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Rev | Author | Line No. | Line |
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68 | daniel-mar | 1 | unit UD2_Utils; |
2 | |||
3 | interface |
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4 | |||
5 | {$IF CompilerVersion >= 25.0} |
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6 | {$LEGACYIFEND ON} |
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7 | {$IFEND} |
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8 | |||
70 | daniel-mar | 9 | {$INCLUDE 'UserDetect2.inc'} |
10 | |||
68 | daniel-mar | 11 | uses |
12 | Windows, SysUtils, Dialogs, ShellAPI; |
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13 | |||
14 | type |
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15 | TArrayOfString = array of String; |
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16 | |||
17 | TIconFileIdx = record |
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18 | FileName: string; |
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19 | IconIndex: integer; |
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20 | end; |
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21 | |||
22 | const |
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23 | // Prefixes for UD2_RunCmd() |
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24 | UD2_RUN_IN_OWN_DIRECTORY_PREFIX = '$RIOD$'; |
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25 | |||
26 | function SplitString(const aSeparator, aString: String; aMax: Integer = 0): TArrayOfString; |
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27 | function BetterInterpreteBool(str: String): boolean; |
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28 | function GetOwnCmdName: string; |
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29 | function ExpandEnvStr(const szInput: string): string; |
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30 | procedure UD2_RunCMD(cmdLine: string; WindowMode: integer); |
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31 | function SplitIconString(IconString: string): TIconFileIdx; |
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32 | // function GetHTML(AUrl: string): string; |
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33 | procedure VTS_CheckUpdates(VTSID, CurVer: string); |
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71 | daniel-mar | 34 | function FormatOSError(ec: DWORD): string; |
68 | daniel-mar | 35 | |
36 | implementation |
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37 | |||
38 | uses |
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39 | WinInet, Forms; |
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40 | |||
41 | function SplitString(const aSeparator, aString: String; aMax: Integer = 0): TArrayOfString; |
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42 | // http://stackoverflow.com/a/2626991/3544341 |
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43 | var |
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44 | i, strt, cnt: Integer; |
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45 | sepLen: Integer; |
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46 | |||
47 | procedure AddString(aEnd: Integer = -1); |
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48 | var |
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49 | endPos: Integer; |
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50 | begin |
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51 | if (aEnd = -1) then |
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52 | endPos := i |
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53 | else |
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54 | endPos := aEnd + 1; |
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55 | |||
56 | if (strt < endPos) then |
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57 | result[cnt] := Copy(aString, strt, endPos - strt) |
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58 | else |
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59 | result[cnt] := ''; |
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60 | |||
61 | Inc(cnt); |
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62 | end; |
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63 | |||
64 | begin |
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65 | if (aString = '') or (aMax < 0) then |
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66 | begin |
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67 | SetLength(result, 0); |
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68 | EXIT; |
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69 | end; |
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70 | |||
71 | if (aSeparator = '') then |
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72 | begin |
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73 | SetLength(result, 1); |
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74 | result[0] := aString; |
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75 | EXIT; |
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76 | end; |
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77 | |||
78 | sepLen := Length(aSeparator); |
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79 | SetLength(result, (Length(aString) div sepLen) + 1); |
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80 | |||
81 | i := 1; |
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82 | strt := i; |
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83 | cnt := 0; |
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84 | while (i <= (Length(aString)- sepLen + 1)) do |
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85 | begin |
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86 | if (aString[i] = aSeparator[1]) then |
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87 | if (Copy(aString, i, sepLen) = aSeparator) then |
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88 | begin |
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89 | AddString; |
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90 | |||
91 | if (cnt = aMax) then |
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92 | begin |
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93 | SetLength(result, cnt); |
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94 | EXIT; |
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95 | end; |
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96 | |||
97 | Inc(i, sepLen - 1); |
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98 | strt := i + 1; |
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99 | end; |
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100 | |||
101 | Inc(i); |
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102 | end; |
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103 | |||
104 | AddString(Length(aString)); |
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105 | |||
106 | SetLength(result, cnt); |
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107 | end; |
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108 | |||
109 | function BetterInterpreteBool(str: String): boolean; |
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110 | resourcestring |
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111 | LNG_CANNOT_INTERPRETE_BOOL = 'Cannot determinate the boolean value of "%s"'; |
