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Search found 746 results on 30 pages for 'winapi'.

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• Using the Proxy pattern with C++ iterators

  - by Billy ONeal

  Hello everyone :) I've got a moderately complex iterator written which wraps the FindXFile apis on Win32. (See previous question) In order to avoid the overhead of constructing an object that essentially duplicates the work of the WIN32_FIND_DATAW structure, I have a proxy object which simply acts as a sort of const reference to the single…

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• how to call different Win API based on Windows version?

  - by liuliu

  The specific problem is, the support of condition variable on Windows begins from Vista, for early version of Windows (Windows XP), I have a emulated condition variable code sort of solved the problem. However, I'd like to have the ability to call native condition variable API when the system supported and fallback to my version only on XP…

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• C++ Draw things on riched32.dll

  - by genesys

  Hi! I'm using riched32.dll to display and edit rich text. now I would like to draw some custom markings to the text, like for example the red underline in office word displaying wrong spelling. or text marking boxes with rounded corners or something like this. Of course those markings should scroll properly with the text. How can I do…

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• How to genrate a monochrome bit mask for a 32bit bitmap

  - by Mordachai

  Under Win32, it is a common technique to generate a monochrome bitmask from a bitmap for transparency use by doing the following: SetBkColor(hdcSource, clrTransparency); VERIFY(BitBlt(hdcMask, 0, 0, bm.bmWidth, bm.bmHeight, hdcSource, 0, 0, SRCCOPY)); This assumes that hdcSource is a memory DC holding the source image, and hdcMask is…

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• Porting - Shared Memory x32 & x64 processes

  - by dpb

  A 32 bit host Windows application setups shared memory (using memory mapped file / CreateFileMapping() API), and then other 32 bit client processes use this shared memory to communicate with each other. I am planning to port the host application to 64 bit platform and once it is ready, I intend that both 32 bit and 64 bit client…

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• How can I programmatically stop a notebook battery from charging

  - by Marcel

  There is some easily available information on finding the status of a battery, or weather it's charging or not. (GetSystemPowerStatus API or System.Windows.Forms.SystemInformation.PowerStatus). I want to be able to stop a battery from charging based on some criteria, e.g. battery power 20%. Is there an API to do this?

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• Adding an host programmatically (name resolution under Windows)

  - by Tanelorn

  I would like to programmatically add to Windows a name / IP association so that this name can be resolved locally. This does not have to be persisted between reboots. The only way I now is to add an entry to the "hosts" file, but this feels hacky especially since I would like to automate this. Is there any way to do this using…

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• How to get smartcard reader name in Windows 7 using C# or C/C++?

  - by AndrejaKo

  Hi! I'm trying to make a C# program which will use a C .dll (unfortunately, the .dll doesn't have good documentation) to access a smart card. One of the functions of the .dll uses name of the reader as argument. My problem is that I don't know how to get the name. After looking for answers I found something similar to what I…

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• Have to find if some window name has some string on it with python

  - by Shady

  First of all, I get the name of the current window win32gui.GetWindowText(win32gui.GetForegroundWindow()) k, no problem with that... But now, how can I make an if with the result for having an specific string on it... For example, the result gave me C:/Python26/ How can I make an True of False for the result…

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• How to abort shutdown in Windows (XP|Vista) programatically?

  - by Piskvor

  I want to be able to detect and abort OS shutdown from my application, preferably by using the Windows API. I know that it is possible to do this manually using the command shutdown -a In the worst case, I could ShellExecute this, but I was wondering if there was a better way. Also, how do I find out…

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• How to build a C++ Dll wrapper that catches all exceptions?

  - by bart de vries

  Like the title says, we’re looking for a way to catch all exceptions from a piece of C++ code, and wrap this in a dll. This way we can shield of the application that uses this dll, from any errors occurring in this dll. However, this does not seem possible with C++ under Windows. Example: void…

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• Applications result affected by another running application.

