annotate src/video/win32/SDL_win32mouse.c @ 4839:05d172e92b52

Merging branches. Will begin correcting mistakes introduced by merging.
author Eli Gottlieb <eligottlieb@gmail.com>
date Mon, 09 Aug 2010 15:41:33 -0400
parents f7b03b6838cb
children 3e69e077cb95
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /* we need to define it, so that raw input is included*/
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24
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25 #if (_WIN32_WINNT < 0x0501)
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26 #undef _WIN32_WINNT
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27 #define _WIN32_WINNT 0x0501
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28 #endif
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29
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30 #include "SDL_config.h"
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31
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32 #include "SDL_win32video.h"
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33
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34 #include "../../events/SDL_mouse_c.h"
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35
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36 extern HANDLE *mice;
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37 extern int total_mice;
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38 extern int tablet;
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39
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40 void
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41 WIN_InitMouse(_THIS)
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42 {
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43 int index = 0;
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44 RAWINPUTDEVICELIST *deviceList = NULL;
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45 int devCount = 0;
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46 int i;
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47 UINT tmp = 0;
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48 char *buffer = NULL;
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49 char *tab = "wacom"; /* since windows does't give us handles to tablets, we have to detect a tablet by it's name */
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50 const char *rdp = "rdp_mou";
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51 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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52
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53 /* WinCE has no RawInputDeviceList */
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54 #ifdef _WIN32_WCE
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55 SDL_Mouse mouse;
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56 SDL_zero(mouse);
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57 mouse.id = 0;
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58 SDL_AddMouse(&mouse, "Stylus", 0, 0, 1);
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59 #else
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60 /* we're checking for the number of rawinput devices */
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61 if (GetRawInputDeviceList(NULL, &devCount, sizeof(RAWINPUTDEVICELIST))) {
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62 return;
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63 }
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64
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65 deviceList = SDL_malloc(sizeof(RAWINPUTDEVICELIST) * devCount);
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66
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67 /* we're getting the raw input device list */
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68 GetRawInputDeviceList(deviceList, &devCount, sizeof(RAWINPUTDEVICELIST));
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69 mice = SDL_malloc(devCount * sizeof(HANDLE));
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70
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71 /* we're getting the details of the devices */
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72 for (i = 0; i < devCount; ++i) {
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73 int is_rdp = 0;
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74 UINT j;
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75 UINT k;
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76 char *default_device_name = "Pointing device xx";
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77 const char *reg_key_root = "System\\CurrentControlSet\\Enum\\";
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78 char *device_name = SDL_malloc(256 * sizeof(char));
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79 char *key_name = NULL;
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80 char *tmp_name = NULL;
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81 LONG rc = 0;
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82 HKEY hkey;
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83 DWORD regtype = REG_SZ;
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84 DWORD out = 256 * sizeof(char);
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85 SDL_Mouse mouse;
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86 size_t l;
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87 if (deviceList[i].dwType != RIM_TYPEMOUSE) { /* if a device isn't a mouse type we don't want it */
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88 continue;
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89 }
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90 if (GetRawInputDeviceInfoA
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91 (deviceList[i].hDevice, RIDI_DEVICENAME, NULL, &tmp) < 0) {
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92 continue;
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93 }
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94 buffer = SDL_malloc((tmp + 1) * sizeof(char));
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95 key_name =
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96 SDL_malloc((tmp + SDL_strlen(reg_key_root) + 1) * sizeof(char));
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97
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98 /* we're getting the device registry path and polishing it to get it's name,
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99 surely there must be an easier way, but we haven't found it yet */
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100 if (GetRawInputDeviceInfoA
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101 (deviceList[i].hDevice, RIDI_DEVICENAME, buffer, &tmp) < 0) {
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102 continue;
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103 }
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104 buffer += 4;
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105 tmp -= 4;
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106 tmp_name = buffer;
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107 for (j = 0; j < tmp; ++j) {
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108 if (*tmp_name == '#') {
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109 *tmp_name = '\\';
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110 }
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111
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112 else if (*tmp_name == '{') {
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113 break;
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114 }
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115 ++tmp_name;
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116 }
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117 *tmp_name = '\0';
