BTCImageData public bool Create int nWidth Specifies the width (in pixels) of the image. int nHeight Specifies the height (in pixels) of the image. int nBitsPerPixel 8 Specifies the number of color bits per display pixel. Initializes an bitmap and attaches it to a BTCImageData object. true if successful; otherwise, false. public void DeleteObject Deletes the image data by freeing attached memory. The object is not affected by this call. None. public bool IsLoaded const Check whether the image is initialized successfully. true if the image is initialized; otherwise, false. public int GetPlanes const Returns the number of channels in the image. By default, indexed-color images have one channel; RGB images (16bpp) have two, (24bpp) have three and RGBA (32bpp) images four channels. Number of planes; otherwise, -1. public int GetDepth const Returns the image's resolution in bits per pixel per plane. For 1bpp images this is 1, for 4bpp it is 4 and for 8, 16, 24 and 32bpp images this is 8. The bit depth per pixel; otherwise, -1. public int GetBitsPerPixel const Returns the number of bits per pixel (1,4,8,16,24,32). Number of bits per pixel; otherwise, -1. public int GetBytesPerPixel const Returns the number of bytes used per pixel (1,2,3,4). Number of bytes; otherwise, -1. public long GetBytesPerLine const Returns the number of bytes per line. Number of bytes per line; otherwise, -1. public static long GetBytesPerLine int nWidth Specifies the width (in pixels) of the image. int nBitsPerPixel Specifies the number of color bits per display pixel. const Returns the number of bytes per line. Number of bytes per line; otherwise, -1. public long GetImageSize const Returns the number of bytes used to store the image data. Number of bytes used to store the image, or -1 if there is an error. public static long GetImageSize int nWidth Specifies the width (in pixels) of the image. int nHeight Specifies the height (in pixels) of the image. int nBitsPerPixel Specifies the number of color bits per display pixel. const Returns the number of bytes used to store the image data. Number of bytes used to store the image, or -1 if there is an error. public long GetWidth const Returns the width of the image in pixels. The image width in pixels; otherwise, -1. public long GetHeight const Returns the height of the image in pixels. The image height in pixels; otherwise, -1. public long GetResolution const enum BTResolutionMetric& Metric BTMETRIC_NONE BTMETRIC_CENTIMETER BTMETRIC_METER BTMETRIC_INCH Specifies the resolution unit: const Returns the image resolution. The resolution if successful; otherwise, BTRESUNIT_NONE. public LPBITMAPINFO GetBitmapInfo Returns a pointer to the BITMAPINFO structure that defines the dimensions and color information of a image. Look into MSDN for more detailed informations. The pointer to the structure; otherwise, NULL. public LPBITMAPINFOHEADER GetBitmapInfoHeader Returns a pointer to the BITMAPINFOHEADER structure that contains information about the dimensions and color format of a image. Look into MSDN for more detailed informations. The pointer to the structure; otherwise, NULL. public unsigned char* GetBits Returns a pointer to the image data at position (0,0). The pointer to the data, otherwise, NULL. Please NOTICE that the library uses a top-down DIB with it's origin in the upper left corner. public unsigned char* GetBits int x Specifies the logical x-coordinate of the position. int y Specifies the logical y-coordinate of the position. Returns a pointer to the image data at position (x,y). The pointer to the data, otherwise, NULL. Please NOTICE that the library uses a top-down DIB with it's origin in the upper left corner. public int GetIndexFromColor BTCOLORREF col Specifies the color. Returns the index of a given color in the color table. The index of the color in the color table; otherwise -1 (e.g. color depth > 8). public int GetIndexFromPixel int x Specifies the logical x-coordinate of the position. int y Specifies the logical y-coordinate of the position. Returns the index of a color at (x,y). The index of the color at position (x,y); otherwise -1 (e.g. color depth > 8). public BTCOLORREF GetColorFromIndex int nIndex The index of a color in the color table. Returns