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-
- QuickDraw
- ================================================================
-
- What follows is a list of all valid QuickDraw calls. They are
- listed in groups that perform similar functions. Some notes
- follow the listing.
-
-
- Main Calls: (Explained below)
-
- PROCEDURE InitDraw(width, height : integer);
- PROCEDURE InitDraw4(width, height, x, y : integer);
- PROCEDURE ClearAll;
- PROCEDURE GetDrawingRect(VAR sizeOfWindow : Rect);
- PROCEDURE DrawGrid(spacing : integer);
- PROCEDURE QuitDraw;
-
-
- Calculation Calls:
-
- PROCEDURE SetPt(VAR pointToSet : Point; x, y : integer);
- PROCEDURE SetRect(VAR rectToSet : Rect; left, top, right, bot : integer);
- PROCEDURE OffsetRect(VAR rectToOffset : Rect; dh, dv : integer);
- PROCEDURE InsetRect(VAR rectToInset : Rect; dh, dv : integer);
- FUNCTION PtInRect(checkPoint : Point; checkRect : Rect): boolean;
-
-
- Color Calls:
-
- PROCEDURE SetColor(colorToSet : integer);
- Valid Colors: whiteColor, blackColor, redColor, greenColor,
- blueColor, magentaColor, cyanColor, yellowColor
- Example: SetColor( whiteColor );
- PROCEDURE PenPat(pattern : integer);
- Valid Patterns: gray, ltGray, dkGray, black
- Other Patterns: white
- Note: NEVER use white.
- Example: PenPat( gray );
-
-
- Miscellaneous Calls:
-
- FUNCTION Random : integer;
- PROCEDURE Randomize(seed : integer);
- PROCEDURE WaitDraw(seconds : integer);
-
-
- Query Calls:
-
- FUNCTION Button : boolean;
- PROCEDURE GetMouse(VAR x, y : integer)
- PROCEDURE GetMousePt(VAR pt : Point)
-
-
- Setting Calls:
-
- PROCEDURE SetLineWidth(lineWidth : integer);
- PROCEDURE GetLineWidth(VAR lineWidth : integer);
- PROCEDURE SetLineStyle(style : integer);
- PROCEDURE GetLineStyle(VAR : integer);
- Valid Line Styles: LINE_STYLE__SOLID, LINE_STYLE__ON_OFF_DASH,
- LINE_STYLE__DOUBLE_DASH
- Example: SetLineStyle( LINE_STYLE__SOLID );
-
- PROCEDURE PenMode(mode : integer);
- PROCEDURE GetPenMode(VAR mode : integer);
- Valid Pen Modes: patCopy, patXor Example: PenMode( patXor );
-
- PROCEDURE SetFont(font : integer);
- PROCEDURE GetFont(VAR font : integer);
- Valid Fonts: FONT__SMALL, FONT__MEDIUM, FONT__LARGE, FONT__LARGEST
- Example: SetFont( FONT__LARGE );
-
-
- Shape Calls:
-
- PROCEDURE DrawLine(p1, p2 : Point);
- PROCEDURE EraseLine(p1, p2 : Point);
- PROCEDURE FrameRect(rectToFrame : Rect);
- PROCEDURE PaintRect(rectToPaint : Rect);
- PROCEDURE InvertRect(rectToInvert : Rect);
- PROCEDURE EraseRect(rectToErase : Rect);
- PROCEDURE FrameOval(ovalToFrame : Rect);
- PROCEDURE PaintOval(ovalToPaint : Rect);
- PROCEDURE InvertOval(ovalToInvert : Rect);
- PROCEDURE EraseOval(ovalToErase : Rect);
- PROCEDURE FrameArc(arcToFrame: Rect; startAng, angSize : integer);
- PROCEDURE PaintArc(arcToPaint: Rect; startAng, angSize : integer);
- PROCEDURE InvertArc(arcToInvert: Rect; startAng, angSize : integer);
- PROCEDURE EraseArc(arcToErase: Rect; startAng, angSize : integer);
- PROCEDURE PaintCircle(x, y, radius : inteer);
- PROCEDURE FrameCircle(x, y, radius : inteer);
- PROCEDURE EraseCircle(x, y, radius : inteer);
-
-
- Line Calls:
-
- PROCEDURE MoveTo(x, y : integer);
- PROCEDURE LineTo(x, y : integer);
-
-
- Text Calls:
-
- PROCEDURE DrawString(str : string; x, y : integer);
- PROCEDURE QueryStringSize(str : string; VAR width, height : integer);
-
-
- Initialization Notes:
-
- InitDraw creates the QuickDraw Window in which all of the other
- commands act. If width and height are specified as 0 (zero),
- the size of the window will be specified by the user.
- ClearAll clears the QuickDraw display.
- DrawGrid draws a grid of specified spacing. This is useful for
- laying out graphics in the window.
- GetDrawingRect returns the size of the QuickDraw Window as a rect.
- This is useful in conjunction with the zero height/width option
- of InitDraw.
- QuitDraw closes the display created by the InitDraw call.
-
-
- Possible Errors:
-
- 1) Call QuickDraw routines without InitDraw (initilizing).
- 2) Call QuitDraw when no InitDraw precedes it.
- 3) Try to REinitilize QuickDraw. (InitDraw in succession)
- 4) Try to use/create a Rect that is illegal.
- 5) Send bad paramaters to the Set procedures.
-
-
- See Also: Pascal Keyword Help
-