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This function decrements a thread's suspend count. When the suspend count is decremented to zero, the execution of the thread is resumed.
DWORD ResumeThread( HANDLE hThread );
Parameters
- hThread
- Specifies a handle for the thread to be restarted.
Return Values
The thread's previous suspend count indicates success. 0xFFFFFFFF indicates failure. To get extended error information, call GetLastError.
Remarks
The ResumeThreadfunction checks the suspend count of the subject thread. If the suspend count is 0, the thread is not currently suspended. Otherwise, the subject thread's suspend count is decremented. If the resulting value is 0, then the execution of the subject thread is resumed.
If the return value is 0, the specified thread was not suspended. If the return value is 1, the specified thread was suspended but was restarted. If the return value is greater than 1, the specified thread is still suspended.
Note that while reporting debug events, all threads within the reporting process are frozen. Debuggers are expected to use the SuspendThreadand ResumeThreadfunctions to limit the set of threads that can execute within a process. By suspending all threads in a process except for the one reporting a debug event, it is possible to "single step" a single thread. The other threads are not released by a continue operation if they are suspended.
Requirements
Runs on Versions Defined in Include Link to Windows CE OS 1.0 and later Winbase.h Coredll.lib Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.
See Also