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annotate src/video/win32/SDL_win32mouse.c @ 2971:a3012c6652ff

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Should we also set the icon in the task manager?
author Sam Lantinga <slouken@libsdl.org>
date Sat, 03 Jan 2009 01:20:55 +0000
parents b93965a16fe0
children d2f68ec8c1d0
rev   line source
1895
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 int 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 /* we're checking for the number of rawinput devices */
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54 if (GetRawInputDeviceList(NULL, &devCount, sizeof(RAWINPUTDEVICELIST))) {
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55 return;
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56 }
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57
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58 deviceList = SDL_malloc(sizeof(RAWINPUTDEVICELIST) * devCount);
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59
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60 /* we're getting the raw input device list */
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61 GetRawInputDeviceList(deviceList, &devCount, sizeof(RAWINPUTDEVICELIST));
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62 mice = SDL_malloc(devCount * sizeof(HANDLE));
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63
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64 /* we're getting the details of the devices */
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65 for (i = 0; i < devCount; ++i) {
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66 int is_rdp = 0;
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67 int j;
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68 int k;
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69 char *default_device_name = "Pointing device xx";
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70 const char *reg_key_root = "System\\CurrentControlSet\\Enum\\";
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71 char *device_name = SDL_malloc(256 * sizeof(char));
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72 char *key_name = NULL;
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73 char *tmp_name = NULL;
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74 LONG rc = 0;
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75 HKEY hkey;
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76 DWORD regtype = REG_SZ;
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77 DWORD out = 256 * sizeof(char);
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78 SDL_Mouse mouse;
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79 int l;
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80 if (deviceList[i].dwType != RIM_TYPEMOUSE) { /* if a device isn't a mouse type we don't want it */
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81 continue;
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82 }
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83 if (GetRawInputDeviceInfoA
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84 (deviceList[i].hDevice, RIDI_DEVICENAME, NULL, &tmp) < 0) {
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85 continue;
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86 }
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87 buffer = SDL_malloc((tmp + 1) * sizeof(char));
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88 key_name = SDL_malloc(tmp + sizeof(reg_key_root) * sizeof(char));
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89
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90 /* we're getting the device registry path and polishing it to get it's name,
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91 surely there must be an easier way, but we haven't found it yet */
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92 if (GetRawInputDeviceInfoA
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93 (deviceList[i].hDevice, RIDI_DEVICENAME, buffer, &tmp) < 0) {
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94 continue;
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95 }
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96 buffer += 4;
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97 tmp -= 4;
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98 tmp_name = buffer;
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99 for (j = 0; j < tmp; ++j) {
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100 if (*tmp_name == '#') {
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101 *tmp_name = '\\';
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102 }
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103
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104 else if (*tmp_name == '{') {
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105 break;
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106 }
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107 ++tmp_name;
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108 }
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109 *tmp_name = '\0';
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110 SDL_memcpy(key_name, reg_key_root, SDL_strlen(reg_key_root));
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111 SDL_memcpy(key_name + (SDL_strlen(reg_key_root)), buffer, j + 1);
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112 l = SDL_strlen(key_name);
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113 is_rdp = 0;
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114 if (l >= 7) {
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115 for (j = 0; j < l - 7; ++j) {
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116 for (k = 0; k < 7; ++k) {
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117 if (rdp[k] !=
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118 SDL_tolower((unsigned char) key_name[j + k])) {
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119 break;
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120 }
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121 }
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122 if (k == 7) {
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123 is_rdp = 1;
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124 break;
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125 }
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126 }
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127 }
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128 if (is_rdp == 1) {
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129 SDL_free(buffer);
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130 SDL_free(key_name);
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131 SDL_free(device_name);
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132 is_rdp = 0;
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133 continue;
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134 }
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135
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136 /* we're opening the registry key to get the mouse name */
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137 rc = RegOpenKeyExA(HKEY_LOCAL_MACHINE, key_name, 0, KEY_READ, &hkey);
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138 if (rc != ERROR_SUCCESS) {
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139 SDL_memcpy(device_name, default_device_name,
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140 SDL_strlen(default_device_name));
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141 }
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142 rc = RegQueryValueExA(hkey, "DeviceDesc", NULL, &regtype, device_name,
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143 &out);
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144 RegCloseKey(hkey);
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145 if (rc != ERROR_SUCCESS) {
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146 SDL_memcpy(device_name, default_device_name,
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147 SDL_strlen(default_device_name));
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148 }
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149
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150 /* we're saving the handle to the device */
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151 mice[index] = deviceList[i].hDevice;
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152 SDL_zero(mouse);
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153 mouse.id = index;
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154 l = SDL_strlen(device_name);
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155
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156 /* we're checking if the device isn't by any chance a tablet */
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157 if (data->wintabDLL && tablet == -1) {
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158 for (j = 0; j < l - 5; ++j) {
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159 for (k = 0; k < 5; ++k) {
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160 if (tab[k] !=
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161 SDL_tolower((unsigned char) device_name[j + k])) {
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162 break;
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163 }
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164 }
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165 if (k == 5) {
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166 tablet = index;
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167 break;
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168 }
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169 }
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170 }
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171
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172 /* if it's a tablet, let's read it's maximum and minimum pressure */
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173 if (tablet == index) {
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174 AXIS pressure;
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175 int cursors;
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176 data->WTInfoA(WTI_DEVICES, DVC_NPRESSURE, &pressure);
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177 data->WTInfoA(WTI_DEVICES, DVC_NCSRTYPES, &cursors);
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178 data->mouse =
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179 SDL_AddMouse(&mouse, device_name, pressure.axMax,
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180 pressure.axMin, cursors);
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181 } else {
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182 data->mouse = SDL_AddMouse(&mouse, device_name, 0, 0, 1);
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183 }
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184 ++index;
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185 SDL_free(buffer);
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186 SDL_free(key_name);
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187 }
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188 total_mice = index;
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189 SDL_free(deviceList);
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190 }
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191
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192 void
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193 WIN_QuitMouse(_THIS)
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194 {
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195 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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196
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197 /* let's delete all of the mice */
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198 SDL_MouseQuit();
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199 }
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200
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201 /* vi: set ts=4 sw=4 expandtab: */