Windows-Supported API Functions

Indicates whether the try block of a try-finally statement terminated normally. The function can be called only from within the finally block of a try-finally statement.

Creates a new directory. If the underlying file system supports security on files and directories, the function applies a specified security descriptor to the new directory.

Creates or opens a file. It then returns a handle that can be used to access the object.

Creates a thread to execute within the address space of the calling process.

Releases all resources used by an unowned critical-section object.

Deletes an existing file.

An optional method of entry into a dynamic-link library (DLL).

Waits for ownership of the specified critical-section object. The function returns when the calling thread is granted ownership.

Ends a process and all its threads.

Ends a thread.

Converts a file time to a local file time.

Decrements the reference count of the loaded dynamic-link library (DLL) module.

Returns a pseudo handle for the current process.

Returns the process identifier of the calling process.

Returns the system-assigned number of the current processor on which the caller is running.

Returns a pseudo handle for the current thread.

Returns the thread identifier of the calling thread.

Retrieves the termination status of the specified thread.

Retrieves a handle for each module in a specified process.

Retrieves a module handle for the specified module. The module must have been loaded by the calling process.

Retrieves a module handle for the specified module in a specified process.

Returns the calling thread's last-error code value.

Returns the address of the specified exported dynamic-link library (DLL) function.

Retrieves the process affinity mask for the specified process and the system affinity mask for Real-Time operating system.

Obtains a handle to the heap of the calling process. This handle can then be used in calls to HeapAlloc, HeapReAlloc, HeapFree, and HeapSize.

Allocates a block of memory from a heap. The allocated memory is not movable.

Creates a heap object that can be used by the calling process.

Destroys the specified heap object.

Frees a memory block allocated from a heap by HeapAlloc or HeapReAlloc.

Reallocates a block of memory from a heap. This function enables you to resize a memory block and change other memory block properties.

Returns the size, in bytes, of a memory block allocated from a heap by HeapAlloc or HeapReAlloc.

Initialize a Critical Section object.

Performs an atomic addition operation on the specified LONG values.

Performs an atomic addition operation on the specified LONGLONG values.

Performs an atomic AND operation on the specified LONG values.

Performs an atomic AND operation on the specified char values.

Performs an atomic AND operation on the specified SHORT values.

Performs an atomic AND operation on the specified LONGLONG values.

Tests the specified bit of the specified LONG value and sets it to 0. The operation is atomic.

Tests the specified bit of the specified LONG value and sets it to 1. The operation is atomic.

Performs an atomic compare-and-exchange operation on the specified values. The function compares the specified 64-bit values and exchanges with the specified 128-bit value based on the outcome of the comparison. The operation is performed with release memory ordering semantics.

Performs an atomic compare-and-exchange operation on the specified values.

Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 16-bit values and exchanges with another 16-bit value based on the outcome of the comparison.

Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 64-bit values and exchanges with another 64-bit value based on the outcome of the comparison.

Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified 128-bit values and exchanges with another 128-bit value based on the outcome of the comparison.

Performs an atomic compare-and-exchange operation on the specified values. The function compares two specified pointer values and exchanges with another pointer value based on the outcome of the comparison.

Decrements (decreases by one) the value of the specified 32-bit variable as an atomic operation.

Decrements (decreases by one) the value of the specified 16-bit variable as an atomic operation.

Decrements (decreases by one) the value of the specified 64-bit variable as an atomic operation.

Sets a 32-bit variable to the specified value as an atomic operation.

Sets an 8-bit variable to the specified value as an atomic operation.

Sets a 16-bit variable to the specified value as an atomic operation.

Sets a 64-bit variable to the specified value as an atomic operation.

Atomically exchanges a pair of addresses.

Performs an atomic subtraction of two values.

Performs an atomic addition of two 32-bit values.

Performs an atomic addition of two 64-bit values.

Increments (increases by one) the value of the specified 32-bit variable as an atomic operation.

Increments (increases by one) the value of the specified 16-bit variable as an atomic operation.

Increments (increases by one) the value of the specified 64-bit variable as an atomic operation.

Performs an atomic OR operation on the specified LONG values. The function prevents more than one thread from using the same variable simultaneously.

Performs an atomic OR operation on the specified char values. The function prevents more than one thread from using the same variable simultaneously.

Performs an atomic OR operation on the specified SHORT values. The function prevents more than one thread from using the same variable simultaneously.

Performs an atomic OR operation on the specified LONGLONG values. The function prevents more than one thread from using the same variable simultaneously.

Performs an atomic XOR operation on the specified LONG values. The function prevents more than one thread from using the same variable simultaneously.

Performs an atomic XOR operation on the specified char values. The function prevents more than one thread from using the same variable simultaneously.

Performs an atomic XOR operation on the specified SHORT values. The function prevents more than one thread from using the same variable simultaneously.

Performs an atomic XOR operation on the specified LONGLONG values. The function prevents more than one thread from using the same variable simultaneously.

Releases ownership of the specified critical-section object.

Maps the specified executable module into the address space of the calling process.

If the application has a debugger, the debugger displays the string. If the application has no debugger, OutputDebugString does nothing.

Retrieves the current value of the high-resolution performance counter.

Retrieves the frequency of the high-resolution performance counter. The frequency cannot change while the system is running.

Reads data from a file, starting at the position indicated by the file pointer.

A handle to the specified registry key.

Creates the specified registry key.

Creates the specified registry key.

Deletes a subkey and its values. See the RegDeleteKeyEx function for more expanded options.

Deletes a subkey and its values from the registry. See RegDeleteKey for a basic version of this function.

Removes the specified value from the specified registry key.

Enumerates the values for the specified open registry key.

Opens the specified registry key.

Opens the specified registry key.

Retrieves the type and data associated with the value of a specified registry key.

Sets the data for the specified value in the specified registry key.

Deletes an existing empty directory.

Subtracts one from a thread's suspend count.

Function moves the end-of-file (EOF) position for the specified file to the current position of the file pointer.

Moves the file pointer of an open file.

Sets the last-error code for the calling thread.

Sets a processor affinity mask for the threads of the specified process.

Sets a processor affinity mask for the specified thread.

Sets a preferred processor for a thread.

Suspends the current thread for the specified time.

Suspends the current thread until the specified condition is met.

Suspends the specified thread.

Terminates a thread.

Allocates a thread local storage (TLS) index.

Releases a thread local storage (TLS) index, making it available for reuse.

Retrieves the value in the calling thread's thread local storage (TLS) slot for a specified TLS index.

Stores a value in the calling thread's thread local storage (TLS) slot for a specified TLS index.