h6. [[VFPSupport]] h6(. » [[VFPSupport SWI Calls|SWI Calls]] h6((. » VFPSupport_CheckContext h2. VFPSupport_CheckContext h5. (SWI &58EC0) |_<^{width:4em}. Entry | | |/5<^. R0 |Flags: | |Bit 0: User mode flag (0=user mode access not required, 1=user mode access required) | |Bit 1: Application space flag (0=not in application space, 1=in application space) | |Bits 30-31: Ignored | |Other bits reserved, should be zero | |<^. R1 |Number of doubleword registers required (1-32) | |_<^{width:4em}. Exit | | |<^. R0 |Required size of context save area | |\2. All other registers preserved | h4. Use This call allows programs to check if it is possible to create a context with a given set of parameters, and how large the context save area will be (if created manually). h4. Notes If it is not possible to create a context with the given features, an error will be returned. See [[VFPSupport_CreateContext]] for more details of the flags in R0. Note that bits 30-31 of R0 are ignored, to allow the same set of flags to be passed to VFPSupport_CreateContext. h4. See also * [[VFPSupport_CreateContext]]