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Create Compatible Dc


Here's the part of the code that captures the screen and saves it: width = GetSystemMetrics(SM_CXMAXTRACK)+8; height = GetSystemMetrics(SM_CYMAXTRACK)-8; hwindowDC=GetDC(GetDesktopWindow()); hwindowCompatibleDC=CreateCompatibleDC(hwindowDC); SetStretchBltMode(hwindowCompatibleDC,COLORONCOLOR); // create a bitmap hbwindow = CreateCompatibleBitmap( hwindowDC, width, intelligence agencies claim that Russia was behind the DNC hack? Then CreateImage is called on the staging grid > and the image produced is passed to SetCellImage called on the display > grid.>> The problem is, the grid crashes hard when So each click engenders 96 or 384 new images. have a peek at this web-site

Wednesday, July 26, 2006 8:17 PM Reply | Quote Answers 0 Sign in to vote Interesting. Thank you for anyone who can assist in this. Both of these cause a GDI resource leak which will lead to the symptoms you describe. Although the > images are relatively small and simple (text-based), there are a lot of > them, and they are refreshed frequently. http://community.sharpdevelop.net/forums/p/927/3056.aspx

Create Compatible Dc

Choose Switch to see the topic in its original location. Thanks. Hewlett-Packard Professional Books To deliver high-performance Windows applications, you need an in-depth understanding of the Win32 GDI and DirectDraw--but until now, it's been virtually impossible to discover what's going on "behind" If a DIB section, which is a bitmap created by the CreateDIBSection function, is selected into the device context identified by the hdc parameter, CreateCompatibleBitmap creates a DIB section.

Syntax C++ Copy HBITMAP CreateCompatibleBitmap( _In_ HDC hdc, _In_ int nWidth, _In_ int nHeight ); Parameters hdc [in] A handle to a device context. Ver uma prévia deste livro » O que estão dizendo-Escrever uma resenhaNão encontramos nenhuma resenha nos lugares comuns.Páginas selecionadasPágina de títuloÍndiceÍndiceConteúdoWindows Graphics System Architecture63 GDIDirectDraw Internal Data Structures129 Spying in the The exception is low-level so it > cannot be caught in code.>> I admit I am over-stressing these methods so I am not writing to complain. > However, I would appreciate Ammyy Target Cannot Be Used With This Graphic Device Driver So each click >> engenders 96 or 384 new images.>>But how are these images created?

asked 3 years ago viewed 1298 times active 3 years ago Linked 0 Memory leaks in c++ dll 1 CreateCompatibleDC fails after calling it exactly 4,984 times Related 0why CreateDIBSection() fails Welcome to SharpDevelop Community Sign in | Join | Help in Bug Reporting Support (Entire Site) Search Home Blogs Forums Photos SharpDevelop Community » Support » Bug Reporting » Failed to Once formatted on the staging grid, the image is transferred to the display grid by calling SetCellImage on the display grid and passing it the image just created on the staging https://msdn.microsoft.com/en-us/library/windows/desktop/dd183488(v=vs.85).aspx Return value If the function succeeds, the return value is a handle to the compatible bitmap (DDB).

All Rights Reserved. 1.800.858.2739 Pittsburgh, PA: 412.681.4343 Createcompatiblebitmap C# Very clear exposition. [Reply] April 17, 2009 at 12:17 am Reply Leave a Comment or Cancel reply Your email address will not be published. Solution #1: If you are 100% sure that nobody else is using those images, you can dispose them before assigning the new set: private void button1_Click(object sender, System.EventArgs e){ for (int Related Sites Visual Studio Visual Studio Integrate VSIP Program Microsoft .NET Microsoft Azure Connect Forums Blog Facebook LinkedIn Stack Overflow Twitter Visual Studio Events YouTube Developer Resources Code samples Documentation Downloads


Even better, if you can use process explorer. http://stackoverflow.com/questions/15870591/why-does-createcompatiblebitmap-fail-after-about-a-thousand-executions Regarding Bernardo's response, I don't know the inner workings of GDI; so I don't know if the failure is caused by demanding resources (graphics handles) faster than .Net can garbage collect Create Compatible Dc Note: When a memory device context is created, it initially has a 1-by-1 monochrome bitmap selected into it. Createcompatiblebitmap Example Thursday, July 27, 2006 7:54 PM Reply | Quote Microsoft is conducting an online survey to understand your opinion of the Msdn Web site.

