search for: dokeybd

doKeybd() gets called in CHelpKeyIn() and NHelpKeyIn() in library/grDevices/src/devWindows.c, where the call is encapsulated in an 'if (dd->gettingEvent)' block. So the only times this code ever calls doKeybd() is when gettingEvent is in fact set. Further, it's called in two locations in X1...

Hey all. As in general it's a bad idea to allow an event handler to generate an event, and as comments in the code seem to suggest this isn't the intention either, I was wondering about recursion in getGraphicsEvent(). In main/gevents.c, both doMouseEvent() and doKeybd() have the following line; dd->gettingEvent = FALSE; /* avoid recursive calls */ And they reset it to TRUE before returning. The effective result of this is that the event handlers on the R side are allowed to call getGraphicsEvent(), and recurse until they eventually would run out of stac...

...> Hey all. > > As in general it's a bad idea to allow an event handler to generate an > event, and as comments in the code seem to suggest this isn't the > intention either, I was wondering about recursion in getGraphicsEvent(). > In main/gevents.c, both doMouseEvent() and doKeybd() have the following > line; > > dd->gettingEvent = FALSE; /* avoid recursive calls */ > > And they reset it to TRUE before returning. The effective result of this > is that the event handlers on the R side are allowed to call > getGraphicsEvent(), and recurse until they...

...ata on to a function that modifies its arguments. o asLogical, asInteger, asReal and asComplex now accept STRSXP and CHARSXP arguments, and asChar accepts CHARSXP. o New R_GE_str2col() exported via R_ext/GraphicsEngine.h for external device developers. o doKeybd and doMouseevent are now exported in GraphicsDevice.h. o R_alloc now has first argument of type 'size_t' to support 64-bit platforms (e.g. Win64) with a 32-bit 'long' type. o The type of the last two arguments of getMatrixDimnames (non-API but mentioned...

...ata on to a function that modifies its arguments. o asLogical, asInteger, asReal and asComplex now accept STRSXP and CHARSXP arguments, and asChar accepts CHARSXP. o New R_GE_str2col() exported via R_ext/GraphicsEngine.h for external device developers. o doKeybd and doMouseevent are now exported in GraphicsDevice.h. o R_alloc now has first argument of type 'size_t' to support 64-bit platforms (e.g. Win64) with a 32-bit 'long' type. o The type of the last two arguments of getMatrixDimnames (non-API but mentioned...