the color from an index of a given color in the color table. The color; otherwise -1 (e.g. color depth > 8, index > Number of colors in the color table). public BTCOLORREF GetColorFromPixel int x Specifies the logical x-coordinate of the position. int y Specifies the logical y-coordinate of the position. Returns the color at position (x,y). The color at position (x,y); otherwise, -1; public bool SetColorForIndex int nIndex The color table index of the color to be modified. BTCOLORREF col Specifies the color to be inserted. Sets the color for a specific palette index. true if successful; otherwise false (e.g. color depth > 8, index > Number of colors in the color table). public bool SetColorForPixel int x Specifies the logical x-coordinate of the position. int y Specifies the logical y-coordinate of the position. int nIndex Specifies the color table index of the color. Sets the index to a color in the color table for the pixel at position (x,y). true if successful; otherwise false (e.g. color depth > 8, index > Number of colors in the color table). public bool SetColorForPixel int x Specifies the logical x-coordinate of the position. int y Specifies the logical y-coordinate of the position. BTCOLORREF col Specifies the color to be inserted. Sets the index to a color in the color table for the pixel at position (x,y). true if successful; otherwise false (e.g. color depth > 8, index > Number of colors in the color table). public bool SetColorForColor BTCOLORREF oldCol Specifies the color to be modified. BTCOLORREF newCol Specifies the new color. Replaces a color with another one in the whole image. true if successful; otherwise false. public bool IsColorInColorTable BTCOLORREF col Specifies the color to search for. Checks whether the requested color is available in the image color table. true if the color is available; otherwise, false. public int FindNearestPaletteColor BTCOLORREF col Specifies the color to be matched. Returns the color that best matches a specified color. The index of the color if successful; otherwise, -1. public bool SwapPaletteIndex unsigned char nIndex1 Specifies the index to be swapped with nIndex2. unsigned char nIndex2 Specifies the index to be swapped with nIndex1 Swap two indexes in the image and their colors in the palette. true if successful; otherwise false (e.g. color depth > 8). public RGBQUAD* GetColorTable Returns the pointer to the image color table. The pointer to the color table; otherwise, NULL (e.g. the image doesn't have a palette, image > 8 bpp). public int GetColorTableSize Returns the size of the color table. The size of the color table; otherwise, 0. public static int GetColorTableSize int nNumColorEntries Number of colors in the color table. Returns the size of the color table. The size of the color table; otherwise, 0. public int GetNumColorEntries Returns the number of color table entries in this image. The number of colours used in this image; otherwise, -1. public static int GetNumColorEntries int nBitsPerPixel Specifies the number of color bits per display pixel. Returns the number of color table entries in this image. The number of colours used in this image; otherwise, -1. public bool FillColorTable const RGBQUAD* pPalette Pointer to an array of colors. int iEntries Number of colors in the array. Fills the color table. true if successful; otherwise false (e.g. color depth > 8). public HPALETTE GetPalette const Returns the image palette. When you no longer need the palette, call the Win32API DeleteObject function to delete it. The handle to a logical palette, otherwise, NULL (e.g. the image doesn't own a palette). public bool SetPalette HPALETTE hPal Handle to the new palette. Sets the palette for the image. true if successful; otherwise, false (e.g. the image doesn't own a palette). public bool Resize int nWidth Specifies the new width (in pixels) of the image. int nHeight Specifies the new height (in pixels) of the image. const enum BTResizeFilter& Filter BTRESIZEFILTER_BILINEAR BTRESIZEFILTER_BOX BTRESIZEFILTER_BILINEAR BTRESIZEFILTER_GAUSSIAN BTRESIZEFILTER_HAMMING BTRESIZEFILTER_BLACKMAN BTRESIZEFILTER_TRIANGLE BTRESIZEFILTER_BELL BTRESIZEFILTER_BSPLINE BTRESIZEFILTER_SINC BTRESIZEFILTER_LANCZOS3 BTRESIZEFILTER_MITCHELL