vdfsplat / AppSrc / cVirtualKeys.pkg @ 59
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1 | 19 | wil | //TH-Header |
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2 | //***************************************************************************************** |
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3 | // Copyright (c) 2004 Debug Project |
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4 | // All rights reserved. |
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5 | // |
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6 | // $FileName : cVirtualKeys package |
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7 | // $ProjectName : DebugAssistent |
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8 | // $Authors : Wil van Antwerpen |
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9 | // $Created : 27.07.2004 09:51 |
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10 | // $Type : (C)opyright 2004 Antwise Solutions |
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11 | // |
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12 | // Contents: A virtual keyboard that can be used to send keycharacters |
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13 | // to the windows object that currently has the focus. |
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14 | // This includes all characters defined in the dataflex characterset. |
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15 | // |
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16 | // Ex. |
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17 | // Procedure OnSetFocus |
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18 | // Send Key Of ghoVirtualKeyboard (Key_Ctrl+Key_End) |
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19 | // End_Procedure // OnSetFocus |
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20 | // |
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21 | // This overrides the default behaviour of a form to show it's |
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22 | // value selected into nonselected. |
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23 | // |
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24 | //***************************************************************************************** |
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25 | //TH-RevisionStart |
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26 | //TH-RevisionEnd |
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27 | |||
28 | |||
29 | Use cVirtualKeys.h // |
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30 | // |
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31 | // |
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32 | // Note: Some of the functionality of this package may also |
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33 | // have been declared as commands in the winbase.pkg file. |
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34 | // The problem with those commands is however that they are |
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35 | // undocumented and can change at any revision of VDF |
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36 | // |
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37 | // |
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38 | |||
39 | |||
40 | Integer ghoVirtualKeyboard |
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41 | |||
42 | Class cKeyList Is a List |
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43 | |||
44 | //Insert your Properties here. |
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45 | Procedure Construct_Object |
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46 | Forward Send Construct_Object |
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47 | Set Focus_Mode To nonfocusable |
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48 | Set Visible_State To False |
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49 | Set Skip_State To True |
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50 | End_Procedure // Construct_Object |
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51 | |||
52 | Function Find_DFKey String ElemStr Returns Integer |
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53 | Integer ndx retVal ArrMax |
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54 | String ArrVal |
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55 | Get item_count To ArrMax |
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56 | Move -1 To retVal |
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57 | Move 0 To ndx |
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58 | While (ndx < ArrMax And retVal = -1) |
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59 | Get message Item ndx To ArrVal |
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60 | If ArrVal Eq ElemStr Move ndx To retVal |
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61 | Calc (ndx + 1) To ndx |
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62 | End |
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63 | If (retVal <> -1) Begin |
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64 | Get Value Item retVal To retval |
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65 | End |
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66 | Function_Return retVal |
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67 | End_Function // Find_DFKey |
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68 | |||
69 | Function Find_VK String ElemStr Returns Integer |
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70 | Integer ndx retVal ArrMax |
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71 | String ArrVal |
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72 | Get item_count To ArrMax |
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73 | Move -1 To retVal |
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74 | Move 0 To ndx |
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75 | While (ndx < ArrMax And retVal = -1) |
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76 | Get array_value Item ndx To ArrVal |
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77 | If ArrVal Eq ElemStr Move ndx To retVal |
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78 | Calc (ndx + 1) To ndx |
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79 | End |
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80 | If (retVal <> -1) Begin |
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81 | Get message Item retVal To retval |
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82 | End |
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83 | Function_Return retVal |
