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.► WinBin2Iso ► Glossar ► WinPing ► Android ► Windows-7 ► Registry ► ► ► DesktopNoteOK ► Error-Message ► QuickTextPaste ► CoronaKO ► IsMyHdOK ► DesktopOK ► ProcessKO ► MatriX.CoronaKO ► Windows-11 ► NewFileTime ► ClassicDesktopClock ► Twain ► OK. ► ColorConsole ► AutoHideDesktopIcons ► Beginners ► AlwaysMouseWheel ► Q-DIR ► DesktopImages3D ► How-To ► DesktopDigitalClock ► FileSystem ► MagicMouseTrails ► 3D.Benchmark.OK ► SoftwareOK ► Extern-Downloads ► DesktopSnowOK ► ShortDoorNote ► PointerStick ► PhotoResizerOK ► MultiClipBoardSlots ► GetPixelColor ► OnlyStopWatch ► NonCompressibleFiles ► ExperienceIndexOK ► CpuFrequenz ► Samsung-Galaxy ► StressMyPC ► TraceRouteOK ► FontViewOK ► Internet-► MeinPlatz ► WinScan2PDF ► QuickMemoryTestOK ► This-and-That-or-Other ► IsMyTouchScreenOK ► DontSleep ► AutoHideMouseCursor ► PreventTurnOff ► Print ► OneLoupe ► Windows-10 ► AutoPowerOptionsOK ► 12-Ants ► ► DirPrintOK ► ThisIsMyFile ► Windows-OS ► Windows-XP ► TheAeroClock ► DesktopClock3D ► GetWindowText ► Microsoft-Office ► Network ► Windows-Console ► System-General ► Windows-CPP-und-C ► Delete.On. The pixel must be within the boundaries of the current clipping region. I already found implementation in C for nix (which uses X11/Xlib library, that as I understood is for nix systems only) and I tried the code on a linux machine, and it ran pretty fast (it reads 8K of pixels in about 1 second). If the pixel is outside of the current clipping region, the return value is CLR_INVALID (0xFFFFFFFF defined in Wingdi.h). 4.5/5 Review by Alexandra Sava on What's new in GetPixelColor 3.23: Bug fix in the pixel query in various applications Updated the language files in the Pixel Query application. So I am looking for a way to read a color of a screen pixel in C code. 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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