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112 | begin |
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113 | str := LowerCase(str); |
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114 | if (str = 'yes') or (str = 'true') or (str = '1') then |
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115 | result := true |
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116 | else if (str = 'no') or (str = 'false') or (str = '0') then |
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117 | result := false |
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118 | else |
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119 | raise EConvertError.CreateFmt(LNG_CANNOT_INTERPRETE_BOOL, [str]); |
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120 | end; |
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121 | |||
122 | function GetOwnCmdName: string; |
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123 | begin |
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124 | result := ParamStr(0); |
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125 | result := ExtractFileName(result); |
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126 | result := ChangeFileExt(result, ''); |
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127 | result := UpperCase(result); |
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128 | end; |
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129 | |||
130 | function ExpandEnvStr(const szInput: string): string; |
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131 | // http://stackoverflow.com/a/2833147/3544341 |
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132 | const |
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133 | MAXSIZE = 32768; |
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134 | begin |
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135 | SetLength(Result, MAXSIZE); |
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136 | SetLength(Result, ExpandEnvironmentStrings(pchar(szInput), |
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137 | @Result[1],length(Result))); |
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138 | end; |
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139 | |||
71 | daniel-mar | 140 | function FormatOSError(ec: DWORD): string; |
68 | daniel-mar | 141 | resourcestring |
142 | LNG_UNKNOWN_ERROR = 'Operating system error %d'; |
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71 | daniel-mar | 143 | begin |
144 | result := SysErrorMessage(ec); |
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145 | |||
146 | // Some errors have no error message, e.g. error 193 (BAD_EXE_FORMAT) in the German version of Windows 10 |
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147 | if result = '' then result := Format(LNG_UNKNOWN_ERROR, [ec]); |
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148 | end; |
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149 | |||
150 | procedure CheckLastOSCall(AThrowException: boolean); |
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68 | daniel-mar | 151 | var |
152 | LastError: Cardinal; |
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153 | begin |
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154 | LastError := GetLastError; |
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155 | if LastError <> 0 then |
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156 | begin |
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157 | if AThrowException then |
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158 | begin |
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159 | RaiseLastOSError; |
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160 | end |
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161 | else |
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162 | begin |
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71 | daniel-mar | 163 | MessageDlg(FormatOSError(LastError), mtError, [mbOK], 0); |
68 | daniel-mar | 164 | end; |
165 | end; |
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166 | end; |
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167 | |||
168 | function SplitIconString(IconString: string): TIconFileIdx; |
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169 | var |
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170 | p: integer; |
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171 | begin |
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172 | p := Pos(',', IconString); |
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173 | |||
174 | if p = 0 then |
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175 | begin |
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176 | result.FileName := IconString; |
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177 | result.IconIndex := 0; |
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178 | end |
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179 | else |
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180 | begin |
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181 | result.FileName := ExpandEnvStr(copy(IconString, 0, p-1)); |
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182 | result.IconIndex := StrToInt(Copy(IconString, p+1, Length(IconString)-p)); |
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183 | end; |
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184 | end; |
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185 | |||
186 | procedure UD2_RunCMD(cmdLine: string; WindowMode: integer); |
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187 | // Discussion: http://stackoverflow.com/questions/32802679/acceptable-replacement-for-winexec/32804669#32804669 |
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188 | // Version 1: http://pastebin.com/xQjDmyVe |
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189 | // --> CreateProcess + ShellExecuteEx |
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190 | // --> Problem: Run-In-Same-Directory functionality is not possible |
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191 | // (requires manual command and argument separation) |
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192 | // Version 2: http://pastebin.com/YpUmF5rd |
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193 | // --> Splits command and arguments manually, and uses ShellExecute |
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194 | // --> Problem: error handling wrong |
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195 | // --> Problem: Run-In-Same-Directory functionality is not implemented |
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196 | // Current version: |
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197 | // --> Splits command and arguments manually, and uses ShellExecute |
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198 | // --> Run-In-Same-Directory functionality is implemented |
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199 | resourcestring |
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200 | LNG_INVALID_SYNTAX = 'The command line has an invalid syntax'; |
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201 | var |
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202 | cmdFile, cmdArgs, cmdDir: string; |