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84 | End_Function // Find_VK |
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85 | |||
86 | // Maps a DF key character (KEY_...) to it's Virtual Key |
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87 | // counterpart |
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88 | Function MapDFToVirtual Integer iKey Returns Integer |
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89 | Integer iVK |
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90 | If ( ((iKey>=65) And (iKey<=90)) Or ((iKey>=48) And (iKey<=57))) Begin |
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91 | // A .. Z == 65 .. 90 |
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92 | // 0..9 == 48 .. 57 |
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93 | Move iKey To iVK |
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94 | End |
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95 | Else Begin |
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96 | Get Find_VK iKey To iVK |
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97 | End |
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98 | Function_Return iVK |
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99 | End_Function // MapDFToVirtual |
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100 | |||
101 | Function MapVirtualToDF Integer iVK Returns Integer |
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102 | End_Function // MapVirtualToDF |
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103 | |||
104 | Procedure FillKeyArray |
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105 | // message // value |
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106 | Send Add_Item KEY_ENTER VK_RETURN |
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107 | Send Add_Item KEY_TAB VK_TAB |
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108 | Send Add_Item KEY_BACK_SPACE VK_BACK |
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109 | Send Add_Item KEY_ESCAPE VK_ESCAPE |
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110 | Send Add_Item KEY_UP_ARROW VK_UP |
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111 | Send Add_Item KEY_DOWN_ARROW VK_DOWN |
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112 | Send Add_Item KEY_LEFT_ARROW VK_LEFT |
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113 | Send Add_Item KEY_RIGHT_ARROW VK_RIGHT |
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114 | Send Add_Item KEY_HOME VK_HOME |
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115 | Send Add_Item KEY_END VK_END |
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116 | Send Add_Item KEY_PGUP VK_PRIOR |
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117 | Send Add_Item KEY_PGDN VK_NEXT |
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118 | Send Add_Item KEY_INSERT VK_INSERT |
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119 | Send Add_Item KEY_DELETE VK_DELETE |
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120 | Send Add_Item KEY_F1 VK_F1 |
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121 | Send Add_Item KEY_F2 VK_F2 |
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122 | Send Add_Item KEY_F3 VK_F3 |
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123 | Send Add_Item KEY_F4 VK_F4 |
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124 | Send Add_Item KEY_F5 VK_F5 |
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125 | Send Add_Item KEY_F6 VK_F6 |
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126 | Send Add_Item KEY_F7 VK_F7 |
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127 | Send Add_Item KEY_F8 VK_F8 |
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128 | Send Add_Item KEY_F9 VK_F9 |
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129 | Send Add_Item KEY_F10 VK_F10 |
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130 | Send Add_Item KEY_F11 VK_F11 |
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131 | Send Add_Item KEY_F12 VK_F12 |
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132 | // KEY_A .. KEY_Z |
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133 | Send Add_Item KEY_SPACE VK_SPACE |
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134 | Send Add_Item KSPACE VK_SPACE |
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135 | // KEY_0 .. KEY_9 |
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136 | Send Add_Item KEY_PLUS VK_ADD |
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137 | Send Add_Item KEY_MINUS VK_SUBTRACT |
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138 | // Send Add_Item KEY_EQUAL |
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139 | // Send Add_Item KEY_BACK_SLASH |
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140 | Send Add_Item KEY_SLASH VK_DIVIDE |
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141 | Send Add_Item KHELP VK_HELP |
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142 | // |
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143 | // |
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144 | // Logical keys |
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145 | Send Add_Item KSAVE_RECORD VK_F2 |
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146 | // Send Add_Item KDELETE_RECORD Key_Shift+Key_F2 |
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147 | Send Add_Item KEXIT_FUNCTION VK_F3 |
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148 | // Send Add_Item KEXIT_APPLICATION Key_Alt+Key_F4 |
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149 | Send Add_Item KPROMPT VK_F4 |
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150 | // Send Add_Item KPRINT_SCREEN Key_Shift+Key_F4 |
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151 | Send Add_Item KCLEAR VK_F5 |
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152 | // Send Add_Item KREFRESH_SCREEN Key_Shift+Key_F5 |
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153 | Send Add_Item KSWITCH VK_F6 |
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154 | // Send Add_Item KSWITCH_BACK Key_Shift+Key_F6 |
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155 | Send Add_Item KFIND VK_F9 |
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156 | Send Add_Item KFIND_PREVIOUS VK_F7 |
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157 | Send Add_Item KFIND_NEXT VK_F8 |
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158 | // Send Add_Item KSUPER_FIND Key_Shift+Key_F9 |
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159 | // Send Add_Item KSUPER_FIND_PREVIOUS Key_Shift+Key_F7 |
