A Fully Integrated Print Action

The print action is usually defined in a configuration file, app_root/dt/appconfig/types/<language>/name.dt.

If your print action starts a program that dereferences the four environment variables indicated in "Desktop Printing Environment Variables", then your data type is fully integrated. The print action must be written to be specific for the application's data type and should accept only a single file.

For example, the following print action is specific for a data type named ThisAppData:

ACTION Print 
{
 	ARG_TYPE			ThisAppData
 	EXEC_STRING		print_command -file %(file)Arg_1% 
}

If your application handles the ToolTalk Media message set Print request, then your print action could send a variant of it with the following actions.

ACTION Print 
{
 	ARG_TYPE				ThisAppData
 	ARG_CLASS			FILE
 	ARG_COUNT			1
 	TYPE					TT_MSG
 	TT_CLASS				TT_REQUEST
 	TT_SCOPE				TT_SESSION
   TT_OPERATION		Print
 	TT_FILE				%Arg_1%
 	TT_ARG0_				MODE	TT_IN
 	TT_ARG0_				VTYPE	%Arg_1%
 	TT_ARG1_				MODE	TT_IN
 	TT_ARG1_				VTYPE	LPDEST
 	TT_ARG1_VALUE		$LPDEST
 	TT_ARG2_MODE		 TT_IN
 	TT_ARG2_VTYPE		 DTPRINTUSERFILENAME
 	TT_ARG2_VALUE		 $DTPRINTUSERFILENAME
 	TT_ARG3_MODE		 TT_IN
 	TT_ARG3_VTYPE		 DTPRINTSILENT
  TT_ARG3_VALUE		 $DTPRINTSILENT
 	TT_ARG4_MODE		 TT_IN 
  TT_ARG4_VTYPE		 DTPRINTFILEREMOVE
 	TT_ARG4_VALUE		 $DTPRINTFILEREMOVE 
} 
ACTION Print 
{
 	ARG_TYPE					    	ThisAppData
 	ARG_CLASS						   BUFFER
 	ARG_COUNT			   			1
 	TYPE				         TT_MSG
 	TT_CLASS				     TT_REQUEST
 	TT_SCOPE				     TT_SESSION
 	TT_OPERATION					 Print
 	TT_ARG0_MODE					TT_IN
 	TT_ARG0_VTYPE				 %Arg_1%
 	TT_ARG0_VALUE				 %Arg_1%
 	TT_ARG1_MODE					TT_IN
 	TT_ARG1_VTYPE				 LPDEST
 	TT_ARG1_VALUE					$LPDEST
 	TT_ARG2_MODE					TT_IN
 	TT_ARG2_VTYPE					DTPRINTUSERFILENAME
 	TT_ARG2_VALUE					$DTPRINTUSERFILENAME
 	TT_ARG3_MODE					TT_IN
 	TT_ARG3_VTYPE					DTPRINTSILENT
 	TT_ARG3_VALUE					$DTPRINTSILENT
 	TT_ARG4_MODE					TT_IN
 	TT_ARG4_VTYPE					DTPRINTFILEREMOVE
 	TT_ARG4_VALUE					false 
}

If any of the four environment variables are not set, the corresponding message argument will be null. When the message argument is null, refer to "Desktop Printing Environment Variables" for the default interpretation.