C.2.70 4D CAD 1.0d21

• (249) CADSetUserPrefs didn’t set all prefs. This has been fixed.
  
  
• (250) Fixed a bug where insert and raster objects with large scale factors couldn’t be reshaped at open grips handles.
  
  
• (251) Fixed a bug where resizing a polyline object at open grip handles sometimes produced strange results if the shift key was pressed later on.
  
  
• (252) Fixed a minor redraw bug for very small objects with large blips.
  
  
• (253) Worked around error kDXFBadTextParameters (= 19932) caused by a bad value (= 0.0) in some DXF files (group code 41 for TEXT objects).
  
  
• (254) Worked around a bug in MacOS 8.x which caused bad screen redraws on very small drag-scroll displacements (smaller than 4 pixels). The bug was apparent only if the monitor color depth was set to 256 colors (or 256 grays).
  
  
• (255) Implementation note − CADImportDXF also removes any unreferenced DXF blocks − those imported and those from previous imports.
  
  
• (256) CADOffscreen has been renamed CADNewOffscreen .
  
  
• (257) kCADModeSelect has been renamed kCADModeIntersect .
  
  
• (258) Mode kCADModeInsert has been replaced by a new mode kCADModeSpecialClick .
  
  
• (259) kCADZoomByCurrentMethod is new.
  
  
• (260) CADZoom has changed. With stepped zooming on, it always zooms such that the requested zoom area is within the actual zoom area.
  
  
• (261) CADGetOnEvent and CADSetOnEvent give you full control over event handling.

  Warning. If you do not declare parameters of callback procedures, 4D will crash.
  
  

• (262) Editing with Cut, Copy and Paste is implemented. The current (limited) implementation uses a private scrap, which implies:
  • only CAD objects can be cut, copied and pasted
  • there is no conversion to and from picture data
  • cut, copy and paste don’t work across applications.

  Note.

  • Option-Paste copies the clipboard to the current layer.
  • Instaling an event procedure (e.g. on the paste command) gives you full control over cut, copy and paste. A parameter of the event procedure identifies the clipboard as an offscreen area to which (nearly all) CAD commands can be applied.
  • Copy and cut of objects to the clipboard automatically copies attributes of the source area to the clipboard area, such as: CAD ref, settings, preferences, current zoom and scroll positions and (most important) arrays; the drawsize of the clipboard area is set to the drawbounds of the copied objects.
  • Paste automatically scales objects pasted to an area with a different unit.

  
  
  

• (263) CADGetRef and CADSetRef are new. They are helpful in identifying stored or pasted data.
  
  
• (264) CADCopyArrays is new.

  Note. Before copying, CADCopyArrays clears any arrays in the target area. This guarantees that arrays IDs of source and copied arrays are identical.
  
  

• (265) CADSetDisplay has three new parameters: theShowBorderFlag, theShowBoardFlag and theAutoResizeFlag.

  Note.

  • Application source code must be changed.
  • Setting theHorizontalScrollBarFlag to kCADFalse automatically disables drag-scrolling in horizontal direction.
  • Setting theVerticalScrollBarFlag to kCADFalse automatically disables drag-scrolling in vertical direction.

  
  
  

• (266) Scaling markings in block inserts is now on by default.