1>.\YX_GPS\port\c\yu_port_gui.c(79) : error C2039: 'Release' : is not a member of 'IDirectDrawSurface'
1> D:\Program Files\Windows CE Tools\wce500\STANDARDSDK_500\include\ARMV4I\ddraw.h(1172) : see declaration of 'IDirectDrawSurface'
1>.\YX_GPS\port\c\yu_port_gui.c(99) : error C2039: 'SetCooperativeLevel' : is not a member of 'IDirectDraw'
1> D:\Program Files\Windows CE Tools\wce500\STANDARDSDK_500\include\ARMV4I\ddraw.h(811) : see declaration of 'IDirectDraw'
1>.\YX_GPS\port\c\yu_port_gui.c(103) : error C2039: 'GetCaps' : is not a member of 'IDirectDraw'
1> D:\Program Files\Windows CE Tools\wce500\STANDARDSDK_500\include\ARMV4I\ddraw.h(811) : see declaration of 'IDirectDraw'
1>.\YX_GPS\port\c\yu_port_gui.c(122) : error C2039: 'CreateSurface' : is not a member of 'IDirectDraw'
1> D:\Program Files\Windows CE Tools\wce500\STANDARDSDK_500\include\ARMV4I\ddraw.h(811) : see declaration of 'IDirectDraw'
1>.\YX_GPS\port\c\yu_port_gui.c(129) : error C2039: 'EnumAttachedSurfaces' : is not a member of 'IDirectDrawSurface'
1> D:\Program Files\Windows CE Tools\wce500\STANDARDSDK_500\include\ARMV4I\ddraw.h(1172) : see declaration of 'IDirectDrawSurface'