WindowGradient
Script function

world.WindowGradient

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Type

Method

Summary

Draws a gradient in a rectangle

Prototype

long WindowGradient(BSTR Name, long Left, long Top, long Right, long Bottom, long StartColour, long EndColour, short Mode);

DOC_data_types View list of data type meanings

Description

Draws a gradient - that is a rectangle that gradually changes from the start colour to the end colour.

Note that changes to miniwindows will not become visible until the output window is redrawn. This happens when new (visible) lines arrive from the MUD, or if you call WindowShow, or Redraw.

Parameters:

Name - the name of an existing miniwindow.

Left, Top, Right, Bottom - describes the rectangle to draw into.

StartColour - the colour to start the gradient (or, see below if you are using Mode 3)

EndColour - the colour to end the gradient.

Mode - the drawing direction. One of:

1 - horizontal - left to right

2 - vertical - top to bottom

3 - make a texture by xoring the x and y columns sequentially.

For Mode 3 (make a texture) - the StartColour has 3 components, red multiplier, green multiplier, blue multiplier. These are multiplied by the generated colour to give special effects to the generated texture. For example: 0x010203 would multiply the blue component by 1, the green component by 2 and the red component by 3.


For more information, see:

http://www.gammon.com.au/mushclient/mw_shapes.htm

Lua example

WindowGradient (win, 20, 110, 160, 180, 
                ColourNameToRGB ("red"), 
                ColourNameToRGB ("yellow"), 
                1)  -- left to right

WindowGradient (win, 20, 20, 160, 100, 
                ColourNameToRGB ("dodgerblue"), 
                ColourNameToRGB ("lightsalmon"), 
                2)  -- top to bottom

WindowGradient (win, 0, 0, 256, 256, 
                0x010203, 
                0,
                3)  -- XOR texture


Return value

eNoSuchWindow - no such miniwindow (either source or destination)

eUnknownOption - mode not one of the modes specified above

eOK - completed OK


DOC_errors View list of return code meanings

See Also ...

Topic

DOC_miniwindows Mini Windows

Functions

FNC_GetDeviceCaps GetDeviceCaps (Gets screen device capabilities)
FNC_SetCursor SetCursor (Changes the shape of the mouse cursor)
FNC_TextRectangle TextRectangle (Specifies the size of the rectangle in which text is displayed in the output window.)
FNC_WindowAddHotspot WindowAddHotspot (Adds a hotspot to a miniwindow)
FNC_WindowArc WindowArc (Draws an arc in a miniwindow)
FNC_WindowBezier WindowBezier (Draws a Bézier curve in a miniwindow)
FNC_WindowBlendImage WindowBlendImage (Blends an image into a miniwindow, using a specified blending mode)
FNC_WindowCircleOp WindowCircleOp (Draws ellipses, filled rectangles, round rectangles, chords, pies in a miniwindow)
FNC_WindowCreate WindowCreate (Creates a miniwindow)
FNC_WindowCreateImage WindowCreateImage (Creates an image in a miniwindow)
FNC_WindowDelete WindowDelete (Deletes a miniwindow)
FNC_WindowDeleteAllHotspots WindowDeleteAllHotspots (Deletes all hotspots from a miniwindow)
FNC_WindowDeleteHotspot WindowDeleteHotspot (Deletes a hotspot from a miniwindow)
FNC_WindowDragHandler WindowDragHandler (Adds a drag handler to a miniwindow hotspot)
FNC_WindowDrawImage WindowDrawImage (Draws an image into a miniwindow)
FNC_WindowDrawImageAlpha WindowDrawImageAlpha (Draws an image into a miniwindow respecting the alpha channel)
FNC_WindowFilter WindowFilter (Performs a filtering operation over part of the miniwindow.)
FNC_WindowFont WindowFont (Loads a font into a miniwindow)
FNC_WindowFontInfo WindowFontInfo (Returns information about a font)
FNC_WindowFontList WindowFontList (Lists all fonts loaded into a miniwindow)
FNC_WindowGetPixel WindowGetPixel (Gets the colour of a single pixel in a miniwindow)
FNC_WindowHotspotInfo WindowHotspotInfo (Returns information about a hotspot)
FNC_WindowHotspotList WindowHotspotList (Lists all hotspots installed into a miniwindow)
FNC_WindowHotspotTooltip WindowHotspotTooltip (Changes the tooltip text for a hotspot in a miniwindow)
FNC_WindowImageFromWindow WindowImageFromWindow (Creates an image from another miniwindow)
FNC_WindowImageInfo WindowImageInfo (Returns information about an image)
FNC_WindowImageList WindowImageList (Lists all images installed into a miniwindow)
FNC_WindowImageOp WindowImageOp (Draws an ellipse, rectangle or round rectangle, filled with an image)
FNC_WindowInfo WindowInfo (Returns information about a miniwindow)
FNC_WindowLine WindowLine (Draws a line in a miniwindow)
FNC_WindowList WindowList (Lists all miniwindows)
FNC_WindowLoadImage WindowLoadImage (Loads an image into a miniwindow from a disk file)
FNC_WindowMenu WindowMenu (Creates a pop-up menu inside a miniwindow)
FNC_WindowMergeImageAlpha WindowMergeImageAlpha (Merges an image into a miniwindow based on an alpha mask)
FNC_WindowPolygon WindowPolygon (Draws a polygon in a miniwindow)
FNC_WindowPosition WindowPosition (Moves a miniwindow)
FNC_WindowRectOp WindowRectOp (Draws a rectangle in a miniwindow)
FNC_WindowSetPixel WindowSetPixel (Sets a single pixel in a miniwindow to the specified colour)
FNC_WindowShow WindowShow (Shows or hides a miniwindow)
FNC_WindowText WindowText (Draws text into a miniwindow)
FNC_WindowTextWidth WindowTextWidth (Calculates the width of text in a miniwindow)
FNC_WindowWrite WindowWrite (Writes the contents of a miniwindow to disk as a graphics file)

(Help topic: function=WindowGradient)

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