annotate src/main/win32/SDL_main.c @ 345:05b97424225f

*** empty log message ***
author Sam Lantinga <slouken@libsdl.org>
date Sat, 13 Apr 2002 18:08:45 +0000
parents 0e66fd980014
children a6fa62b1be09
rev   line source
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1 /*
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2 SDL_main.c, placed in the public domain by Sam Lantinga 4/13/98
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3
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4 The WinMain function -- calls your program's main() function
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5 */
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6
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7 #include <stdio.h>
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8 #include <string.h>
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9 #include <ctype.h>
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10 #include <stdlib.h>
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11
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12 #include <windows.h>
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13 #include <malloc.h> /* For _alloca() */
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14
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15 /* Include the SDL main definition header */
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16 #include "SDL.h"
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17 #include "SDL_main.h"
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18 #ifdef main
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19 #ifndef _WIN32_WCE_EMULATION
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20 #undef main
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21 #endif
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22 #endif
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23
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24 /* Do we really not want stdio redirection with Windows CE? */
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25 #ifdef _WIN32_WCE
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26 #define NO_STDIO_REDIRECT
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27 #endif
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28
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29 /* The standard output files */
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30 #define STDOUT_FILE TEXT("stdout.txt")
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31 #define STDERR_FILE TEXT("stderr.txt")
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32
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33 #if defined(_WIN32_WCE) && _WIN32_WCE < 300
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34 /* seems to be undefined in Win CE although in online help */
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35 #define isspace(a) (((CHAR)a == ' ') || ((CHAR)a == '\t'))
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36
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37 /* seems to be undefined in Win CE although in online help */
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38 char *strrchr(char *str, int c)
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39 {
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40 char *p;
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41
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42 /* Skip to the end of the string */
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43 p=str;
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44 while (*p)
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45 p++;
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46
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47 /* Look for the given character */
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48 while ( (p >= str) && (*p != (CHAR)c) )
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49 p--;
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50
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51 /* Return NULL if character not found */
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52 if ( p < str ) {
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53 p = NULL;
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54 }
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55 return p;
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56 }
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57 #endif /* _WIN32_WCE < 300 */
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58
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59 /* Parse a command line buffer into arguments */
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60 static int ParseCommandLine(char *cmdline, char **argv)
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61 {
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62 char *bufp;
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63 int argc;
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64
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65 argc = 0;
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66 for ( bufp = cmdline; *bufp; ) {
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67 /* Skip leading whitespace */
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68 while ( isspace(*bufp) ) {
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69 ++bufp;
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70 }
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71 /* Skip over argument */
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72 if ( *bufp == '"' ) {
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73 ++bufp;
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74 if ( *bufp ) {
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75 if ( argv ) {
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76 argv[argc] = bufp;
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77 }
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78 ++argc;
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79 }
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80 /* Skip over word */
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81 while ( *bufp && (*bufp != '"') ) {
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82 ++bufp;
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83 }
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84 } else {
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85 if ( *bufp ) {
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86 if ( argv ) {
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87 argv[argc] = bufp;
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88 }
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89 ++argc;
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90 }
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91 /* Skip over word */
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92 while ( *bufp && ! isspace(*bufp) ) {
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93 ++bufp;
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94 }
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95 }
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96 if ( *bufp ) {
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97 if ( argv ) {
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98 *bufp = '\0';
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99 }
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100 ++bufp;
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101 }
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102 }
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103 if ( argv ) {
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104 argv[argc] = NULL;
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105 }
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106 return(argc);
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107 }
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108
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109 /* Show an error message */
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110 static void ShowError(const char *title, const char *message)
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111 {
