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2724
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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 #if (__EXT(EXPKEYS) == PKEXT_RELATIVE) || (__EXT(EXPKEYS) == PKEXT_ABSOLUTE)
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212 WORD pkExpKeys[4]; /* 1.3 */
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213 #endif
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214 #endif
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215
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216 } __TYPES ;
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217
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218 #undef PACKETNAME
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219 #undef __TAG
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220 #undef __TAG2
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221 #undef __TYPES
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222 #undef __TYPES2
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223 #undef __DATA
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224 #undef __MODE
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225 #undef __PFX
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226 #undef __PFX2
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227 #undef __PFX3
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228 #undef __IFX
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229 #undef __IFX2
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230 #undef __IFX3
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231 #undef __SFX2
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232 #undef __SFX3
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233
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234 #ifdef __cplusplus
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235 }
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236 #endif /* __cplusplus */
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