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160 | // Send Add_Item KSUPER_FIND_NEXT Key_Shift+Key_F8 |
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161 | Send Add_Item KACTION_BAR VK_F10 |
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162 | Send Add_Item KENTER VK_RETURN |
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163 | Send Add_Item KUPARROW VK_UP |
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164 | Send Add_Item KDOWNARROW VK_DOWN |
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165 | Send Add_Item KLEFTARROW VK_LEFT |
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166 | Send Add_Item KRIGHTARROW VK_RIGHT |
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167 | Send Add_Item KSCROLL_BACK VK_PRIOR |
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168 | Send Add_Item KSCROLL_FORWARD VK_NEXT |
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169 | // Send Add_Item KSCROLL_LEFT |
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170 | // Send Add_Item KSCROLL_RIGHT |
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171 | Send Add_Item KBEGIN_OF_LINE VK_HOME |
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172 | Send Add_Item KEND_OF_LINE VK_END |
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173 | Send Add_Item KNEXT_ITEM VK_TAB |
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174 | // Send Add_Item KPREVIOUS_ITEM |
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175 | Send Add_Item KDELETE_CHARACTER VK_DELETE |
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176 | // Send Add_Item KERASE_END_OF_LINE |
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177 | Send Add_Item KBACK_SPACE VK_BACK |
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178 | Send Add_Item KCANCEL VK_ESCAPE |
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179 | // Send Add_Item KBEGIN_OF_PANEL |
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180 | // Send Add_Item KEND_OF_PANEL |
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181 | // Send Add_Item KBEGIN_OF_DATA |
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182 | // Send Add_Item KEND_OF_DATA |
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183 | // Send Add_Item KWORD_LEFT |
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184 | // Send Add_Item KWORD_RIGHT |
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185 | Send Add_Item KINSERT VK_INSERT |
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186 | // Send Add_Item KCLEAR_AND_RETURN |
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187 | // Send Add_Item KADD_MODE |
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188 | // Send Add_Item KPASTE |
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189 | // Send Add_Item KCOPY |
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190 | // Send Add_Item KCUT |
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191 | // Send Add_Item KCLEAR_ALL |
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192 | // Send Add_Item KMOUSE |
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193 | // Send Add_Item KMARK |
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194 | // Send Add_Item KZOOM |
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195 | // Send Add_Item KCLOSE_PANEL |
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196 | End_Procedure // FillKeyArray |
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197 | |||
198 | //Finish object construction |
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199 | Procedure End_Construct_Object |
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200 | Send FillKeyArray |
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201 | Forward Send End_Construct_Object |
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202 | End_Procedure // End_Construct_Object |
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203 | End_Class // cKeyList |
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204 | |||
205 | |||
206 | Class cVirtualKeyboard Is a Array |
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207 | |||
208 | //Insert your Properties here. |
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209 | Procedure Construct_Object |
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210 | Forward Send Construct_Object |
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211 | Property Integer piVirtualKeyCode Public 0 |
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212 | Property Integer piVirtualShiftState Public 0 |
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213 | Property Integer piTranslatedKeyCode Public 0 // private |
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214 | Property Integer piTranslatedShiftState Public 0 // private |
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215 | |||
216 | Object oKeyArray Is a cKeyList |
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217 | End_Object // KeyArray |
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218 | End_Procedure // Construct_Object |
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219 | |||
220 | |||
221 | // bVK is the virtual key code |
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222 | // bKeyUP is (true) if key UP or (false) for a key down |
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223 | // bKeyExtended must be true for non ascii keys |
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224 | // bKeyUP is optional |
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225 | // bKeyExtended is optional |
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226 | // Note: You will normally use the key procedure to send individual |
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227 | // keystrokes. |
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228 | Procedure KeyStroke Integer iVK Boolean bKeyUP Boolean bKeyExtended |
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229 | Integer iVoid |
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230 | DWord dwFlags |
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231 | Boolean bMyKeyUP |
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232 | Boolean bMyKeyExtended |
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233 | Move (False) To bMyKeyUP |
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234 | Move 0 To dwFlags |
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235 | If (Num_Arguments>=2) Begin |
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236 | Move bKeyUP To bMyKeyUP |
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237 | End |
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238 | If (Num_Arguments=3) Begin |
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239 | Move bKeyExtended To bMyKeyExtended |
