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Script function


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Draws a gradient in a rectangle


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

View list of data type meanings


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.


WindowName - 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:


Available in MUSHclient version 4.35 onwards.

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, 
                3)  -- XOR texture

Lua notes

You can use the following constants for the mode:

miniwin.gradient_horizontal = 1
miniwin.gradient_vertical = 2
miniwin.gradient_texture = 3

Return value

eNoSuchWindow - no such miniwindow (either source or destination)

eUnknownOption - mode not one of the modes specified above

eOK - completed OK

View list of return code meanings

See Also ...




(GetDeviceCaps) Gets screen device capabilities
(SetCursor) Changes the shape of the mouse cursor
(TextRectangle) Specifies the size of the rectangle in which text is displayed in the output window.
(WindowAddHotspot) Adds a hotspot to a miniwindow
(WindowArc) Draws an arc in a miniwindow
(WindowBezier) Draws a B├ęzier curve in a miniwindow
(WindowBlendImage) Blends an image into a miniwindow, using a specified blending mode
(WindowCircleOp) Draws ellipses, filled rectangles, round rectangles, chords, pies in a miniwindow
(WindowCreate) Creates a miniwindow
(WindowCreateImage) Creates an image in a miniwindow
(WindowDelete) Deletes a miniwindow
(WindowDeleteAllHotspots) Deletes all hotspots from a miniwindow
(WindowDeleteHotspot) Deletes a hotspot from a miniwindow
(WindowDragHandler) Adds a drag handler to a miniwindow hotspot
(WindowDrawImage) Draws an image into a miniwindow
(WindowDrawImageAlpha) Draws an image into a miniwindow respecting the alpha channel
(WindowFilter) Performs a filtering operation over part of the miniwindow.
(WindowFont) Loads a font into a miniwindow
(WindowFontInfo) Returns information about a font
(WindowFontList) Lists all fonts loaded into a miniwindow
(WindowGetImageAlpha) Draws the alpha channel of an image into a miniwindow
(WindowGetPixel) Gets the colour of a single pixel in a miniwindow
(WindowHotspotInfo) Returns information about a hotspot
(WindowHotspotList) Lists all hotspots installed into a miniwindow
(WindowHotspotTooltip) Changes the tooltip text for a hotspot in a miniwindow
(WindowImageFromWindow) Creates an image from another miniwindow
(WindowImageInfo) Returns information about an image
(WindowImageList) Lists all images installed into a miniwindow
(WindowImageOp) Draws an ellipse, rectangle or round rectangle, filled with an image
(WindowInfo) Returns information about a miniwindow
(WindowLine) Draws a line in a miniwindow
(WindowList) Lists all miniwindows
(WindowLoadImage) Loads an image into a miniwindow from a disk file
(WindowMenu) Creates a pop-up menu inside a miniwindow
(WindowMergeImageAlpha) Merges an image into a miniwindow based on an alpha mask
(WindowMoveHotspot) Moves a hotspot in a miniwindow
(WindowPolygon) Draws a polygon in a miniwindow
(WindowPosition) Moves a miniwindow
(WindowRectOp) Draws a rectangle in a miniwindow
(WindowResize) Resizes a miniwindow
(WindowScrollwheelHandler) Adds a scroll-wheel handler to a miniwindow hotspot
(WindowSetPixel) Sets a single pixel in a miniwindow to the specified colour
(WindowSetZOrder) Sets the Z-Order for a miniwindow
(WindowShow) Shows or hides a miniwindow
(WindowText) Draws text into a miniwindow
(WindowTextWidth) Calculates the width of text in a miniwindow
(WindowTransformImage) Draws an image into a miniwindow with optional rotation, scaling, reflection and shearing
(WindowWrite) Writes the contents of a miniwindow to disk as a graphics file

(Help topic: function=WindowGradient)

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