#!F-adobe-helvetica-medium-r-normal--18*
#!N 
#!N  #!Rdxcrih DXCheckRIH #!N #!N Function #!N #!N Checks registered 
input handlers. #!N #!N Syntax #!N  #!F-adobe-times-bold-r-normal--18*   #include <dx/dx.h> int DXCheckRIH(int 
block); #!EF #!N #!N Functional Details #!N #!N This routine must 
be called periodically in a stand-alone program if the  #!F-adobe-times-bold-r-normal--18*   DXRegisterInputHandler 
#!EF routine is used to define an input handler. (The executive 
provides this function automatically for built-in Data Explorer routines.) #!N #!N 
 #!F-adobe-times-bold-r-normal--18*   DXCheckRIH #!EF determines whether any input handlers need to be 
called and, if so, calls them before returning. The valid arguments 
for  #!F-adobe-times-bold-r-normal--18*   block #!EF are: #!N #!I0 #!N  #!F-adobe-times-medium-r-normal--18*   #!N #!N 
#!I30 #!N 0 = Check whether any events need handling. If 
not, return. Otherwise, handle the event(s) and return. #!N #!I30 #!N 
1 = Do not return until an event that requires handling 
occurs. #!N #!I0 #!N #!EF #!N #!N #!N If the Display 
module is part of your stand-alone program, this routine must be 
called, since Display uses an input handler to deal with external 
events (e.g., repainting window contents after they have been obscured). #!N 
#!N If the SuperviseState module (  #!Lsupstat,dxall958 h SuperviseState  #!EL  in IBM Visualization Data 
Explorer User's Reference) is being used in conjunction with Display to 
implement direct interaction,  #!F-adobe-times-bold-r-normal--18*   DXCheckRIH #!EF must not be called between 
SuperviseState and Display. This will ensure that SuperviseState passes up-to-date state 
information into Display. #!N #!N Return Value #!N #!N Returns 1 
if an event required handling; otherwise return 0. #!N #!N See 
Also #!N #!N  #!F-adobe-times-bold-r-normal--18*    #!Ldxregih,dxall1354 h DXRegisterInputHandler  #!EL  #!EF #!N #!N #!N  #!F-adobe-times-medium-i-normal--18*   Next 
Topic #!EF #!N #!N  #!Ldxcb,dxall1180 h DXClipBox  #!EL  #!N  #!F-adobe-times-medium-i-normal--18*   #!N 