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240 | End |
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241 | |||
242 | If (bMyKeyUP) Begin |
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243 | Move (dwFlags Ior KEYEVENTF_KEYUP) To dwFlags |
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244 | End |
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245 | If (bMyKeyExtended) Begin |
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246 | Move (dwFlags Ior KEYEVENTF_EXTENDEDKEY) To dwFlags |
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247 | End |
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248 | Move (fkbdevent(iVK,0,dwFlags,0)) To iVoid |
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249 | End_Procedure // KeyStroke |
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250 | |||
251 | |||
252 | // You can use this method to send dataflex keycombinations to |
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253 | // the object that currently has the focus |
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254 | // |
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255 | Procedure Key Integer iKeyValue |
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256 | Boolean bShift |
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257 | Boolean bControl |
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258 | Boolean bAlt |
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259 | Boolean bExt |
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260 | Integer iVK |
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261 | Move (iKeyValue Iand Key_Shift) To bShift |
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262 | Move (iKeyValue Iand Key_Ctrl) To bControl |
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263 | Move (iKeyValue Iand Key_Alt) To bAlt |
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264 | Move (bControl Or bAlt) To bExt |
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265 | If (bControl) Begin |
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266 | Move (iKeyValue - Key_Ctrl) To iKeyValue |
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267 | Send KeyStroke VK_CONTROL 0 bExt |
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268 | End |
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269 | If (bAlt) Begin |
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270 | Move (iKeyValue - Key_Alt) To iKeyValue |
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271 | Send KeyStroke VK_MENU 0 bExt |
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272 | End |
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273 | If (bShift) Begin |
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274 | Move (iKeyValue - Key_Shift) To iKeyValue |
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275 | Send KeyStroke VK_SHIFT 0 bExt |
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276 | End |
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277 | |||
278 | Get DFKeyToVirtual iKeyValue To iVK |
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279 | Send KeyStroke iVK 0 bExt // key down |
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280 | Send KeyStroke iVK 1 bExt // key up |
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281 | |||
282 | If (bShift) Begin |
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283 | Send KeyStroke VK_SHIFT 0 bExt |
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284 | End |
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285 | If (bAlt) Begin |
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286 | Send KeyStroke VK_MENU 0 bExt |
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287 | End |
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288 | If (bControl) Begin |
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289 | Send KeyStroke VK_CONTROL 1 bExt |
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290 | End |
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291 | End_Procedure // Key |
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292 | |||
293 | |||
294 | // Translates a character to the corresponding virtual-key code |
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295 | // And shift state For the current keyboard. |
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296 | // If successful you can get the data from the functions |
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297 | // translatedKeyCode |
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298 | // and |
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299 | // translatedShiftState |
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300 | // |
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301 | // Note: this only works for standard keyboards. |
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302 | Function TranslateKey Integer iKey Returns Boolean |
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303 | Integer bSuccess |
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304 | Short uResult |
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305 | Integer iVK |
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306 | Integer iShift |
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307 | |||
308 | Move (False) To bSuccess |
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309 | Move (fVkKeyScan(iKey)) To uResult |
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310 | Move (LOW_WORD_MASK Ior uResult) To iVK |
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311 | Move (HIGH_WORD_MASK Ior uResult) To iShift |
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312 | If ((iVK=-1) And (iShift=-1)) Begin |
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313 | Error 555 "Unable to translate key" |
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314 | Set piTranslatedKeyCode To 0 |
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315 | Set piTranslatedShiftState To 0 |
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316 | End |
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317 | Else Begin |
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318 | Move (true) To bSuccess |
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319 | Set piTranslatedKeyCode To iVK |
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320 | Set piTranslatedShiftState To iShift |
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321 | End |
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322 | Function_Return bSuccess |
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323 | End_Function // TranslateKey |