BTRESIZEFILTER_QUADRATIC BTRESIZEFILTER_HERMITE BTRESIZEFILTER_HANNING BTRESIZEFILTER_CATROM BTRESIZEFILTER_CUBIC BTRESIZEFILTER_HANN4 Specifies the filter to resize bitmap. The following filters are available Resizes the image using various filters. true if successful; otherwise, false. public bool Resize BTCImageData& DestImage Specifies the destination image object. int nWidth Specifies the new width (in pixels) of the image. int nHeight Specifies the new height (in pixels) of the image. const enum BTResizeFilter& Filter BTRESIZEFILTER_BILINEAR BTRESIZEFILTER_BOX BTRESIZEFILTER_BILINEAR BTRESIZEFILTER_GAUSSIAN BTRESIZEFILTER_HAMMING BTRESIZEFILTER_BLACKMAN BTRESIZEFILTER_TRIANGLE BTRESIZEFILTER_BELL BTRESIZEFILTER_BSPLINE BTRESIZEFILTER_SINC BTRESIZEFILTER_LANCZOS3 BTRESIZEFILTER_MITCHELL BTRESIZEFILTER_QUADRATIC BTRESIZEFILTER_HERMITE BTRESIZEFILTER_HANNING BTRESIZEFILTER_CATROM BTRESIZEFILTER_CUBIC BTRESIZEFILTER_HANN4 Specifies the filter to resize bitmap. The following filters are available Resizes the image using various filters. true if successful; otherwise, false. public bool Crop const RECT& rect The area you want to keep. Cropping eliminates areas of an image by removing them. true if successful; otherwise, false. public bool Crop int x Specifies the logical x-coordinate of the upper-left corner from the area you want to keep. int y Specifies the logical y-coordinate of the upper-left corner from the area you want to keep. int nWidth Specifies the width of the area you want to keep. int nHeight Specifies the height of the area you want to keep. Cropping eliminates areas of an image by removing them. true if successful; otherwise, false. public bool Copy BTCImageData& SrcImage The source image. RECT& rect Specifies the area to copy. Copies the given rectangle from the given image into this image. true if successful; otherwise, false. public bool Copy BTCImageData& SrcImage The source image. int x Specifies the logical x-coordinate of the upper-left corner from the area you want to copy. int y Specifies the logical y-coordinate of the upper-left corner from the area you want to copy. int nWidth Specifies the width of the area you want to copy. int nHeight Specifies the height of the area you want to copy. Copies the given rectangle from the given image into this image. true if successful; otherwise, false. public bool Fill const RECT& rect Specifies the area to fill. BTCOLORREF col Specifies the color to be used. Fills the specified rectangle with a specified color. true if successful; otherwise, false. public bool Fill int x Specifies the logical x-coordinate of the upper-left corner of the rectangle. int y Specifies the logical y-coordinate of the upper-left corner of the rectangle. int w Specifies the width of the rectangle. int h Specifies the height of the rectangle. BTCOLORREF col Specifies the color to be used. Fills the specified rectangle with a specified color. true if successful; otherwise, false. public bool Combine BTCImageData* pImage The image to be combined. enum BTCombineFunction cf BTCOMBINEFUNCTION_NORMAL BTCOMBINEFUNCTION_ADD BTCOMBINEFUNCTION_SUBTRACT BTCOMBINEFUNCTION_MULTIPLY BTCOMBINEFUNCTION_DIVIDE BTCOMBINEFUNCTION_DIFFERENCE BTCOMBINEFUNCTION_LIGHTEST BTCOMBINEFUNCTION_DARKEST BTCOMBINEFUNCTION_AVERAGE BTCOMBINEFUNCTION_OR BTCOMBINEFUNCTION_AND BTCOMBINEFUNCTION_SCREEN BTCOMBINEFUNCTION_OVERLAY Sets the method for combining the images. The color data from the two images is combined on a pixel-by-pixel basis according to the function. The following functions are available: int x 0 Specifies the logical x-coordinate of the position. int y 0 Specifies the logical y-coordinate of the position. int nOpacity 100 At 0% opacity, the combined image is completely transparent; at 100% opacity, the comined image is completely opaque. bool bClipValues true Determines how to handle final color values greater than 255 and less than 0.

bClipValuesValue < 0Value > 255
trueValue = 0Value = 255
falseValue = 256 + ValueValue = Value - 256