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118 SDL_memcpy(key_name, reg_key_root, SDL_strlen(reg_key_root));
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119 SDL_memcpy(key_name + (SDL_strlen(reg_key_root)), buffer, j + 1);
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120 l = SDL_strlen(key_name);
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121 is_rdp = 0;
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122 if (l >= 7) {
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123 for (j = 0; j < l - 7; ++j) {
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124 for (k = 0; k < 7; ++k) {
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125 if (rdp[k] !=
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126 SDL_tolower((unsigned char) key_name[j + k])) {
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127 break;
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128 }
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129 }
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130 if (k == 7) {
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131 is_rdp = 1;
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132 break;
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133 }
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134 }
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135 }
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136
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137 buffer -= 4;
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138
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139 if (is_rdp == 1) {
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140 SDL_free(buffer);
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141 SDL_free(key_name);
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142 SDL_free(device_name);
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143 is_rdp = 0;
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144 continue;
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145 }
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146
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147 /* we're opening the registry key to get the mouse name */
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148 rc = RegOpenKeyExA(HKEY_LOCAL_MACHINE, key_name, 0, KEY_READ, &hkey);
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149 if (rc != ERROR_SUCCESS) {
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150 SDL_memcpy(device_name, default_device_name,
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151 SDL_strlen(default_device_name));
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152 }
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153 rc = RegQueryValueExA(hkey, "DeviceDesc", NULL, &regtype, device_name,
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154 &out);
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155 RegCloseKey(hkey);
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156 if (rc != ERROR_SUCCESS) {
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157 SDL_memcpy(device_name, default_device_name,
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158 SDL_strlen(default_device_name));
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159 }
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160
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161 /* we're saving the handle to the device */
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162 mice[index] = deviceList[i].hDevice;
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163 SDL_zero(mouse);
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164 mouse.id = index;
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165 l = SDL_strlen(device_name);
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166
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167 /* we're checking if the device isn't by any chance a tablet */
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168 if (data->wintabDLL && tablet == -1) {
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169 for (j = 0; j < l - 5; ++j) {
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170 for (k = 0; k < 5; ++k) {
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171 if (tab[k] !=
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172 SDL_tolower((unsigned char) device_name[j + k])) {
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173 break;
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174 }
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175 }
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176 if (k == 5) {
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177 tablet = index;
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178 break;
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179 }
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180 }
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181 }
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182
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183 /* if it's a tablet, let's read it's maximum and minimum pressure */
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184 if (tablet == index) {
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185 AXIS pressure;
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186 int cursors;
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187 data->WTInfoA(WTI_DEVICES, DVC_NPRESSURE, &pressure);
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188 data->WTInfoA(WTI_DEVICES, DVC_NCSRTYPES, &cursors);
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189 SDL_AddMouse(&mouse, device_name, pressure.axMax, pressure.axMin,
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190 cursors);
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191 } else {
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192 SDL_AddMouse(&mouse, device_name, 0, 0, 1);
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193 }
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194 ++index;
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195 SDL_free(buffer);
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196 SDL_free(key_name);
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197 }
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198 total_mice = index;
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199 SDL_free(deviceList);
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diff changeset
200 #endif /*_WIN32_WCE*/
1895
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parents:
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201 }
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parents:
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202
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parents:
diff changeset
203 void
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parents:
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204 WIN_QuitMouse(_THIS)
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parents:
diff changeset
205 {
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parents:
diff changeset
206 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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parents:
diff changeset
207
2710
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diff changeset
208 /* let's delete all of the mice */
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diff changeset
209 SDL_MouseQuit();
1895
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parents:
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210 }
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parents:
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211
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parents:
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212 /* vi: set ts=4 sw=4 expandtab: */