Skip to main content

Featured

Build docker image from multiple build contexts

Build docker image from multiple build contexts Building a docker image requires specifying a source of truth to include in the image from a local directory or a remote git repository. In the previous version, the docker BuildKit allows users to specify the build context from a single source of truth only. However, the engineers may need to have the context from different locations based on the type of files. For instance, icons, images or other resources that are not included in the same package, including the resource from other docker images. Fortunately, the Docker Buildx toolkit supports multiple build context flag for Docker 1.4. Let's learn how to use this new feature. The following list is a shortcut for jumping into a specific topic handy. What version of Docker is this tutorial targeting? How to specify the version of Dockerfile frontend? Ho
Post a Comment
Read more

Find Window's Handle through PID 

```cpp
typedef _ProcessHwnd

{

  DWORD ProcessID;
  HWND hwndProcess;

} PROCESSHWND, * PPROCESSHWND;


DWORD GetHWNDForProcess(DWORD ProcessID, PHWND ProcessHWND);
BOOL CALLBACK FindProcessHWNDThruEnum(HWND hwnd, LPARAM lParam);

// example function
// returns 0 if success, results of GetLast Error if not
// ProcessID is the process you are interested in
// ProcessHWND will have the process' associated window handle.
// Or NULL, if the process doesn't have a window
//
// Usage: GetHWNDForProcess(ProcId, &ProcHWND);
//

DWORD GetHWNDForProcess(DWORD ProcessID, PHWND ProcessHWND)
{
  DWORD ErrValue = 0;
  BOOL fEnumWindows = FALSE;
  PROCESSHWND prochwndFind;

// Initialize the structure
  memset(&prochwndFind, 0, sizeof(prochwndFind));
  prochwndFind.ProcessID = ProcessID;
  fEnumWindows = EnumWindows(FindProcessHWNDThruEnum, (LPARAM) &prochwndFind);

// Make sure EnumWindows succeeded
  if(fEnumWindows){
    *ProcessHWND = prochwndFind.hwndProcess;
  }else{
   ErrValue = GetLastError();
  }
  return ErrValue;
}

// The EnumWindowsProc callback
BOOL CALLBACK FindProcessHWNDThruEnum(HWND hwnd, LPARAM lParam)
{
  PPROCESSHWND prochwndFind;
  DWORD ThisProcessID = 0;
  DWORD ThisThreadID = 0; // For completeness, not needed

  prochwndFind = (PPROCESSHWND) lParam;
  ThisThreadID = GetWindowThreadProcessId(hwnd, &ThisProcessID);

  if(ThisProcessID == prochwndFind.ProcessID)
  {
    prochwndFind.hwndProcess = hwnd);
    return FALSE;
  }else{
    return TRUE;
  }
}
```

Comments

Post a Comment

Popular Posts