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203 | p: integer; |
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204 | sei: TShellExecuteInfo; |
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205 | begin |
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206 | // We need a function which does following: |
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207 | // 1. Replace the Environment strings, e.g. %SystemRoot% |
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208 | // 2. Runs EXE files with parameters (e.g. "cmd.exe /?") |
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209 | // 3. Runs EXE files without path (e.g. "calc.exe") |
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210 | // 4. Runs EXE files without extension (e.g. "calc") |
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211 | // 5. Runs non-EXE files (e.g. "Letter.doc") |
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212 | // 6. Commands with white spaces (e.g. "C:\Program Files\xyz.exe") must be enclosed in quotes. |
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213 | |||
214 | cmdLine := ExpandEnvStr(cmdLine); |
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215 | |||
216 | // Split command line from argument list |
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217 | if Copy(cmdLine, 1, 1) = '"' then |
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218 | begin |
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219 | cmdLine := Copy(cmdLine, 2, Length(cmdLine)-1); |
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220 | p := Pos('"', cmdLine); |
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221 | if p = 0 then |
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222 | begin |
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223 | // No matching quotes |
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224 | // CreateProcess() handles the whole command line as single file name ("abc -> "abc") |
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225 | // ShellExecuteEx() does not accept the command line |
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226 | MessageDlg(LNG_INVALID_SYNTAX, mtError, [mbOK], 0); |
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227 | Exit; |
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228 | end; |
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229 | cmdFile := Copy(cmdLine, 1, p-1); |
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230 | cmdArgs := Copy(cmdLine, p+2, Length(cmdLine)-p-1); |
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231 | end |
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232 | else |
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233 | begin |
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234 | p := Pos(' ', cmdLine); |
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235 | if p = 0 then |
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236 | begin |
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237 | cmdFile := cmdLine; |
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238 | cmdArgs := ''; |
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239 | end |
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240 | else |
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241 | begin |
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242 | cmdFile := Copy(cmdLine, 1, p-1); |
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243 | cmdArgs := Copy(cmdLine, p+1, Length(cmdLine)-p); |
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244 | end; |
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245 | end; |
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246 | |||
247 | if Copy(cmdLine, 1, Length(UD2_RUN_IN_OWN_DIRECTORY_PREFIX)) = UD2_RUN_IN_OWN_DIRECTORY_PREFIX then |
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248 | begin |
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249 | cmdLine := Copy(cmdLine, 1+Length(UD2_RUN_IN_OWN_DIRECTORY_PREFIX), Length(cmdLine)-Length(UD2_RUN_IN_OWN_DIRECTORY_PREFIX)); |
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250 | |||
251 | cmdFile := ExtractFileName(cmdLine); |
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252 | cmdDir := ExtractFilePath(cmdLine); |
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253 | end |
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254 | else |
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255 | begin |
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256 | cmdFile := cmdLine; |
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257 | cmdDir := ''; |
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258 | end; |
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259 | |||
260 | ZeroMemory(@sei, SizeOf(sei)); |
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261 | sei.cbSize := SizeOf(sei); |
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262 | sei.lpFile := PChar(cmdFile); |
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70 | daniel-mar | 263 | {$IFNDEF PREFER_SHELLEXECUTEEX_MESSAGES} |
264 | sei.fMask := SEE_MASK_FLAG_NO_UI; |
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265 | {$ENDIF} |
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68 | daniel-mar | 266 | if cmdArgs <> '' then sei.lpParameters := PChar(cmdArgs); |
267 | if cmdDir <> '' then sei.lpDirectory := PChar(cmdDir); |
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268 | sei.nShow := WindowMode; |
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269 | if ShellExecuteEx(@sei) then Exit; |
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70 | daniel-mar | 270 | {$IFNDEF PREFER_SHELLEXECUTEEX_MESSAGES} |
68 | daniel-mar | 271 | CheckLastOSCall(false); |
70 | daniel-mar | 272 | {$ENDIF} |
68 | daniel-mar | 273 | end; |
274 | |||
275 | function GetHTML(AUrl: string): string; |
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276 | // http://www.delphipraxis.net/post43515.html |
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277 | var |
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278 | databuffer : array[0..4095] of char; |
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279 | ResStr : string; |
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280 | hSession, hfile: hInternet; |
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281 | dwindex,dwcodelen,dwread,dwNumber: cardinal; |
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282 | dwcode : array[1..20] of char; |
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283 | res : pchar; |
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284 | Str : pchar; |
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285 | begin |
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286 | ResStr:=''; |
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287 | if system.pos('http://',lowercase(AUrl))=0 then |
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288 | AUrl:='http://'+AUrl; |
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289 | |||
290 | // Hinzugefügt |
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291 | Application.ProcessMessages; |
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292 | |||
293 | hSession:=InternetOpen('InetURL:/1.0', |