]]> int nDivisor 1 The divisor [0..255] is applied to the color values produced by the formula/function. It is used to divide the color values. It can reduce the effects of the other parameters. int nBias 0 The bias [-255..255] is applied to the color values produced by the formula/function. It shifts each color value by a fixed amount. The number is added to the color value produced by the formula/function and divisor. Combines another image with this image at position (x,y). For color depths <= 8 bpp the resulting colors are mapped to the origin color table. true if successful; otherwise, false. public bool Blend BTCImageData& ImageData The image to be used to blend. int x Specifies the logical x-coordinate of the position. int y Specifies the logical y-coordinate of the position. int a Specifies an alpha transparency value [0..255] to be used [0 = Transparent, 255 = Opaque]. BTCOLORREF colProtect 0x01000000 Specifies a color that is protected from blending. For color depths <= 8 bpp the resulting colors are mapped to the origin color table. The image object must be created before using this method. true if successful; otherwise, false. public bool GetChannel BTCImageData* pImage Specifies the object to receive the channel. The object will be initialized/created automatically. const enum BTChannel& Channel BTCHANNEL_RED BTCHANNEL_GREEN BTCHANNEL_BLUE BTCHANNEL_ALPHA Specifies the channel. Returns the requested channel. true if successful; otherwise, false. public bool SetChannel BTCImageData* pImage Specifies the image from which the channel should be extracted. const enum BTChannel& Channel BTCHANNEL_RED BTCHANNEL_GREEN BTCHANNEL_BLUE BTCHANNEL_ALPHA Specifies the channel. Sets the specified channel. Only for images > 8bpp. To set the alpha channel a 32bpp image is required. true if successful; otherwise, false. public bool SplitChannels BTCImageData* pRed Specifies the object to receive the red channel. BTCImageData* pGreen Specifies the object to receive the green channel. BTCImageData* pBlue Specifies the object to receive the blue channel. BTCImageData* pAlpha Specifies the object to receive the alpha channel. Extracts the red, blue, green and alpha channels as individual greyscale (8bpp) images. To get only specific channels set the not needed channels to NULL. The BTCImageData object's receiving the requested channels only have to be pointers to valid objects. They do not have to be created using Create(). true if successful; otherwise, false. public bool CombineChannels BTCImageData* pRed Specifies the red channel. BTCImageData* pGreen Specifies the green channel. BTCImageData* pBlue Specifies the blue channel. BTCImageData* pAlpha Specifies the alpha channel. Combines the red, blue, green and alpha channels to a new image. Before using this method the destination image has to be created using Create(). If there has to be added an alpha channel the object must be created as 32bpp image, otherwise 24bpp. To combine only specific channels set the not needed channels to NULL. The channel objects must be greyscale (8bpp) images. true if successful; otherwise, false. public bool ConvertTo24BPP Converts the given image to 24 bits per pixel. true if successful; otherwise, false. public bool ConvertTo32BPP unsigned char nAlpha 0 Alpha channel value. Converts the given image to 32 bits per pixel. true if successful; otherwise, false. public bool Quantize int nBitsPerPixel Number of bits per pixel (1,4,8). Quantizes a image > 8 bpp to an n bpp image. true if successful; otherwise, false. public bool Blur Blur softens the image. Notice, this method is available only for 32 bpp images. true if successful; otherwise, false. public bool Grayscale Removes the colors from an image and replaces each color with a grey matching its luminance value. true if successful; otherwise, false. public bool Negate Replaces each pixel color with its opposite on the color space. true if successful; otherwise, false. public bool Flip Reverses an image along it's vertical axis. true if successful; otherwise, false. public bool Mirror Reverses the image along it's horizontal axis. true if successful; otherwise, false. public bool Rotate double dAngle Specifies the rotation angle in degrees [0 ... 