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112 /* If USE_MESSAGEBOX is defined, you need to link with user32.lib */
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113 #ifdef USE_MESSAGEBOX
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114 MessageBox(NULL, message, title, MB_ICONEXCLAMATION|MB_OK);
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115 #else
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116 fprintf(stderr, "%s: %s\n", title, message);
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117 #endif
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118 }
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119
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120 /* Pop up an out of memory message, returns to Windows */
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121 static BOOL OutOfMemory(void)
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122 {
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123 ShowError("Fatal Error", "Out of memory - aborting");
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124 return FALSE;
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125 }
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126
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127 /* Remove the output files if there was no output written */
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128 static void __cdecl cleanup_output(void)
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129 {
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130 #ifndef NO_STDIO_REDIRECT
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131 FILE *file;
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132 int empty;
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133 #endif
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134
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135 /* Flush the output in case anything is queued */
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136 fclose(stdout);
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137 fclose(stderr);
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138
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139 #ifndef NO_STDIO_REDIRECT
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140 /* See if the files have any output in them */
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141 file = fopen(STDOUT_FILE, "rb");
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142 if ( file ) {
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143 empty = (fgetc(file) == EOF) ? 1 : 0;
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144 fclose(file);
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145 if ( empty ) {
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146 remove(STDOUT_FILE);
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147 }
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148 }
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149 file = fopen(STDERR_FILE, "rb");
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150 if ( file ) {
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151 empty = (fgetc(file) == EOF) ? 1 : 0;
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152 fclose(file);
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153 if ( empty ) {
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154 remove(STDERR_FILE);
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155 }
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156 }
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157 #endif
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158 }
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159
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160 #if defined(_MSC_VER) && !defined(_WIN32_WCE)
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161 /* The VC++ compiler needs main defined */
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162 #define console_main main
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163 #endif
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164
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165 /* This is where execution begins [console apps] */
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166 int console_main(int argc, char *argv[])
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167 {
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168 int n;
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169 char *bufp, *appname;
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170
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171 /* Get the class name from argv[0] */
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172 appname = argv[0];
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173 if ( (bufp=strrchr(argv[0], '\\')) != NULL ) {
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174 appname = bufp+1;
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175 } else
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176 if ( (bufp=strrchr(argv[0], '/')) != NULL ) {
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177 appname = bufp+1;
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178 }
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179
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180 if ( (bufp=strrchr(appname, '.')) == NULL )
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181 n = strlen(appname);
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182 else
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183 n = (bufp-appname);
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184
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185 bufp = (char *)alloca(n+1);
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186 if ( bufp == NULL ) {
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187 return OutOfMemory();
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188 }
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189 strncpy(bufp, appname, n);
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190 bufp[n] = '\0';
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191 appname = bufp;
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192
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193 /* Load SDL dynamic link library */
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194 if ( SDL_Init(SDL_INIT_NOPARACHUTE) < 0 ) {
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195 ShowError("WinMain() error", SDL_GetError());
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196 return(FALSE);
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197 }
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198 atexit(cleanup_output);
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199 atexit(SDL_Quit);
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200
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201 #ifndef DISABLE_VIDEO
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202 #if 0
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203 /* Create and register our class *
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204 DJM: If we do this here, the user nevers gets a chance to
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205 putenv(SDL_WINDOWID). This is already called later by
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206 the (DIB|DX5)_CreateWindow function, so it should be
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207 safe to comment it out here.
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208 if ( SDL_RegisterApp(appname, CS_BYTEALIGNCLIENT,
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209 GetModuleHandle(NULL)) < 0 ) {
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210 ShowError("WinMain() error", SDL_GetError());
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211 exit(1);
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212 }*/
149
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213 #else
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214 /* Sam:
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215 We still need to pass in the application handle so that
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216 DirectInput will initialize properly when SDL_RegisterApp()
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217 is called later in the video initialization.
