c語言圖形編程(三、繪圖函數-)(C language graphics programming (three, drawing function -)).doc

c語言圖形編程(三、繪圖函數-01)(C language graphics programming (three, drawing function -01))A screen and a viewport setting and clear function

Setviewport (36.) set the viewport graphic function

Clearviewport (37.) clear graphical viewport function

38. cleardevice () clear screen function

Getviewsettings (39.) gets the graphics view settings function

Two, palette and color function

40. setpalette () set palette function

41. setallpalette () sets the entire palette function

Setting the background color function for 42. setbackcolor ()

43. SetColor () set the color function

44. GetBkColor () returns the background color function

45. getcolor () returns the current drawing color

46. getmaxcolor () returns the maximum color value function

47. GetPalette () to obtain palette function

48. getpalettesize () returns the palette size function

49. getdefaultpalette () to obtain the default palette function

Three, screen position function

50. getmaxx () returns the maximum X coordinate function

51. getmaxy () returns the maximum y coordinate function

52. geTx () returns the X coordinate function

53. gety () returns the Y coordinate function

54. moveto () function

55. moverel () relative moving function

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Borland C++ provides a comprehensive set of graphical functions, the section describes the functions related to graphics display, this section describes the drawing function, the next section will introduce its graphics text function.

The general drawing, we must first clear the screen and set the graphics viewport, set the drawing color, and then in a location on the screen to draw points or lines or curves. The functions with these functions are given below.

A screen and a viewport setting and clear function

Setviewport (36.) set the viewport graphic function

Function: function (setviewport) to set the current graphical viewport.

Usage: the function calls are void setviewport (int left, int top, int right, int bottom, int clip);

Descr

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