1 | /* -------------------------------- pktdef.h -------------------------------- */
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2 | /* Combined 16 & 32-bit version. */
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3 |
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4 | /*------------------------------------------------------------------------------
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5 | The text and information contained in this file may be freely used,
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6 | copied, or distributed without compensation or licensing restrictions.
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7 |
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8 | This file is copyright 1991-1998 by LCS/Telegraphics.
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9 | ------------------------------------------------------------------------------*/
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10 | /*------------------------------------------------------------------------------
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11 |
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12 | How to use pktdef.h:
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13 |
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14 | 1. Include wintab.h
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15 | 2. if using just one packet format:
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16 | a. Define PACKETDATA and PACKETMODE as or'ed combinations of WTPKT bits
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17 | (use the PK_* identifiers).
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18 | b. Include pktdef.h.
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19 | c. The generated structure typedef will be called PACKET. Use PACKETDATA
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20 | and PACKETMODE to fill in the LOGCONTEXT structure.
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21 | 3. If using multiple packet formats, for each one:
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22 | a. Define PACKETNAME. Its text value will be a prefix for this packet's
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23 | parameters and names.
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24 | b. Define <PACKETNAME>PACKETDATA and <PACKETNAME>PACKETMODE similar to
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25 | 2.a. above.
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26 | c. Include pktdef.h.
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27 | d. The generated structure typedef will be called
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28 | <PACKETNAME>PACKET. Compare with 2.c. above and example #2 below.
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29 | 4. If using extension packet data, do the following additional steps
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30 | for each extension:
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31 | a. Before including pktdef.h, define <PACKETNAME>PACKET<EXTENSION>
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32 | as either PKEXT_ABSOLUTE or PKEXT_RELATIVE.
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33 | b. The generated structure typedef will contain a field for the
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34 | extension data.
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35 | c. Scan the WTI_EXTENSION categories to find the extension's
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36 | packet mask bit.
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37 | d. OR the packet mask bit with <PACKETNAME>PACKETDATA and use the
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38 | result in the lcPktData field of the LOGCONTEXT structure.
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39 | e. If <PACKETNAME>PACKET<EXTENSION> was PKEXT_RELATIVE, OR the
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40 | packet mask bit with <PACKETNAME>PACKETMODE and use the result
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41 | in the lcPktMode field of the LOGCONTEXT structure.
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42 |
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43 |
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44 | Example #1. -- single packet format
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45 |
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46 | #include <wintab.h>
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47 | #define PACKETDATA PK_X | PK_Y | PK_BUTTONS /@ x, y, buttons @/
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48 | #define PACKETMODE PK_BUTTONS /@ buttons relative mode @/
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49 | #include <pktdef.h>
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50 | ...
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51 | lc.lcPktData = PACKETDATA;
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52 | lc.lcPktMode = PACKETMODE;
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53 |
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54 | Example #2. -- multiple formats
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55 |
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56 | #include <wintab.h>
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57 | #define PACKETNAME MOE
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58 | #define MOEPACKETDATA PK_X | PK_Y | PK_BUTTONS /@ x, y, buttons @/
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59 | #define MOEPACKETMODE PK_BUTTONS /@ buttons relative mode @/
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60 | #include <pktdef.h>
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61 | #define PACKETNAME LARRY
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62 | #define LARRYPACKETDATA PK_Y | PK_Z | PK_BUTTONS /@ y, z, buttons @/
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63 | #define LARRYPACKETMODE PK_BUTTONS /@ buttons relative mode @/
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64 | #include <pktdef.h>
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65 | #define PACKETNAME CURLY
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66 | #define CURLYPACKETDATA PK_X | PK_Z | PK_BUTTONS /@ x, z, buttons @/
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67 | #define CURLYPACKETMODE PK_BUTTONS /@ buttons relative mode @/
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68 | #include <pktdef.h>
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69 | ...
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70 | lcMOE.lcPktData = MOEPACKETDATA;
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71 | lcMOE.lcPktMode = MOEPACKETMODE;
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72 | ...
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73 | lcLARRY.lcPktData = LARRYPACKETDATA;
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74 | lcLARRY.lcPktMode = LARRYPACKETMODE;
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75 | ...
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76 | lcCURLY.lcPktData = CURLYPACKETDATA;
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77 | lcCURLY.lcPktMode = CURLYPACKETMODE;
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78 |
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79 | Example #3. -- extension packet data "XFOO".
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80 |
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81 | #include <wintab.h>
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82 | #define PACKETDATA PK_X | PK_Y | PK_BUTTONS /@ x, y, buttons @/
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83 | #define PACKETMODE PK_BUTTONS /@ buttons relative mode @/
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84 | #define PACKETXFOO PKEXT_ABSOLUTE /@ XFOO absolute mode @/
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85 | #include <pktdef.h>
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86 | ...
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87 | UINT ScanExts(UINT wTag)
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88 | {
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89 | UINT i;
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90 | UINT wScanTag;
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91 |
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92 | /@ scan for wTag's info category. @/
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93 | for (i = 0; WTInfo(WTI_EXTENSIONS + i, EXT_TAG, &wScanTag); i++) {
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94 | if (wTag == wScanTag) {
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95 | /@ return category offset from WTI_EXTENSIONS. @/
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96 | return i;
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97 | }
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98 | }
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99 | /@ return error code. @/
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100 | return 0xFFFF;
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101 | }
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102 | ...
