DWORD GlobalSize(hMem)
This function retrieves the current size (in bytes) of the global memory block specified by the hMem parameter.
| Parameter | Type/Description |
| hMem | HANDLE Identifies the global memory block. |
The return value specifies the actual size (in bytes) of the specified memory block. It is zero if the given handle is not valid or if the object has been discarded.
The actual size of a memory block is sometimes larger than the size requested when the memory was allocated.
An application should call the GlobalFlags function prior to calling the GlobalSize function in order to verify that the specified memory block was not discarded. If the memory block were discarded, the return value for GlobalSize would be meaningless.