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294 | INTERNET_OPEN_TYPE_PRECONFIG, |
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295 | nil, |
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296 | nil, |
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297 | 0); |
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298 | if assigned(hsession) then |
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299 | begin |
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300 | // Hinzugefügt |
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301 | application.ProcessMessages; |
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302 | |||
303 | hfile:=InternetOpenUrl( |
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304 | hsession, |
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305 | pchar(AUrl), |
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306 | nil, |
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307 | 0, |
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308 | INTERNET_FLAG_RELOAD, |
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309 | 0); |
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310 | dwIndex := 0; |
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311 | dwCodeLen := 10; |
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312 | |||
313 | // Hinzugefügt |
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314 | application.ProcessMessages; |
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315 | |||
316 | HttpQueryInfo(hfile, |
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317 | HTTP_QUERY_STATUS_CODE, |
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318 | @dwcode, |
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319 | dwcodeLen, |
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320 | dwIndex); |
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321 | res := pchar(@dwcode); |
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322 | dwNumber := sizeof(databuffer)-1; |
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323 | if (res ='200') or (res ='302') then |
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324 | begin |
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325 | while (InternetReadfile(hfile, |
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326 | @databuffer, |
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327 | dwNumber, |
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328 | DwRead)) do |
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329 | begin |
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330 | |||
331 | // Hinzugefügt |
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332 | application.ProcessMessages; |
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333 | |||
334 | if dwRead =0 then |
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335 | break; |
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336 | databuffer[dwread]:=#0; |
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337 | Str := pchar(@databuffer); |
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338 | resStr := resStr + Str; |
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339 | end; |
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340 | end |
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341 | else |
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342 | ResStr := 'Status:'+res; |
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343 | if assigned(hfile) then |
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344 | InternetCloseHandle(hfile); |
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345 | end; |
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346 | |||
347 | // Hinzugefügt |
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348 | Application.ProcessMessages; |
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349 | |||
350 | InternetCloseHandle(hsession); |
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351 | Result := resStr; |
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352 | end; |
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353 | |||
354 | procedure VTS_CheckUpdates(VTSID, CurVer: string); |
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355 | resourcestring |
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356 | (* |
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357 | LNG_DOWNLOAD_ERR = 'Ein Fehler ist aufgetreten. Wahrscheinlich ist keine Internetverbindung aufgebaut, oder der der ViaThinkSoft-Server temporär offline.'; |
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358 | LNG_NEW_VERSION = 'Eine neue Programmversion ist vorhanden. Möchten Sie diese jetzt herunterladen?'; |
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359 | LNG_NO_UPDATE = 'Es ist keine neue Programmversion vorhanden.'; |
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360 | *) |
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361 | LNG_DOWNLOAD_ERR = 'An error occurred while searching for updates. Please check your internet connection and firewall.'; |
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362 | LNG_NEW_VERSION = 'A new version is available. Do you want to download it now?'; |
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363 | LNG_NO_UPDATE = 'You already have the newest program version.'; |
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364 | var |
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365 | temp: string; |
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366 | begin |
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367 | temp := GetHTML('http://www.viathinksoft.de/update/?id='+VTSID); |
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368 | if Copy(temp, 0, 7) = 'Status:' then |
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369 | begin |
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370 | MessageDlg(LNG_DOWNLOAD_ERR, mtError, [mbOK], 0); |
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371 | end |
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372 | else |
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373 | begin |
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374 | if GetHTML('http://www.viathinksoft.de/update/?id='+VTSID) <> CurVer then |
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375 | begin |
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376 | if MessageDlg(LNG_NEW_VERSION, mtConfirmation, mbYesNoCancel, 0) = ID_YES then |
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377 | begin |
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378 | shellexecute(application.handle, 'open', pchar('http://www.viathinksoft.de/update/?id=@spacemission'), '', '', sw_normal); |
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379 | end; |
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380 | end |
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381 | else |
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382 | begin |
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383 | MessageDlg(LNG_NO_UPDATE, mtInformation, [mbOk], 0); |
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384 | end; |
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385 | end; |
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386 | end; |
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387 | |||
388 | end. |