will then use the methods of CListCtrl), and registering the custom control class as per one of the tutorials on this site on custom controls?
I'd appreciate any input. Thanks.
- Kati
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