360]. const enum BTDirection& Direction BTDIRECTION_LEFT BTDIRECTION_RIGHT BTDIRECTION_RIGHT Specifies the rotation direction. BTCOLORREF colBackground 0x00000000 Specifies the background color. Rotates the image to the left or right around its center point. Images with less than 24bpp will be converted to 24bpp. true if successful; otherwise, false. public bool Rotate90 const enum BTDirection& Direction BTDIRECTION_LEFT BTDIRECTION_RIGHT BTDIRECTION_RIGHT Specifies the rotation direction. Rotates the image 90 degrees to the left or right. true if successful; otherwise, false. public bool Smooth int nKernelSize 3 Size of the N x N kernel. Smoothes the image. true if successful; otherwise, false. public bool Normalize Normalizes the pixel values to span the full range of color values. true if successful; otherwise, false. public bool Posterize int nLevels 7 Number of levels to use [2..255]. Posterize decreases the number of used colors and levels of lightness in the image. The result is a flatter-looking image with bands of color rather than smooth gradients. true if successful; otherwise, false. public bool Threshold int nThreshold 166 Threshold level to use [1..255]. Threshold turns the image into a black-and-white image. All pixels whose brightness values are below the threshold level become black and all pixels whose brightness values are equal to or greater than the threshold level become white. true if successful; otherwise, false. public bool Emboss Highlights the areas of contrast with black or white pixels and colors the low contrast areas a medium grey. Colors appear when there is a large difference in the contrast. true if successful; otherwise, false. public bool Detail Increases the details of an image. true if successful; otherwise, false. public bool EdgeEnhance Increases the contrast along the edges in the image. true if successful; otherwise, false. public bool EdgeEnhanceMore Increases the contrast along the edges in the image. true if successful; otherwise, false. public bool Median int nAperature 1 Indicates the number of pixels around each pixel that are used to determine the median that replaces the pixel [1..30]. For example: nAperature = 1 -> 3 x 3 Kernel, nAperature = 2 -> 5 x 5 Kernel. The Median filter adjusts the intensity of each pixel to the median value of its surrounding N x N pixel neighborhood. Notice, you can apply this effect only to 24 and 32-bit images. true if successful; otherwise, false. public bool Dilate int nAperature 1 Indicates the number of pixels around each pixel that are used to determine the median that replaces the pixel [1..30]. For example: nAperature = 1 -> 3 x 3 Kernel, nAperature = 2 -> 5 x 5 Kernel. The Dilate filter is a variation of a standard N x N pixel medium filter. It adjusts the intensity of each pixel to the maximum value of its surrounding N x N pixel neighborhood. Notice, you can apply this effect only to 24 and 32-bit images. true if successful; otherwise, false. public bool Erode int nAperature 1 Indicates the number of pixels around each pixel that are used to determine the median that replaces the pixel [1..30]. For example: nAperature = 1 -> 3 x 3 Kernel, nAperature = 2 -> 5 x 5 Kernel. The Erode filter is a variation of a standard N x N pixel medium filter. It adjusts the intensity of each pixel to the minimum value of its surrounding N x N pixel neighborhood. Notice, you can apply this effect only to 24 and 32-bit images. true if successful; otherwise, false. public bool FindEdge double dFactor 60.0 Factor of edge highlighting [0..100]. Enhances the contrasts between light and dark in the image by darkening the image and then highlighting the edges (Laplacian Filter). true if successful; otherwise, false. public bool Sharpen Sharpens the image. true if successful; otherwise, false. public bool Solarize double dFactor 0.0 Factor of solarization [0..99.9%]. Produces a 'solarization' effect seen when exposing a photographic film to light during the development process. true if successful; otherwise, false. public bool Antialias double dWeight 1.0 / 3.0 Spezifies the weight of antialising [0...1]. int nSameThreshold 25 How close two colors have to be to be the 'same' [0...255]. int nDiffTreshold 25 How close two colors have to be to be 'different' [0...255]. Antialias the image. Notice, you can apply this effect only to 24 and 32-bit images. true if successful; otherwise, false. public bool DeInterlace bool bRetainOdd true