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Mnemonic Processing |
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To trap and handle key mnemonics generated from your application, an ODC Server can contain a property 'Mnemonics that contains the Object ID for a mnemonic processor. The system invokes this mnemonic processor when encountering any of the following mnemonics:
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Mnemonic |
Method Call |
Description |
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'BEEP' |
'Beep(sound$) |
Play sound. |
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'CAPTION' |
'Caption(ttl$) |
Set caption line text. |
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'COLOUR' |
'Colour(clr$) |
Set foreground colour. |
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'_COLOUR' |
'_Colour(clr$) |
Set background colour. |
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'CS' |
'ClearScreen( ) |
Clear the screen and delete all graphics. |
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'DO' |
'DropObjects(c,l,w,h) |
Drop all objects within specified area. This mnemonic is generally sent when change folder tabs. |
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'FONT' |
'Font(fnt$, sz, atr$, angle) |
Set current font. |
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'FRAME' |
'Frame(x1,y1,x2,y2,wide,ttl$) |
Create a frame. |
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'IMAGE'(n$) |
'Image(n$) |
Set current image name. |
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'IMAGE'(DELETE n$) |
'ImageDelete(n$) |
Delete name image. |
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'IMAGE'(DISABLE n$) |
'ImageDisable(n$) |
Disable/hide image. |
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'IMAGE'(ENABLE n$) |
'ImageEnable(n$) |
Enable/show image. |
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'OPTION' |
'Option(opt$, value$) |
Set option value. |
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'PICTURE' |
'Picture(x1,y1,x2,y2,path$,mode) |
Display a picture. |
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'TEXT' |
'Text(x1,y1,x2,y2.txt$,atr$) |
Display text. If only one x/y coordinate is given, x2 and y2 will be zero. |
When processing any of the above methods, a non-zero return value indicates that the mnemonic should not be sent to the terminal.
A return value of zero or no method present causes the normal mnemonic processing to take place.