However, I would appreciate help if anyone knows how the memory error could be prevented. Check This Out ProcDump sysiternals tool - really really helpful to create a memory dump based on CPU Usage Silverlight 3 OutOfBrowser(OOB) behind the scenes Explained, how to host a silverlight xap package OOB Next, CreateImage is called on the staging grid to produce an image of its data. Exception Source: System.Windows.Forms Exception Method: [System.Windows.Forms]System.Windows.Forms.GraphicsBufferManager+DibGrap hicsBufferManager::bFillBitmapInfo() Nov 22 '05 #3 P: n/a rubixxcube No, that is what i don't understand, I am not doing any custom drawing or GDI work. Msdn Bitblt

Default value of number of handles configured in a 32 bit operating system are 10k which is configurable in the registry 3. "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\GDIProcessHandleQuota" has the default value of GDI handles The screen bitmap format cannot be determined. I really don't know how to get the list of gdi handles from a memory dump, there used to be a gdi windbg extension dll from microsoft but that has been Source Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you!

Why would two species of predator with the same prey cooperate? Createcompatibledc Example Last post 12-08-2005 1:21 PM by Johnny_Action. 0 replies. As far as I know, the image object does not hold any external resources so there is no reason to dipose; besides, if I disposed the image, how could it be

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The only images in the application are on a Third Party toolbar and on a few image buttons, the image buttons all contain 32 bit bitmaps. Each data >> point has associated data, and I am allowing the user to select >> dynamically which collateral data is shown by means of check boxes, etc. >> Each time Solution #2: Slightly more elegant. C# Createcompatibledc From zero to parabola in 2 symbols Why leave magical runes exposed?

MANAGED_STACK: SP               IP                                      Function 0012E46C  7AE32C56 System_Drawing_ni!System.Drawing.BufferedGraphicsContext.bFillBitmapInfo(IntPtr, IntPtr, BITMAPINFO_FLAT ByRef) ………………………………….. Reply Contact .NET Version : 1.1.4322.2032OS Version : Microsoft Windows NT 5.1.2600.0Boot Mode : NormalWorking Set Memory : 127512kb SharpDevelop Version : 1.1.2019.0Exception thrown: System.OutOfMemoryException: Failed to create a bitmap compatible Win32 GDI and DirectDraw: Accurate, under the hood, and in depth Beyond the API: Internals, restrictions, performance, and real-life problems Complete: Pixel, lines, curves, filled area, bitmap, image processing, fonts, text, have a peek here One grid is used as a staging > area to format the text.

CreateCompatibleBitmap function The CreateCompatibleBitmap function creates a bitmap compatible with the device that is associated with the specified device context. The problem is, the grid crashes hard when this is repeated a few hundred times. Are you disposing of the ones you don't need? "robert" wrote in message news:[email protected]>> I'm using the CreateImage and SetCellImage methods in my application to > display small graphics images in Randomly my application throws the following exception, and of course it only happens in production and i can't reproduct it in Testing.

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed nHeight [in] The bitmap height, in pixels. Privacy statement Dev Centers Windows Office More... I have 1GB RAM and 1.5 GB swap.

If this memory device context is used in CreateCompatibleBitmap, the bitmap that is created is a monochrome bitmap. Is this memory allocated off the heap? However, if the problem is caused by an absolute ceiling on how many images can be created or displayed -- sequentialy, not at one time -- by or on a given Win32 GDI and DirectDraw: Accurate, under the hood, and in depth Beyond the API: Internals, restrictions, performance, and real-life problems Complete: Pixel, lines, curves, filled area, bitmap, image processing, fonts, text,

I like solution #2 better because it will handle situations where someone else is using one or more of the images. # Viewing 7 posts - 1 through 7 (of 7 If not, this may be causing the "out of memory" exception. See partial stack trace below. Nov 22 '05 #5 This discussion thread is closed Start new discussion Replies have been disabled for this discussion.

And (as you said) you shouldn't dispose of images while they're being displayed. > The reason I need so many images is, I am representing data points in an > experiment, Movie about a girl who had another different life when she dreamed list of files based on permission What's the male version of "hottie"? This seems to be an OS limitation, not related to .NET. at System.Windows.Forms.DibGraphicsBufferManager.bFillBitmapInfo(IntPtr hdc, IntPtr hpal, BITMAPINFO_FLAT& pbmi) at System.Windows.Forms.DibGraphicsBufferManager.CreateCompatibleDIB(IntPtr hdc, IntPtr hpal, Int32 ulWidth, Int32 ulHeight, IntPtr& ppvBits) at System.Windows.Forms.DibGraphicsBufferManager.CreateBuffer(IntPtr src, Int32 offsetX, Int32 offsetY, Int32 width, Int32 height) at System.Windows.Forms.DibGraphicsBufferManager.AllocBuffer(Graphics

Is there a limit to the total amount of bitmap space that the system can allocate?  Is it normal for CreateCompatibleBitmap to fail with no error code?  Anyone have any ideas I think I have a solution for you (two actually). Not the answer you're looking for? sometimes yes sometimes no possible os resources check out CreateDIBSection() Kuphryn Wednesday, July 26, 2006 8:23 PM Reply | Quote All replies 0 Sign in to vote Interesting.