Retain or remove odd lines. const enum BTDeInterlaceType& Type BTDEINTERLACETYPE_INTERPOLATE BTDEINTERLACETYPE_INTERPOLATE BTDEINTERLACETYPE_DUPLICATE Method to replace missing lines. The following methods are available: Removes missing or mis-aligned scan lines from a video image. true if successful; otherwise, false. public bool Noise BTNoiseType Type BTNOISETYPE_UNIFORMNOISE BTNOISETYPE_LAPLACIANNOISE BTNOISETYPE_POISSONNOISE BTNOISETYPE_GAUSSIANNOISE BTNOISETYPE_MULTIPLICATIVEGAUSSIANNOISE BTNOISETYPE_IMPULSENOISE The filter to use. The following filters are available: The noise filter adds random pixels to an image. true if successful; otherwise, false. public bool OilPaint int nRadius 2 The radius around a pixel that should be used for calculation [1..10]. int nSmoothness 85 Defines how smooth details should be [1..255]. Let the image looks like oil painted. true if successful; otherwise, false. public bool Convolve const double* pKernel Pointer to the kernel. int nKernelSize Specifies the size of the kernel. int nDivisor 1 Each coefficient in the filter kernel is divided by the division factor before being applied to a pixel. int nBias 0 The bias is added to the product of the kernel calculation and the division factor. bool bAbs false Specifies that only absolute color values should be used for calculations. int nApplyToChannels BTCHANNEL_RED | BTCHANNEL_GREEN | BTCHANNEL_BLUE Specifies the channels that are affected by the convolution filter. Manipulates the image by using the specified N x N kernel. true if successful; otherwise, false. public bool AdjustBrightness int nPercentage Number of percent to change [-100..100]. Adjust the brightness of the entire image. true if successful; otherwise, false. public bool AdjustContrast int nPercentage Number of percent to change [-100..100]. Adjust the contrast of the entire image. true if successful; otherwise, false. public bool AdjustHighlight int nPercentage Number of percent to change [0..100]. Adjust the highlight of the entire image. true if successful; otherwise, false. public bool AdjustMidtone int nPercentage Number of percent to change [0..100]. Adjust the midtone of the entire image. true if successful; otherwise, false. public bool AdjustShadow int nPercentage Number of percent to change [0..100]. Adjust the shadow of the entire image. true if successful; otherwise, false. public bool AdjustGamma double dRedValue 1.0 Red value [0.2 ... 5.0]. double dGreenValue 1.0 Green value [0.2 ... 5.0]. double dBlueValue 1.0 Blue value [0.2 ... 5.0]. Adjust the midtones and color balance of an image. true if successful; otherwise, false. public bool AdjustHue int nPercentage Number of percent to change [-180..180]. Adjust the hue values of the entire image. true if successful; otherwise, false. public bool AdjustLightness int nPercentage Number of percent to change [-100..100]. Adjust the lightness values of the entire image. true if successful; otherwise, false. public bool AdjustSaturation int nPercentage Number of percent to change [-100..100]. Adjust the saturation values of the entire image. true if successful; otherwise, false. public bool AdjustHLS int nHueDegrees 0 Number of percent to change [-180..180]. int nLightnessPercentage 0 Number of percent to change [-100..100]. int nSaturationPercentage 0 Number of percent to change [-100..100]. Adjust the hue, lightness and saturation values of the entire image. true if successful; otherwise, false. public bool AdjustRed int nPercentage Number of percent to change [-100..100]. Adjust the red values of the entire image. true if successful; otherwise, false. public bool AdjustGreen int nPercentage Number of percent to change [-100..100]. Adjust the green values of the entire image. true if successful; otherwise, false. public bool AdjustBlue int nPercentage Number of percent to change [-100..100]. Adjust the blue values of the entire image. true if successful; otherwise, false. public bool AdjustRGB int nRedPercentage 0 Number of percent to change [-100..100]. int nGreenPercentage 0 Number of percent to change [-100..100]. int nBluePercentage 0 Number of percent to change [-100..100]. Adjust the red, green and blue values of the entire image. true if successful; otherwise, false. public