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103 | lc.lcPktData = PACKETDATA;
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104 | lc.lcPktMode = PACKETMODE;
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105 | #ifdef PACKETXFOO
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106 | categoryXFOO = ScanExts(WTX_XFOO);
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107 | WTInfo(WTI_EXTENSIONS + categoryXFOO, EXT_MASK, &maskXFOO);
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108 | lc.lcPktData |= maskXFOO;
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109 | #if PACKETXFOO == PKEXT_RELATIVE
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110 | lc.lcPktMode |= maskXFOO;
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111 | #endif
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112 | #endif
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113 | WTOpen(hWnd, &lc, TRUE);
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114 |
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115 |
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116 | ------------------------------------------------------------------------------*/
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117 | #ifdef __cplusplus
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118 | extern "C" {
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119 | #endif /* __cplusplus */
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120 |
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121 | #ifndef PACKETNAME
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122 | /* if no packet name prefix */
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123 | #define __PFX(x) x
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124 | #define __IFX(x,y) x ## y
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125 | #else
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126 | /* add prefixes and infixes to packet format names */
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127 | #define __PFX(x) __PFX2(PACKETNAME,x)
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128 | #define __PFX2(p,x) __PFX3(p,x)
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129 | #define __PFX3(p,x) p ## x
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130 | #define __IFX(x,y) __IFX2(x,PACKETNAME,y)
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131 | #define __IFX2(x,i,y) __IFX3(x,i,y)
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132 | #define __IFX3(x,i,y) x ## i ## y
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133 | #endif
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134 |
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135 | #define __SFX2(x,s) __SFX3(x,s)
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136 | #define __SFX3(x,s) x ## s
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137 |
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138 | #define __TAG __IFX(tag,PACKET)
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139 | #define __TYPES __PFX(PACKET), * __IFX(P,PACKET), NEAR * __IFX(NP,PACKET), \
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140 | FAR * __IFX(LP,PACKET)
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141 |
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142 | #define __DATA (__PFX(PACKETDATA))
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143 | #define __MODE (__PFX(PACKETMODE))
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144 | #define __EXT(x) __SFX2(__PFX(PACKET),x)
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145 |
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146 |
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147 | typedef struct __TAG {
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148 | #if (__DATA & PK_CONTEXT)
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149 | HCTX pkContext;
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150 | #endif
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151 | #if (__DATA & PK_STATUS)
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152 | UINT pkStatus;
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153 | #endif
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154 | #if (__DATA & PK_TIME)
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155 | DWORD pkTime;
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156 | #endif
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157 | #if (__DATA & PK_CHANGED)
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158 | WTPKT pkChanged;
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159 | #endif
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160 | #if (__DATA & PK_SERIAL_NUMBER)
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161 | UINT pkSerialNumber;
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162 | #endif
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163 | #if (__DATA & PK_CURSOR)
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164 | UINT pkCursor;
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165 | #endif
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166 | #if (__DATA & PK_BUTTONS)
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167 | DWORD pkButtons;
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168 | #endif
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169 | #if (__DATA & PK_X)
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170 | LONG pkX;
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171 | #endif
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172 | #if (__DATA & PK_Y)
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173 | LONG pkY;
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174 | #endif
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175 | #if (__DATA & PK_Z)
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176 | LONG pkZ;
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177 | #endif
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178 | #if (__DATA & PK_NORMAL_PRESSURE)
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179 | #if (__MODE & PK_NORMAL_PRESSURE)
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180 | /* relative */
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181 | int pkNormalPressure;
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182 | #else
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183 | /* absolute */
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184 | UINT pkNormalPressure;
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185 | #endif
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186 | #endif
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187 | #if (__DATA & PK_TANGENT_PRESSURE)
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188 | #if (__MODE & PK_TANGENT_PRESSURE)
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189 | /* relative */
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190 | int pkTangentPressure;
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191 | #else
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192 | /* absolute */
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193 | UINT pkTangentPressure;
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194 | #endif
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195 | #endif
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196 | #if (__DATA & PK_ORIENTATION)
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197 | ORIENTATION pkOrientation;
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198 | #endif
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199 | #if (__DATA & PK_ROTATION)
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200 | ROTATION pkRotation; /* 1.1 */
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201 | #endif
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202 |
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203 | #ifndef NOWTEXTENSIONS
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204 | /* extensions begin here. */
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205 | #if (__EXT(FKEYS) == PKEXT_RELATIVE) || (__EXT(FKEYS) == PKEXT_ABSOLUTE)
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206 | UINT pkFKeys;
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207 | #endif
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208 | #if (__EXT(TILT) == PKEXT_RELATIVE) || (__EXT(TILT) == PKEXT_ABSOLUTE)
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209 | TILT pkTilt;
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210 | #endif
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211 | #endif
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212 |
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213 | } __TYPES ;
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214 |
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215 | #undef PACKETNAME
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216 | #undef __TAG
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217 | #undef __TAG2
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218 | #undef __TYPES
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219 | #undef __TYPES2
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220 | #undef __DATA
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221 | #undef __MODE
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222 | #undef __PFX
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223 | #undef __PFX2
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224 | #undef __PFX3
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225 | #undef __IFX
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226 | #undef __IFX2
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227 | #undef __IFX3
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228 | #undef __SFX2
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229 | #undef __SFX3
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230 |
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231 | #ifdef __cplusplus
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232 | }
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233 | #endif /* __cplusplus */
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