IntelÂ® Fortran Libraries Reference

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2 Intel Fortran Libraries ReferenceLarger numbers correspond to stronger color intensity with binary 1111111 (hex FF) the maximumfor each of the three components. For example, Z'0000FF' yields full-intensity red, Z'00FF00'full-intensity green, Z'FF000' full-intensity blue, and Z'FFFFFF' full-intensity for all three,resulting in bright white.GETCOLORRGB returns the RGB color value of graphics over the background color (used bygraphics functions such as ARC, ELLIPSE, and FLOODFILLRGB), set with SETCOLORRGB.GETBKCOLORRGB returns the RGB color value of the current background for both text andgraphics, set with SETBKCOLORRGB. GETTEXTCOLORRGB returns the RGB color value oftext over the background color (used by text functions such as OUTTEXT, WRITE, and PRINT),set with SETTEXTCOLORRGB.SETCOLORRGB (and the other RGB color selection functions SETBKCOLORRGB andSETTEXTCOLORRGB) sets the color to a value chosen from the entire available range. Thenon-RGB color functions (SETCOLOR, SETBKCOLOR, and SETTEXTCOLOR) use colorindexes rather than true color values. If you use color indexes, you are restricted to the colorsavailable in the palette, at most 256. Some display adapters (SVGA and true color) are capable ofcreating 262,144 (256K) colors or more. To access any available color, you need to specify anexplicit RGB value with an RGB color function, rather than a palette index with a non-RGB colorfunction.CompatibilitySTANDARD GRAPHICS QUICKWIN GRAPHICS LIBSee Also: “GETBKCOLORRGB”, “GETTEXTCOLORRGB”, “SETCOLORRGB”,“GETCOLOR”Example! Build as a QuickWin or Standard Graphics App.USE IFQWININTEGER(2) numfontsINTEGER(4) fore, oldcolornumfonts = INITIALIZEFONTS ( )oldcolor = SETCOLORRGB(Z'FF')! set graphics! color to redfore = GETCOLORRGB()oldcolor = SETBKCOLORRGB(fore) ! set background! to graphics colorCALL CLEARSCREEN($GCLEARSCREEN)oldcolor = SETCOLORRGB (Z'FF0000') ! set graphics! color to blueCALL OUTGTEXT("hello, world")2-106
Descriptions of the Library Routines 2ENDGETCONTROLFPQQPortability Subroutine: Returns the floating-point processor control word.Module: USE IFPORTSyntaxCALL GETCONTROLFPQQ (controlword)controlword(Output) INTEGER(2). Floating-point processor control word.The floating-point control word is a bit flag that controls various modes of the floating-pointcoprocessor.The control word can be any of the following constants (defined in IFPORT.F90):Parameter name Hex value DescriptionFPCW$MCW_IC Z'1000' Infinity control maskFPCW$AFFINE Z'1000' Affine infinityFPCW$PROJECTIVE Z'0000' Projective infinityFPCW$MCW_PC Z'0300' Precision control maskFPCW$64 Z'0300' 64-bit precisionFPCW$53 Z'0200' 53-bit precisionFPCW$24 Z'0000' 24-bit precisionFPCW$MCW_RC Z'0C00' Rounding control maskFPCW$CHOP Z'0C00' TruncateFPCW$UP Z'0800' Round upFPCW$DOWN Z'0400' Round downFPCW$NEAR Z'0000' Round to nearestFPCW$MCW_EM Z'003F' Exception maskFPCW$INVALID Z'0001' Allow invalid numbersFPCW$DENORMAL Z'0002' Allow denormals (very small numbers)FPCW$ZERODIVIDE Z'0004' Allow divide by zeroFPCW$OVERFLOW Z'0008' Allow overflowFPCW$UNDERFLOW Z'0010' Allow underflowFPCW$INEXACT Z'0020' Allow inexact precision2-107
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