Retrieve the system error message for the last-error code. WriteConsole(hStdout, msgBuf, (DWORD)cchStringSize, &dwChars, NULL) StringCchLength(msgBuf, BUF_SIZE, &cchStringSize) Close all thread handles and free memory allocations. WaitForMultipleObjects(MAX_THREADS, hThreadArray, TRUE, INFINITE) Wait until all threads have terminated. This will automatically clean up threads and memory. If CreateThread fails, terminate execution. &dwThreadIdArray) // returns the thread identifier PDataArray, // argument to thread function MyThreadFunction, // thread function name Create the thread to begin execution on its own. that can be passed using a single void pointer (LPVOID). This is passed by void pointer so it can be any data type Sample custom data structure for threads to use.
#include ĭWORD WINAPI MyThreadFunction( LPVOID lpParam ) However, the handle will be unavailable for use in subsequent function calls. Note that if you were to close the handle to a worker thread before it terminated, this does not terminate the worker thread. The calling thread blocks while it is waiting to continue processing, a calling thread would use WaitForSingleObject and wait for each worker thread to signal its wait object. The calling thread uses the WaitForMultipleObjects function to persist until all worker threads have terminated. The following is a simple example that demonstrates how to create a new thread that executes the locally defined function, MyThreadFunction. A process can have multiple threads simultaneously executing the same function.
This function takes a single parameter and returns a DWORD value. Typically, the starting address is the name of a function defined in the program code (for more information, see ThreadProc). The creating thread must specify the starting address of the code that the new thread is to execute. The CreateThread function creates a new thread for a process.
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