Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/freeglut/src/mswin/fg_input_devices_mswin.c @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1 /*
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2 * fg_input_devices_mswin.c
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3 *
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4 * The Windows-specific mouse cursor related stuff.
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5 *
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6 * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved.
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7 * Written by John F. Fay, <fayjf@sourceforge.net>
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8 * Creation date: Sat Jan 21, 2012
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9 *
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10 * Permission is hereby granted, free of charge, to any person obtaining a
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11 * copy of this software and associated documentation files (the "Software"),
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12 * to deal in the Software without restriction, including without limitation
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13 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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14 * and/or sell copies of the Software, and to permit persons to whom the
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15 * Software is furnished to do so, subject to the following conditions:
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16 *
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17 * The above copyright notice and this permission notice shall be included
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18 * in all copies or substantial portions of the Software.
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19 *
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20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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21 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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23 * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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24 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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25 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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26 */
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28 #include <GL/freeglut.h>
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29 #include "../fg_internal.h"
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31 #include <sys/types.h>
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32 #include <winbase.h>
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33
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34 typedef struct {
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35 HANDLE fh;
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36 COMMTIMEOUTS timeouts_save;
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37 DCB dcb_save;
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38 } SERIALPORT;
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40 /* Serial Port Prototypes */
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41 SERIALPORT *serial_open ( const char *device );
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42 void serial_close ( SERIALPORT *port );
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43 int serial_getchar ( SERIALPORT *port );
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44 int serial_putchar ( SERIALPORT *port, unsigned char ch );
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45 void serial_flush ( SERIALPORT *port );
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48 void fgPlatformRegisterDialDevice ( const char *dial_device )
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49 {
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50 if (!dial_device){
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51 static char devname[256];
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52 DWORD size=sizeof(devname);
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53 DWORD type = REG_SZ;
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54 HKEY key;
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55 if (RegOpenKeyA(HKEY_LOCAL_MACHINE,"SOFTWARE\\FreeGLUT",&key)==ERROR_SUCCESS) {
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56 if (RegQueryValueExA(key,"DialboxSerialPort",NULL,&type,(LPBYTE)devname,&size)==ERROR_SUCCESS){
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57 dial_device=devname;
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58 }
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59 RegCloseKey(key);
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60 }
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61 }
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62 }
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65 /* Serial Port Functions */
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66 SERIALPORT *serial_open(const char *device){
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67 HANDLE fh;
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68 DCB dcb={sizeof(DCB)};
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69 COMMTIMEOUTS timeouts;
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70 SERIALPORT *port;
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72 fh = CreateFile(device,GENERIC_READ|GENERIC_WRITE,0,NULL,
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73 OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
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74 if (!fh) return NULL;
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76 port = malloc(sizeof(SERIALPORT));
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77 ZeroMemory(port, sizeof(SERIALPORT));
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78 port->fh = fh;
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80 /* save current port settings */
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81 GetCommState(fh,&port->dcb_save);
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82 GetCommTimeouts(fh,&port->timeouts_save);
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83
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84 dcb.DCBlength=sizeof(DCB);
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85 BuildCommDCB("96,n,8,1",&dcb);
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86 SetCommState(fh,&dcb);
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88 ZeroMemory(&timeouts,sizeof(timeouts));
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89 timeouts.ReadTotalTimeoutConstant=1;
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90 timeouts.WriteTotalTimeoutConstant=1;
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91 SetCommTimeouts(fh,&timeouts);
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93 serial_flush(port);
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95 return port;
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96 }
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98 void serial_close(SERIALPORT *port){
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99 if (port){
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100 /* restore old port settings */
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101 SetCommState(port->fh,&port->dcb_save);
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102 SetCommTimeouts(port->fh,&port->timeouts_save);
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103 CloseHandle(port->fh);
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104 free(port);
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105 }
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106 }
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107
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108 int serial_getchar(SERIALPORT *port){
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109 DWORD n;
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110 unsigned char ch;
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111 if (!port) return EOF;
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112 if (!ReadFile(port->fh,&ch,1,&n,NULL)) return EOF;
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113 if (n==1) return ch;
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114 return EOF;
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115 }
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116
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117 int serial_putchar(SERIALPORT *port, unsigned char ch){
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118 DWORD n;
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119 if (!port) return 0;
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120 return WriteFile(port->fh,&ch,1,&n,NULL);
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121 }
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122
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123 void serial_flush ( SERIALPORT *port )
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124 {
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125 FlushFileBuffers(port->fh);
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126 }
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127