GetDeviceCaps
Script function

world.GetDeviceCaps

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Type

Method

Summary

Gets screen device capabilities

Prototype

long GetDeviceCaps(long Index);

DOC_data_types View list of data type meanings

Description

This asks Windows for the capability of your output screen. The index specifies which attribute you are interested in, and it returns a number corresponding to that. Some useful indices are as follows:

0 : Device driver version
2 : Device classification
4 : Horizontal size in millimeters
6 : Vertical size in millimeters
8 : Horizontal width in pixels
10 : Vertical height in pixels
12 : Number of bits per pixel
14 : Number of planes
16 : Number of brushes the device has
18 : Number of pens the device has
20 : Number of markers the device has
22 : Number of fonts the device has
24 : Number of colors the device supports
26 : Size required for device descriptor
28 : Curve capabilities
30 : Line capabilities
32 : Polygonal capabilities
34 : Text capabilities
36 : Clipping capabilities
38 : Bitblt capabilities
40 : Length of the X leg
42 : Length of the Y leg
44 : Length of the hypotenuse
45 : Shading and blending caps
88 : Logical pixels/inch in X
90 : Logical pixels/inch in Y
104 : Number of entries in physical palette
106 : Number of reserved entries in palette
108 : Actual color resolution
116 : Current vertical refresh rate of the display device (for displays only) in Hz
117 : Horizontal width of entire desktop in pixels
118 : Vertical height of entire desktop in pixels
119 : Preferred blt alignment


For more information, see:

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

Lua example

print (GetDeviceCaps (8))  --> 1920  (horizontal width)


Return value

The value corresponding to the requested index.



See Also ...

Topic

DOC_miniwindows Mini Windows

Functions

FNC_GetSysColor GetSysColor (Gets the colour of various windows items)
FNC_GetSystemMetrics GetSystemMetrics (Returns selected system information from Windows)
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_WindowGradient WindowGradient (Draws a gradient in a rectangle)
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=GetDeviceCaps)

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