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324 | |||
325 | |||
326 | |||
327 | Function StringToKeyboard String sValue Returns Integer |
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328 | Boolean bErr |
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329 | Boolean bWasLastCharUC |
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330 | Boolean bIsCharUC |
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331 | Integer iPos |
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332 | Integer iChar |
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333 | Integer iLength |
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334 | String sChar |
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335 | Integer iVK |
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336 | Integer iShift |
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337 | |||
338 | Move (Length(sValue)) To iLength |
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339 | Move (False) To bErr |
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340 | Move (False) To bWasLastCharUC |
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341 | If (iLength>0) Begin |
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342 | For iPos From 1 To iLength |
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343 | Move (Mid(sValue,1,iPos)) To sChar |
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344 | Move (Ascii(sChar)) To iChar |
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345 | If (TranslateKey(Self,iChar)) Begin |
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346 | Get TranslatedKeyCode To iVK |
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347 | Get TranslatedShiftState To iShift |
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348 | End |
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349 | Else Begin |
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350 | Showln "Error translating key <" sChar "> :: " iChar |
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351 | End |
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352 | Move (Uppercase(sChar)=sChar) To bIsCharUC |
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353 | If ((bIsCharUC<>bWasLastCharUC) And (bIsCharUC)) Begin |
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354 | Send KeyStroke VK_SHIFT |
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355 | End |
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356 | Send KeyStroke iVK |
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357 | Send KeyStroke iVK (True) |
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358 | |||
359 | If ((bIsCharUC<>bWasLastCharUC) And (bIsCharUC)) Begin |
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360 | Send KeyStroke VK_SHIFT (True) |
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361 | End |
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362 | |||
363 | Move bIsCharUC To bWasLastCharUC |
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364 | Loop |
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365 | End |
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366 | Function_Return (bErr) |
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367 | End_Function // StringToKeyboard |
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368 | |||
369 | // Use the method Write to write a string to the virtual keyboard |
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370 | // You can add multiple parameters |
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371 | // |
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372 | Procedure Write |
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373 | Integer iVoid |
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374 | Integer iArg |
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375 | String sValue |
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376 | For iArg From 1 To Num_Arguments |
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377 | Movestr iArg& To sValue |
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378 | Get StringToKeyboard sValue To iVoid |
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379 | Loop |
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380 | End_Procedure // Write |
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381 | |||
382 | // Private |
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383 | // This function translates an unshifted DF key (no Shift/control/Alt) |
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384 | // into its scancode equivalent. |
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385 | // |
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386 | Function DFKeyToVirtual Integer iKey Returns Integer |
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387 | Integer iVK |
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388 | Get MapDFToVirtual Of (oKeyArray(Self)) iKey To iVK |
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389 | Function_Return iVK |
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390 | End_Function // DFKeyToVirtual |
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391 | |||
392 | |||
393 | // private |
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394 | Function TranslatedKeyCode Returns Integer |
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395 | Function_Return (piTranslatedKeyCode(Self)) |
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396 | End_Function // TranslatedKeyCode |
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397 | |||
398 | // private |
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399 | Function TranslatedShiftState Returns Integer |
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400 | Function_Return (piTranslatedShiftState(Self)) |
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401 | End_Function // TranslatedShiftState |
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402 | |||
403 | |||
404 | |||
405 | //Finish object construction |
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406 | Procedure End_Construct_Object |
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407 | Forward Send End_Construct_Object |
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408 | End_Procedure // End_Construct_Object |
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409 | End_Class // cVirtualKeyboard |
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410 | |||
411 | |||
412 | Object oVirtualKeyboard Is a cVirtualKeyboard |
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413 | Move Self To ghoVirtualKeyboard |
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414 | End_Object // oVirtualKeyboard |