SysShmOpen

This function of type DWORD opens a Shared Memory. It returns a handle for the ShM, which can be used as a pointer. The handle is required as input parameter for the other library functions.

Variable	Data Type	Description
stName	STRING	Name of the Shared Memory, can be set as desired dwPhysicalAddress DWORD
dwPhysicalAddress	DWORD	Set here one of the following: - the desired physical address of the ShM; must be valid! - 0, if the location of the ShM area can be arbitrary pdwSize DWORD
pdwSize	DWORD	Address of size of the area for the ShM - If the ShM is already existing, the actual size will be returned. - If the ShM does not yet exist, it will be created according to the given size. If you enter “0” here, the function will fail. Thus the function also can be used to check whether the ShM already has been created.