  - by Jamie Keeling

  This is a follow on from my previous question although this is about something else. I've been having a problem where for some reason my message that I pass from one process to another only displays the first letter, in this case "M". My application is based on a MSDN sample so to make sure I…

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• Why does this crash?

  - by Adam Driscoll

  I've been banging my head...I can't pretend to be a C++ guy... TCHAR * pszUserName = userName.GetBuffer(); SID sid; SecureZeroMemory(&sid, sizeof(sid)); SID_NAME_USE sidNameUse; DWORD cbSid = sizeof(sid); pLog->Log(_T("Getting the SID for user [%s]"), 1, userName); if…

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• How can I make a child window topmost?

  - by Colen

  Hi, I have a parent form, with some child windows (not forms - just windows, for example label controls) inside it. Under certain circumstances, I want one of those child windows to be drawn "above" the others, to display a message over the entire main form. I've tried setting…

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• Make multiple monitors go to sleep with Windows API?

  - by LithMaster

  How exactly would I make both of my monitors go to sleep, I want to write an application myself because I'd like to add certain functionality, and so far I can't find anything on MSDN relating to making your display go to sleep.

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• code optimization; switch versus if's

  - by KaiserJohaan

  Hello, I have a question about whether to use 'case' or 'ifs' in a function that gets called quite alot. Here's the following as it is now, in 'ifs'; the code is self-explanatory: int identifyMsg(char* textbuff) { if (!strcmp(textbuff,"text")) { return 1; } if…

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• Win32 api call via C# fails!

  - by user434186

  Hi. I have a C++ function exported as api like this: #define WIN322_API __declspec(dllexport) WIN322_API char* Test(LPSTR str); WIN322_API char* Test(LPSTR str) { return "hello"; } the function is exported as API correctly by the .DEF file, cause i can see it in…

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• Send Click Message to another application process

  - by Nazar

  Hi Guys I have a scenario, i need to send click events to an independent application. I started that application with the following code. private Process app; app = new Process(); app.StartInfo.FileName = app_path; app.StartInfo.WorkingDirectory = dir_path;…

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• gethostbyname replacement for IPv6 addresses

  - by rursw1

  Hi, I have a program that uses gethostbyname (in Windows) in order to convert IP address to hostname. But, it works only for IPv4... What is the correct replacement for IPv6? Thanks.

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• Java Speech recognition api

  - by jaymin

  HI, i am currently developing an android application where i am required to implement speech recognition...could u suggest a link where i could find a java speech recognition API...? Thanks

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• Google Chrome selected text

  - by Gaby

  I am trying to get selected text from browsers(ie,opera, firefox..) using my C# application. I tried SendKeys.Send("^c") then reading the selected value from clipboard this method works fine with ie and Firefox.., but it doesn't work with Google Chrome. How…

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• How I can get information about the scrollbars of an Webbrowser control instance or the IE Webrowser?

  - by Salvador

  I need to get information about the scrollbars (position, size, visibility) of a Webbrowser control of an external application, I tried using the GetScrollBarInfo function from my previous question, but the function always return false, I checked this…

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• Making an owner-draw button transparent against its arbitrary background in WINCE

  - by EndsOfInvention

  Hi I am trying to place an owner-draw button transparently onto a background. I have no trouble doing this when the background is a solid colour but if the background is an image I cannot seem to get the correct HDC (handle to device context) to…

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• Deallocation doesn't free mem. in Windows/C++ Application

  - by Paul Baumer

  Hi, My Windows/C++ application allocates ~1Gb of data in memory with the new operator and processes this data. The data is deleted after processing. I noticed that if I run the processing again without exiting the application, the second call…

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• Where should I catch WM_HIBERNATE and WM_CLOSE in Windows Mobile/WinCE?

  - by afriza

  I have read about Windows Mobile's X button's behaviour, WM_HIBERNATE, and WM_CLOSE on Low Memory Situation. MSDN on WM_HIBERNATE: This message is sent to an application when system resources are running low. An application should attempt…

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