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218 */
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219 SDL_SetModuleHandle(GetModuleHandle(NULL));
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220 #endif /* 0 */
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221 #endif /* !DISABLE_VIDEO */
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222
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223 /* Run the application main() code */
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224 SDL_main(argc, argv);
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225
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226 /* Exit cleanly, calling atexit() functions */
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227 exit(0);
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228 }
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229
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230 /* This is where execution begins [windowed apps] */
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231 #ifdef _WIN32_WCE
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232 int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPWSTR szCmdLine, int sw)
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233 #else
0
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234 int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
36
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235 #endif
0
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236 {
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237 HINSTANCE handle;
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238 char **argv;
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239 int argc;
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240 char *cmdline;
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241 #ifdef _WIN32_WCE
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242 wchar_t *bufp;
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243 int nLen;
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244 #else
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245 char *bufp;
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246 #endif
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247 #ifndef NO_STDIO_REDIRECT
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248 FILE *newfp;
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249 #endif
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250
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251 /* Start up DDHELP.EXE before opening any files, so DDHELP doesn't
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252 keep them open. This is a hack.. hopefully it will be fixed
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253 someday. DDHELP.EXE starts up the first time DDRAW.DLL is loaded.
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254 */
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255 handle = LoadLibrary(TEXT("DDRAW.DLL"));
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256 if ( handle != NULL ) {
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257 FreeLibrary(handle);
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258 }
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259
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260 #ifndef NO_STDIO_REDIRECT
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261 /* Redirect standard input and standard output */
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262 newfp = freopen(STDOUT_FILE, "w", stdout);
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263 if ( newfp == NULL ) { /* This happens on NT */
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264 #if !defined(stdout)
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265 stdout = fopen(STDOUT_FILE, "w");
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266 #else
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267 newfp = fopen(STDOUT_FILE, "w");
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268 if ( newfp ) {
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269 *stdout = *newfp;
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270 }
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271 #endif
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272 }
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273 newfp = freopen(STDERR_FILE, "w", stderr);
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274 if ( newfp == NULL ) { /* This happens on NT */
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275 #if !defined(stderr)
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276 stderr = fopen(STDERR_FILE, "w");
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277 #else
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278 newfp = fopen(STDERR_FILE, "w");
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279 if ( newfp ) {
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280 *stderr = *newfp;
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281 }
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282 #endif
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283 }
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284 setvbuf(stdout, NULL, _IOLBF, BUFSIZ); /* Line buffered */
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285 setbuf(stderr, NULL); /* No buffering */
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286 #endif /* !NO_STDIO_REDIRECT */
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287
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288 #ifdef _WIN32_WCE
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289 nLen = wcslen(szCmdLine)+128+1;
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290 bufp = (wchar_t *)alloca(nLen*2);
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291 GetModuleFileName(NULL, bufp, 128);
112
9ef74357a5fb Incorporated slightly modified version of Rainer's WinCE patch
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diff changeset
292 wcsncpy(bufp+wcslen(bufp), szCmdLine,nLen-wcslen(bufp));
36
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293 nLen = wcslen(bufp)+1;
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294 cmdline = (char *)alloca(nLen);
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295 if ( cmdline == NULL ) {
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296 return OutOfMemory();
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297 }
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298 WideCharToMultiByte(CP_ACP, 0, bufp, -1, cmdline, nLen, NULL, NULL);
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299 #else
0
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300 /* Grab the command line (use alloca() on Windows) */
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301 bufp = GetCommandLine();
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302 cmdline = (char *)alloca(strlen(bufp)+1);
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303 if ( cmdline == NULL ) {
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304 return OutOfMemory();
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305 }
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306 strcpy(cmdline, bufp);
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diff changeset
307 #endif
0
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308
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309 /* Parse it into argv and argc */
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310 argc = ParseCommandLine(cmdline, NULL);
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311 argv = (char **)alloca((argc+1)*(sizeof *argv));
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312 if ( argv == NULL ) {
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313 return OutOfMemory();
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314 }
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315 ParseCommandLine(cmdline, argv);
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316
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317 /* Run the main program (after a little SDL initialization) */
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318 return(console_main(argc, argv));
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319 }