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Re: Isn't there native support for PNG in Windows? Nish Nishant27-Dec-01 23:41 Nish Nishant 27-Dec-01 23:41  Thanks for all that info. The fact is right now I am in a sort of anti-PNG attitude for some personal-job-related reasons Nish Sonork ID 100.9786 voidmain www.busterboy.org If you don't find me on CP, I'll be at Bob's HungOut Re: Isn't there native support for PNG in Windows? markkuk27-Dec-01 23:24 markkuk 27-Dec-01 23:24  You should read the Introduction to PNG Features and the Rationale appendix of the PNG spec Re: Isn't there native support for PNG in Windows? Nish Nishant27-Dec-01 23:42 Nish Nishant 27-Dec-01 23:42  Thanks MarkKuk Nish Sonork ID 100.9786 voidmain www.busterboy.org If you don't find me on CP, I'll be at Bob's HungOut Re: Isn't there native support for PNG in Windows? Christian Graus28-Dec-01 0:33 Christian Graus 28-Dec-01 0:33  Nish [BusterBoy] wrote: What's wrong with JPG,BMP,GIF??? Why do people want PNG all of a sudden? I dunno about png ( although a lot of people put it forward as a replacement for gif ), but Unisys own the patent to the compression used in gif, so any code that uses gif requires payment of royalties. That is what killed gif online. Christian After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001 Sonork ID 100.10002:MeanManOzI live in Bob's HungOut now Re: Isn't there native support for PNG in Windows? James R. Twine28-Dec-01 7:15 James R. Twine 28-Dec-01 7:15  > Isn't there native support for PNG in Windows?    No (not directly in the Win32 SDK, GDI, or MFC), but there is in GDI+...    Peace! -=- James. Re: Isn't there native support for PNG in Windows? Chris Losinger28-Dec-01 9:16 Chris Losinger 28-Dec-01 9:16  not entirely true... the latest BITMAPINFOHEADER specs include the option of a PNG or JPG encoded data in addition to the old formats. -c Smaller Animals Software, Inc. Re: Isn't there native support for PNG in Windows? James R. Twine28-Dec-01 16:04 James R. Twine 28-Dec-01 16:04  > not entirely true... the latest BITMAPINFOHEADER specs include the option of a > PNG or JPG encoded data in addition to the old formats.    You are correct... For the in-memory representation of the images, but for loading and saving of PNG (or JPEG for that matter) files?  My guess is that is what the OP meant by "native support": the ability to easily load and save a PNG file just as easily as calling "::LoadImage( <pathtobmpfile> ):.    I know that ImportImage(...) does, but that requires an add-on (DirectX/DirectAnimation) to Windows.    Peace! -=- James. Displays a Transparent Image Using Memory DC clemence27-Dec-01 21:51 clemence 27-Dec-01 21:51  Hi I would like to know if anybody can help me out here. I want to create a transparent Image By Performing all operation on a Memory dc. This Is what I have done so far and it works ..The only problem is that I do not know how to initialise the Bitmap which is selected into the memory DC My current code is as folllows.. DrawTrans(CDC* pDC, COLORREF crColor) { COLORREF m_crWhite = RGB(255,255,255); COLORREF m_crBlack = 0; COLORREF crOldBack = pDC->SetBkColor(m_crWhite); COLORREF crOldText = pDC->SetTextColor(m_crBlack); COLORREF crOldBkMode = pDC->SetBkMode(TRANSPARENT); // Create two memory dcs for the image and the mask CDC dcTrans, dcImage; CDC dcFinal; CBitmap bmpFinal; bmpFinal.CreateCompatibleBitmap(pDC,ImageWidth, nImageHeight); dcFinal.CreateCompatibleDC(pDC); dcImage.CreateCompatibleDC(pDC); dcTrans.CreateCompatibleDC(pDC); //m_PImageInfoData is structure contaiing BITMAPINFO bmpInfo; /*char* */ BYTE* pszData; int nImageWidth = m_pImageInfoData->bmpInfo.bmiHeader.biWidth; int nImageHeight = m_pImageInfoData->bmpInfo.bmiHeader.biHeight; int nUsage = DIB_RGB_COLORS; // Create the mask bitmap CBitmap bitmapTrans, bitmapImage; bitmapImage.CreateCompatibleBitmap(pDC, ImageWidth, nImageHeight); bitmapTrans.CreateBitmap(nImageWidth, nImageHeight, 1, 1, NULL); CBitmap* pOldBitmapImage = dcImage.SelectObject(&bitmapImage); // Select the mask bitmap into the appropriate dc CBitmap* pOldBitmapTrans = dcTrans.SelectObject(&bitmapTrans); CBitmap *pOldBmp = dcFinal.SelectObject(&bmpFinal); StretchDIBits(dcImage.GetSafeHdc(), 0, 0, nImageWidth, nImageHeight, 0, 0, nImageWidth, nImageHeight, m_pImageInfoData->pszData, &(m_pImageInfoData->bmpInfo), DIB_RGB_COLORS, SRCCOPY); dcImage.SetBkColor(crColor); // Build mask based on transparent colour dcTrans.BitBlt(0, 0, nImageWidth, nImageHeight, &dcImage, 0, 0, SRCCOPY); dcFinal.StretchBlt(0, 0, nImageWidth, nImageHeight, &dcImage, 0, 0, nImageWidth, nImageHeight, SRCINVERT); dcFinal.StretchBlt(0, 0, nImageWidth, nImageHeight, &dcTrans, 0, 0, nImageWidth, nImageHeight, SRCAND); dcFinal.StretchBlt(0, 0, nImageWidth, nImageHeight, &dcImage, 0, 0, nImageWidth, nImageHeight, SRCINVERT); pDC->StretchBlt(0, 0, nImageWidth, nImageHeight, &dcImage, 0, 0, nImageWidth, nImageHeight, SRCCOPY); // Restore settings dcTrans.SelectObject(pOldBitmapTrans); dcImage.SelectObject(pOldBitmapImage); dcFinal.SelectObject(pOldBmp); bitmapTrans.DeleteObject(); bitmapImage.DeleteObject(); bmpFinal.DeleteObject(); pDC->SetBkMode(crOldBkMode); pDC->SetTextColor(crOldText); pDC->SetBkColor(crOldBack); dcFinal.DeleteDC(); dcTrans.DeleteDC(); dcImage.DeleteDC(); This code works perfectly fine except for the garbage values that are displayed bcoz the Bitmap is not initialized...I would like to know what i can do to initialse the bitmap to NULL ... Thanks ... Clemence Re: Displays a Transparent Image Using Memory DC Mike Nordell27-Dec-01 22:58 Mike Nordell 27-Dec-01 22:58  I would like to know what i can do to initialse the bitmap to NULL BitBlt and BLACKNESS. /Mike Re: Displays a Transparent Image Using Memory DC Rickard Andersson2028-Dec-01 0:36 Rickard Andersson20 28-Dec-01 0:36  BOOL TransparentBlt( HDC hdcDest, // handle to destination DC int nXOriginDest, // x-coord of destination upper-left corner int nYOriginDest, // y-coord of destination upper-left corner int nWidthDest, // width of destination rectangle int hHeightDest, // height of destination rectangle HDC hdcSrc, // handle to source DC int nXOriginSrc, // x-coord of source upper-left corner int nYOriginSrc, // y-coord of source upper-left corner int nWidthSrc, // width of source rectangle int nHeightSrc, // height of source rectangle UINT crTransparent // color to make transparent ); ------------------------------ ©0d3 ©®4©k3® - That's me! ------------------------------ Re: Displays a Transparent Image Using Memory DC Christian Graus28-Dec-01 0:50 Christian Graus 28-Dec-01 0:50  Doesn't work under Windows 95. Christian After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001 Sonork ID 100.10002:MeanManOzI live in Bob's HungOut now inline asm problem in visual C++ HAM27-Dec-01 20:53 HAM 27-Dec-01 20:53  hello, Im not sure why but VS keeps locking up on me. The following code Compiles,links and executes if it is a Win32 Console App: DWORD dwHigh,dwLow; __asm { rdtsc mov dwLow, eax mov dwHigh, edx } However if this is a windowed app, MFC app it will lock up at various times, while running cl.exe or while linking. rdtsc moves the Time Stamp counter into the above registers why does this lock VS up while compiling??? Re: inline asm problem in visual C++ Mike Nordell27-Dec-01 23:17 Mike Nordell 27-Dec-01 23:17  Please elaborate. Is it VC that is "locking up" on you, or is it the app that "will lock up at various times"? You state both alternatives, and somehow I find this hard to believe. What does "lock up" mean? Attach the debugger to your hung exe and see where it's hung. Are you using a single or multi-CPU system? Remember that the TSC is CPU bound. Also keep in mind that you should serialize the CPU if doing any FP operations in proximity of this call (e.g. CPUID with EAX = 0). /Mike Re: inline asm problem in visual C++ HAM28-Dec-01 8:41 HAM 28-Dec-01 8:41  VS locks up on me as a stated. Visual Studio itself "locks up" during compiling. If i go to the task manager it states Visual sutdio is not responding . however it is using about 99% of the processor. I guesse the compiler is in a loop but i dont understand how those three lines of code could put it in a loop. As well as i stated. It will work perfect in a console only app. Any