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3 | daniel-mar | 1 | unit BrowseFolder platform; |
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3 | {.$DEFINE USE_FILECTRL_FUNCTIONS} // not recommended! |
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4 | |||
5 | {$DEFINE USE_FORMS} // important |
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6 | |||
7 | interface |
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8 | |||
9 | uses |
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10 | Windows, SysUtils, ShlObj, ActiveX |
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11 | {$IFDEF USE_FILECTRL_FUNCTIONS}, FileCtrl{$ENDIF} |
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12 | {$IFDEF USE_FORMS}, Forms{$ENDIF}; |
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13 | |||
14 | function MySelectDirectory(AMsg: string): string; |
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15 | |||
16 | implementation |
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17 | |||
18 | {$IFNDEF USE_FILECTRL_FUNCTIONS} |
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19 | |||
20 | { |
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21 | This code shows the SelectDirectory dialog with additional expansions: |
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22 | - an edit box, where the user can type the path name, |
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23 | - also files can appear in the list, |
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24 | - a button to create new directories. |
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25 | |||
26 | |||
27 | Dieser Code zeigt den SelectDirectory-Dialog mit zusätzlichen Erweiterungen: |
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28 | - eine Edit-Box, wo der Benutzer den Verzeichnisnamen eingeben kann, |
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29 | - auch Dateien können in der Liste angezeigt werden, |
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30 | - eine Schaltfläche zum Erstellen neuer Verzeichnisse. |
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31 | |||
32 | |||
33 | Ref: http://www.swissdelphicenter.ch/de/showcode.php?id=1802 |
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34 | MODIFIED for AutoSFX! |
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35 | } |
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36 | |||
37 | function AdvSelectDirectory(const Caption: string; const Root: WideString; |
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38 | var Directory: string; EditBox: Boolean = False; ShowFiles: Boolean = False; |
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39 | AllowCreateDirs: Boolean = True): Boolean; |
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40 | // callback function that is called when the dialog has been initialized |
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41 | //or a new directory has been selected |
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42 | |||
43 | // Callback-Funktion, die aufgerufen wird, wenn der Dialog initialisiert oder |
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44 | //ein neues Verzeichnis selektiert wurde |
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45 | function SelectDirCB(Wnd: HWND; uMsg: UINT; lParam, lpData: lParam): Integer; |
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46 | stdcall; |
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47 | var |
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48 | PathName: array[0..MAX_PATH] of Char; |
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49 | begin |
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50 | case uMsg of |
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51 | // BFFM_INITIALIZED: SendMessage(Wnd, BFFM_SETSELECTION, Ord(True), Integer(lpData)); |
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52 | // include the following comment into your code if you want to react on the |
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53 | //event that is called when a new directory has been selected |
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54 | // binde den folgenden Kommentar in deinen Code ein, wenn du auf das Ereignis |
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55 | //reagieren willst, das aufgerufen wird, wenn ein neues Verzeichnis selektiert wurde |
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56 | BFFM_SELCHANGED: |
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57 | begin |
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58 | SHGetPathFromIDList(PItemIDList(lParam), @PathName); |
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59 | |||
60 | if PathName = '' then |
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61 | begin |
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62 | SendMessage(Wnd, BFFM_ENABLEOK, 0, 0); |
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63 | end; |
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64 | |||
65 | // the directory "PathName" has been selected |
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66 | // das Verzeichnis "PathName" wurde selektiert |
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67 | end; |
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68 | end; |
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69 | Result := 0; |
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70 | end; |
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71 | var |
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72 | {$IFDEF USE_FORMS} |
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73 | WindowList: Pointer; |
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74 | {$ENDIF} |
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75 | BrowseInfo: TBrowseInfo; |
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76 | Buffer: PChar; |
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77 | RootItemIDList, ItemIDList: PItemIDList; |
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78 | ShellMalloc: IMalloc; |
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79 | IDesktopFolder: IShellFolder; |
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80 | Eaten, Flags: LongWord; |
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81 | const |
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82 | // necessary for some of the additional expansions |
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83 | // notwendig für einige der zusätzlichen Erweiterungen |
