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High-Level Language Application Programming Interface
4-41
25 Specifies that the requested keystrokes are not available
on the input queue.
31 Specifies that the keystroke queue overflowed and
keystrokes were lost.
Remarks
The GET KEY function behaves as a read command. When keystrokes are available, they
are read into the data string you provide with the GET KEY function. User keystrokes are
queued by HLLAPI. The GET KEY function dequeues these keystrokes and returns them to
the requester one at a time. The GET KEY function is affected by the NWAIT/LWAIT/TWAIT
session options. See session option 8 in SET SESSION PARAMETERS (9).
You can use the SEND KEY (3) function to pass both original keystrokes and any other
keystrokes that your HLLAPI application wants to send to the target presentation space.
Refer to the Keyboard Mnemonics table for a listing of supported keystroke values.
- Bull DPX/20 1
- About This Book 5
- Ordering Publications 6
- Contents 7
- HCON Capabilities 18
- National Language Support 19
- Machine Requirements 20
- Connection Requirements 21
- Programming Requirements 22
- Limitations 23
- Using Host Connection Program 25
- Display Sessions 27
- Session Profiles 28
- Xwindow 3270 Emulator (xhcon) 31
- Mouse Function 32
- XDesktop Startup 33
- Window Characteristics 34
- 3270 Emulator 37
- 3270 Keyboard 38
- Using Default 3270 Keyboards 50
- Keyboards 54
- Function PressFunctionPress 63
- PF12 F12 ATTN Ctrl-A 63
- CURSEL Ctrl-L 63
- HCON Utility Program Overview 64
- Utility Program Keys 67
- Utility Program Fields 68
- Message Field 69
- Heading Field 69
- 3270 Fields 71
- Displayable 3270 Attributes 72
- Key Definition Fields 76
- Changing Key Definitions 76
- Redefining Keyboard Values 77
- Changing the Key Map Fields 77
- HCON File Transfers 79
- Session Profile Prompt Screen 82
- Restart Menu 82
- CMS Menu 83
- TSO Menu 84
- File Transfer Message Window 87
- Toggle Fields 88
- Edit Fields 89
- HCON Host Logon Procedures 91
- Example AUTOLOG Script 94
- Using an HCON AUTOLOG Script 95
- Logon and Logoff Screens 97
- Logon and Logoff Fields 99
- HCON Commands 101
- Working with Session Profiles 102
- Working with HCON Sessions 102
- Managing HCON 103
- HCON Users 104
- Managing HCON Sessions 105
- Storing HCON Session Profiles 106
- HCON Display Emulation 107
- 3270 Data Stream Commands 108
- 3270 Data Stream Orders 110
- HCON Printer Emulation 121
- 3270 Printer Data Stream 122
- SCS Printer Data Stream 122
- SCS Structured Fields 123
- HCON Processes 125
- HCON File Transfer Process 128
- Prerequisite 130
- Bypassing the Password Prompt 131
- HCON Connections and Adapters 133
- HCON Attachments 135
- Unit Attachment 136
- 3172/8232 Attachment 137
- Channel Attachment 137
- SNA Standalone Attachment 138
- SNA Support 141
- Prerequisites 143
- Procedure 143
- HCON Display Session Pooling 144
- HIA Pooling 145
- SNA Node T2.1 Pooling 145
- HCON Screen Size Management 148
- Installing and Updating HCON 150
- Adapters Supported by HCON 151
- Configuring HCON 155
- HCON and terminfo Key Names 156
- Setting the Terminal Type 158
- Maintaining HCON 161
- Troubleshooting HCON 162
- 084B0000 Sense Code Received 164
- Host Data Rejected 165
- SNA Node T2.1 Sense Codes 166
- Configuring Hosts for HCON 168
- 3274/3174 Control Unit 169
- Token-Ring Attachment Example 177
- Reading the Error Message 178
- Error Message 179
- Programming Interface 201
- HLLAPI Components 203
- Uses of HLLAPI 204
- HLLAPI Services 204
- HLLAPI Connections 205
- HLLAPI Presentation Spaces 205
- Printer Sessions 205
- Running HLLAPI Programs 205
- HLLAPI Current Connection 205
- Ending HLLAPI Communication 206
- Programming with HLLAPI 207
- Compiling and Linking 208
- Source Code Preparation 208
- HLLAPI Functional Call Syntax 208
- Prerequisite Calls 211
- Supplied Parameters 211
- Returned Parameters 211
- COPY FIELD TO STRING (34) 215
- DBCS Remarks 216
- COPY OIA (13) 217
- COPY PRESENTATION SPACE (5) 223
- Related Information 229
- COPY STRING TO FIELD (33) 230
- Additional DBCS Remarks 231
- FIND FIELD LENGTH (32) 235
- FIND FIELD POSITION (31) 237
- GET KEY (51) 239
- PAUSE (18) 242
- POST INTERCEPT STATUS (52) 244
- QUERY CURSOR LOCATION (7) 246
- QUERY FIELD ATTRIBUTE (14) 247
- QUERY HOST UPDATE (24) 249
- QUERY SESSIONS (10) 250
- QUERY SESSION STATUS (22) 252
- QUERY SYSTEM (20) 254
- RECEIVE FILE (91) 255
- RELEASE (12) 257
- RESERVE (11) 258
- RESET SYSTEM (21) 259
- SEARCH FIELD (30) 260
- SEND FILE (90) 264
- SEND KEY (3) 267
- Keyboard Mnemonics 268
- SET CURSOR (40) 272
- SET SESSION PARAMETERS (9) 273
- Session Options 274
- START HOST NOTIFICATION (23) 279
- Returned Parmeters 281
- STOP HOST NOTIFICATION (25) 283
- STOP KEYSTROKE INTERCEPT (53) 284
- WAIT (4) 285
- Sample C HLLAPI Program 287
- Programming HCON 299
- Security 300
- HCON Programming Examples 301
- Compiling Example Programs 302
- HCON Programming References 309
- Return Codes Overview 311
- File Transfer Error Codes 313
- HLLAPI Return Codes 315
- NOM / NAME : Date : 329
- SOCIETE / COMPANY : 329
- ADRESSE / ADDRESS : 329
- 86 A2 74WG 02 332
- ORDER REFERENCE 332
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