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1
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DEFINE VARIABLE whandle1 AS HANDLE.
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2
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DEFINE VARIABLE whandle2 AS HANDLE.
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3
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DEFINE VARIABLE whandle3 AS HANDLE.
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4
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DEFINE BUTTON bviewp LABEL "VIEW".
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5
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DEFINE BUTTON bviewc LABEL "VIEW".
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6
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DEFINE BUTTON bviewgc LABEL "VIEW".
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7
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DEFINE BUTTON bhidep LABEL "HIDE".
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8
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DEFINE BUTTON bhidec LABEL "HIDE".
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9
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DEFINE BUTTON bhidegc LABEL "HIDE".
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10
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DEFINE BUTTON bhiddp LABEL "HIDDEN".
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11
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DEFINE BUTTON bhiddc LABEL "HIDDEN".
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12
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DEFINE BUTTON bhiddgc LABEL "HIDDEN".
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13
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14
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DEFINE FRAME alpha SKIP
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15
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"Parent" AT 11 "Child" AT 37 "Grand Child" AT 64 SKIP
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16
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bviewp AT 11 bviewc AT 37 bviewgc AT 64 SKIP(.5)
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17
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bhidep AT 11 bhidec AT 37 bhidegc AT 64 SKIP(.5)
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18
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bhiddp AT 11 bhiddc AT 37 bhiddgc AT 64
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19
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WITH SIZE 80 BY 6.
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20
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21
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CREATE WINDOW whandle1
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22
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ASSIGN TITLE = "Parent Window"
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23
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HEIGHT-CHARS = 5
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24
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WIDTH-CHARS = 27
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25
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PARENT = CURRENT-WINDOW.
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26
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27
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CREATE WINDOW whandle2
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28
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ASSIGN TITLE = "Child Window"
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29
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HEIGHT-CHARS = 5
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30
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WIDTH-CHARS = 27
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31
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PARENT = whandle1.
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32
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33
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CREATE WINDOW whandle3
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34
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ASSIGN TITLE = "Grand Child Window"
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35
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HEIGHT-CHARS = 5
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36
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WIDTH-CHARS = 27
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37
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PARENT = whandle2.
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38
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39
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ON CHOOSE OF bviewp DO: /* View Parent */
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40
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VIEW whandle1.
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41
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RUN win-status IN THIS-PROCEDURE.
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42
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END.
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43
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44
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ON CHOOSE OF bhidep DO: /* Hide Parent */
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45
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HIDE whandle1.
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46
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RUN win-status IN THIS-PROCEDURE.
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47
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END.
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48
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49
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ON CHOOSE OF bhiddp DO: /* Hidden Parent */
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50
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whandle1:HIDDEN = TRUE.
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51
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RUN win-status IN THIS-PROCEDURE.
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52
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END.
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53
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54
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ON CHOOSE OF bviewc DO: /* View Child */
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55
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VIEW whandle2.
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56
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RUN win-status IN THIS-PROCEDURE.
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57
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END.
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58
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59
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ON CHOOSE OF bhidec DO: /* Hide Child */
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60
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HIDE whandle2.
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61
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RUN win-status IN THIS-PROCEDURE.
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62
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END.
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63
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64
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ON CHOOSE OF bhiddc DO: /* Hidden Child */
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65
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whandle2:HIDDEN = TRUE.
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66
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RUN win-status IN THIS-PROCEDURE.
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67
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END.
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68
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69
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ON CHOOSE OF bviewgc DO: /* View Grand Child */
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70
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VIEW whandle3.
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71
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RUN win-status IN THIS-PROCEDURE.
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72
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END.
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73
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74
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ON CHOOSE OF bhidegc DO: /* Hide Grand Child */
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75
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HIDE whandle3.
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76
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RUN win-status IN THIS-PROCEDURE.
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77
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END.
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78
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79
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ON CHOOSE OF bhiddgc DO: /* Hidden Grand Child */
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80
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whandle3:HIDDEN = TRUE.
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81
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RUN win-status IN THIS-PROCEDURE.
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82
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END.
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83
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84
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CURRENT-WINDOW:TITLE = "Control Panel".
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85
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CURRENT-WINDOW:HEIGHT-CHARS = 6.
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86
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ENABLE ALL IN WINDOW CURRENT-WINDOW WITH FRAME alpha.
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87
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WAIT-FOR WINDOW-CLOSE OF CURRENT-WINDOW.
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88
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89
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PROCEDURE win-status:
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90
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MESSAGE "Parent HIDDEN:" whandle1:HIDDEN
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91
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"/ Parent VISIBLE:" whandle1:VISIBLE
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92
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"/ Child HIDDEN:" whandle2:HIDDEN
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93
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"/ Child VISIBLE:" whandle2:VISIBLE.
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94
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95
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MESSAGE "Grand Child HIDDEN:" whandle3:HIDDEN
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96
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"/ Grand Child VISIBLE:" whandle3:VISIBLE.
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97
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END.
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