The TGadgetInfo structure contains information about the display on which the gadget needs to render itself
Source position: intuition.pas line 1916
type TGadgetInfo = record |
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gi_Screen: PScreen; |
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ScreenPtr |
gi_Window: PWindow; |
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nil for screen gadgets |
gi_Requester: PRequester; |
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nil IF not GTYP_REQGADGET |
gi_RastPort: PRastPort; |
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Rendering information: don't use these without cloning/locking. Official way is to call ObtainGIRPort() |
gi_Layer: PLayer; |
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LayerPtr |
gi_Domain: TIBox; |
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Copy of dimensions of screen/window/g00/req(/group) that gadget resides in. |
gi_Pens: record |
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DetailPen: Byte; |
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BlockPen: Byte; |
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end; |
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gi_DrInfo: PDrawInfo; |
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the Detail and Block pens in gi_DrInfo^.dri_Pens[] are for the screen. Use the above for window-sensitive colors. |
gi_Reserved: array [0..5] of LongWord; |
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end; |
All the fields in this structure are read only.
Although this structure contains a pointer to the gadget's RastPort structure, applications should not use it for rendering. Instead, use the intuition.library function ObtainGIRPort() to obtain a copy of the GadgetInfo's RastPort. When the gadget is finished with this RastPort, it should call ReleaseGIRPort() to relinquish the RastPort.
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Message parameter passed for GM_HITTEST or GM_HELPTEST |
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Message parameter passed for GM_RENDER |
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Message parameter passed for GM_GOACTIVE or GM_HANDLEINPUT |
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Message parameter passed for GM_GOINACTIVE |
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Message parameter passed for GM_LAYOUT |
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String gadget message |
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Calculate gadget-relative mouse position. |
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Set up a RastPort for a custom gadget. |