By contrast, pixels beneath the mouse cursor can usually be detected. The pixel must be visible in other words, it is not possible to retrieve the pixel color of a window hidden behind another window. For example, the color purple is defined 0x800080 because it has an intensity of 0x80 (128) for its blue and red components but an intensity of 0x00 (0) for its green component. This function returns a hexadecimal numeric string representing the RGB (red-green-blue) color of the pixel. Note: Slow takes precedence over Alt, so there is no need to specify Alt in this case. This method is about three times slower than the normal method. Slow: Uses a more elaborate method to retrieve the color, which may work in certain full-screen applications when the other methods fail. This method is about 10 % slower than the normal method. "Alt Slow").Īlt: Uses an alternate method to retrieve the color, which should be used when the normal method produces invalid or inaccurate colors for a particular type of window. If more than one word is present, separate each from the next with a space (e.g. Otherwise, specify one or more of the following words. If blank or omitted, the pixel is retrieved using the normal method. Coordinates are relative to the active window's client area unless CoordMode was used to change that. Color := PixelGetColor(X, Y, Mode) Parameters X, Y Retrieves the color of the pixel at the specified X and Y coordinates. An application should call GetDeviceCaps to determine whether a specified device supports this function.Ī bitmap must be selected within the device context, otherwise, CLR_INVALID is returned on all pixels.PixelGetColor - Syntax & Usage | AutoHotkey v2 PixelGetColor The pixel must be within the boundaries of the current clipping region. If the pixel is outside of the current clipping region, the return value is CLR_INVALID (0xFFFFFFFF defined in Wingdi.h). The return value is the COLORREF value that specifies the RGB of the pixel. The y-coordinate, in logical units, of the pixel to be examined. The x-coordinate, in logical units, of the pixel to be examined. The GetPixel function retrieves the red, green, blue (RGB) color value of the pixel at the specified coordinates.
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