type of windowed app.. MFC or just old win32 API will lock the COMPILER up. Im not doing any floating point ops. Basicly if i use the app wiard and make a generic MFC dialog app and i insert this code anywhere in the premade code. . InitDialog(), OnButton() where ever i put this code will lock VS up. Im running an AMD 500 on XP home editition.. VS Enterprise. .with service packs. Re: inline asm problem in visual C++ HAM28-Dec-01 8:44 HAM 28-Dec-01 8:44  i did try this on another machine. AMD 900. . and it works fine. .. guesse it something with the hardware. . or maybe i got to reinstall. Window being minimized Jason Hooper27-Dec-01 19:19 Jason Hooper 27-Dec-01 19:19  I want to do something (minimize to tray) when a user hits my window's standard normal Minimize button on the title bar of the window. How do I trap this minimize box and call my tray functions instead? -Jason nirgle.bitdevil.com Re: Window being minimized Michael Dunn27-Dec-01 19:55 Michael Dunn 27-Dec-01 19:55  Handle WM_SIZE - wParam will be SIZE_MINIMIZED when your window is minimized. --Mike-- My really out-of-date homepage Buffy's on. Gotta go, bye! Sonork - 100.10414 AcidHelm Big fan of Alyson Hannigan. Re: Window being minimized Jason Hooper27-Dec-01 20:26 Jason Hooper 27-Dec-01 20:26  My prog seems to get that right off the bat after loading. I assume that's normal? Any quick way to ensure that it's the user that clicked the minimize box and not some internal MFC or Windows thing? -Jason nirgle.bitdevil.com Re: Window being minimized Nish Nishant27-Dec-01 20:59 Nish Nishant 27-Dec-01 20:59  maybe in your first ShowWindow you are passing SW_MINIMIZE as the nCmdShow parameter. Nish Sonork ID 100.9786 voidmain www.busterboy.org If you don't find me on CP, I'll be at Bob's HungOut Code Multimedia & Internet Keyboard Eugene Pustovoyt27-Dec-01 18:51 Eugene Pustovoyt 27-Dec-01 18:51  Hello everybody! Who knows, what codes are generated with multimedia and the Internet keys of keyboards? If for different keyboards they various where to take the utility for viewing the codes generated by the keyboard! Best regards, Eugene Pustovoyt Sonork ID 100.10002:Yaumen Getting the font file name v_krishnan27-Dec-01 18:51 v_krishnan 27-Dec-01 18:51  Hi, Is there any way to get the name of the font file for a given font along with its attributes like bold, italic, etc.? Thanks, Krishnan Re: Getting the font file name Mike Nordell27-Dec-01 23:25 Mike Nordell 27-Dec-01 23:25  GetTextMetrics often gives you all you need to know about a font. Why would you want to know a fonts filename? /Mike Re: Getting the font file name v_krishnan28-Dec-01 19:14 v_krishnan 28-Dec-01 19:14  Mike Nordell wrote: GetTextMetrics often gives you all you need to know about a font. Why would you want to know a fonts filename? I have requirement to get the list of all fonts I am using in my application so that I can bundle them with my software. MACRO problem.... Christian Graus27-Dec-01 18:41 Christian Graus 27-Dec-01 18:41  I'm working on a project that will allow a trace window in release mode, by extending IOStream functionality. Rather than have people have to learn my new modifiers, etc., I am also writing macros to replace TRACE for different circumstances. I want to have a trace window per file, and a global one. I also want a variable watch window, so I can send a variable in such a way that instead of scrolling off in the trace window, it stays visible. My problem is I'd like to define a macro so I can do something like VARTRACE(myVariable); and have the macro pass both the variable and it's name to the stream. Is there a way I can pass the name of the variable given to the macro as an argument ? Thanks. Christian After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001 Sonork ID 100.10002:MeanManOzI live in Bob's HungOut now Re: MACRO problem.... PJ Arends27-Dec-01 21:29 PJ Arends 27-Dec-01 21:29  I may be totally off base here, but I think you are looking for the ## token pasting operator. --- It may be that your sole purpose in life is simply to serve as a warning to others.

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