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84 | BIF_USENEWUI = $0040; |
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85 | BIF_NOCREATEDIRS = $0200; |
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86 | begin |
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87 | Result := False; |
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88 | if not DirectoryExists(Directory) then |
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89 | Directory := ''; |
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90 | FillChar(BrowseInfo, SizeOf(BrowseInfo), 0); |
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91 | if (ShGetMalloc(ShellMalloc) = S_OK) and (ShellMalloc <> nil) then |
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92 | begin |
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93 | Buffer := ShellMalloc.Alloc(MAX_PATH); |
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94 | try |
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95 | RootItemIDList := nil; |
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96 | if Root <> '' then |
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97 | begin |
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98 | SHGetDesktopFolder(IDesktopFolder); |
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99 | IDesktopFolder.ParseDisplayName({$IFDEF USE_FORMS}Application.Handle{$ELSE}0{$ENDIF}, nil, |
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100 | POleStr(Root), Eaten, RootItemIDList, Flags); |
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101 | end; |
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102 | OleInitialize(nil); |
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103 | with BrowseInfo do |
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104 | begin |
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105 | hwndOwner := {$IFDEF USE_FORMS}Application.Handle{$ELSE}0{$ENDIF}; |
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106 | pidlRoot := RootItemIDList; |
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107 | pszDisplayName := Buffer; |
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108 | lpszTitle := PChar(Caption); |
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109 | // defines how the dialog will appear: |
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110 | // legt fest, wie der Dialog erscheint: |
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111 | ulFlags := BIF_RETURNONLYFSDIRS or BIF_USENEWUI or |
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112 | BIF_EDITBOX * Ord(EditBox) or BIF_BROWSEINCLUDEFILES * Ord(ShowFiles) or |
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113 | BIF_NOCREATEDIRS * Ord(not AllowCreateDirs); |
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114 | lpfn := @SelectDirCB; |
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115 | if Directory <> '' then |
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116 | lParam := Integer(PChar(Directory)); |
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117 | end; |
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118 | {$IFDEF USE_FORMS} |
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119 | WindowList := DisableTaskWindows(0); |
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120 | {$ENDIF} |
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121 | try |
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122 | ItemIDList := ShBrowseForFolder(BrowseInfo); |
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123 | finally |
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124 | {$IFDEF USE_FORMS} |
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125 | EnableTaskWindows(WindowList); |
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126 | {$ENDIF} |
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127 | end; |
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128 | Result := ItemIDList <> nil; |
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129 | if Result then |
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130 | begin |
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131 | ShGetPathFromIDList(ItemIDList, Buffer); |
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132 | ShellMalloc.Free(ItemIDList); |
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133 | Directory := Buffer; |
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134 | end; |
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135 | finally |
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136 | ShellMalloc.Free(Buffer); |
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137 | end; |
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138 | end; |
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139 | end; |
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140 | |||
141 | {$ENDIF} |
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142 | |||
143 | function MySelectDirectory(AMsg: string): string; |
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144 | begin |
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145 | {$IFNDEF USE_FILECTRL_FUNCTIONS} |
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146 | if not AdvSelectDirectory(AMsg, '', result, False, False, True) then |
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147 | begin |
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148 | result := ''; |
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149 | Exit; |
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150 | end; |
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151 | {$ELSE} |
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152 | // Nicht so gut: "Arbeitsplatz" etc nicht ausgegraut |
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153 | if not SelectDirectory(AMsg, '', result, [sdNewUi, sdNewFolder]) then |
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154 | begin |
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155 | result := ''; |
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156 | Exit; |
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157 | end; |
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158 | {$ENDIF} |
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159 | |||
160 | // Optional |
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161 | result := IncludeTrailingPathDelimiter(result); |
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162 | result := ExpandUNCFileName(result); |
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163 | end; |
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164 | |||
165 | end. |