int Stretch HDC hdc Handle to the destination device context. int xDest Specifies the x-coordinate, in logical units, of the upper-left corner of the destination rectangle. int yDest Specifies the y-coordinate, in logical units, of the upper-left corner of the destination rectangle. int nDestWidth Specifies the width, in logical units, of the destination rectangle. int nDestHeight Specifies the height, in logical units, of the destination rectangle. int xSrc Specifies the x-coordinate, in logical units, of the upper-left corner of the source rectangle. int ySrc Specifies the y-coordinate, in logical units, of the upper-left corner of the source rectangle. int nSrcWidth Specifies the width, in logical units, of the source rectangle. int nSrcHeight Specifies the height, in logical units, of the source rectangle. int iMode COLORONCOLOR Specifies the stretching mode. (See SetStretchBltMode [Win32API] in the MSDN for available modes). unsigned long dwRop SRCCOPY Specifies the raster operation to be performed. (See BitBlt [Win32API] in the MSDN for a list of common raster operation codes). The function copies a bitmap from a source rectangle into a destination rectangle, stretching or compressing the bitmapto fit the dimensions of the destination rectangle, if necessary. The system stretches or compresses the bitmap according to the stretching mode specified. Number of scanlines drawed; otherwise, -1. public int Draw HDC hdc Handle to the destination device context. int xDest Specifies the x-coordinate, in logical units, of the upper-left corner of the destination rectangle. int yDest Specifies the y-coordinate, in logical units, of the upper-left corner of the destination rectangle. int nDestWidth Specifies the width, in logical units, of the destination rectangle. int nDestHeight Specifies the height, in logical units, of the destination rectangle. int xSrc Specifies the x-coordinate, in logical units, of the upper-left corner of the source rectangle. int ySrc Specifies the y-coordinate, in logical units, of the upper-left corner of the source rectangle. int iMode COLORONCOLOR Specifies the stretching mode. (See SetStretchBltMode [Win32API] in the MSDN for available modes). unsigned long dwRop SRCCOPY Specifies the raster operation to be performed. (See BitBlt [Win32API] in the MSDN for a list of common raster operation codes). The function draws the specified rectangle of pixels into the destination device context. Number of scanlines drawed; otherwise, -1. public int DrawDithered HDC hdc Handle to the destination device context. int xDest Specifies the x-coordinate, in logical units, of the upper-left corner of the destination rectangle. int yDest Specifies the y-coordinate, in logical units, of the upper-left corner of the destination rectangle. int nDestWidth Specifies the width, in logical units, of the destination rectangle. int nDestHeight Specifies the height, in logical units, of the destination rectangle. int xSrc Specifies the x-coordinate, in logical units, of the upper-left corner of the source rectangle. int ySrc Specifies the y-coordinate, in logical units, of the upper-left corner of the source rectangle. Calls Draw() with iMode = HALFTONE. See Draw() for more details. Number of scanlines drawed; otherwise, -1. public bool StretchTransparent HDC hdc Handle to the destination device context. int xDest Specifies the x-coordinate, in logical units, of the upper-left corner of the destination rectangle. int yDest Specifies the y-coordinate, in logical units, of the upper-left corner of the destination rectangle. int nDestWidth Specifies the width, in logical units, of the destination rectangle. int nDestHeight Specifies the height, in logical units, of the destination rectangle. int xSrc Specifies the x-coordinate, in logical units, of the upper-left corner of the source rectangle. int ySrc Specifies the y-coordinate, in logical units, of the upper-left corner of the source rectangle. int nSrcWidth Specifies the width, in logical units, of the source rectangle. int nSrcHeight Specifies the height, in logical units, of the source rectangle. BTCOLORREF crColor Specifies the transparent color. The function copies a bitmap from a source rectangle into a destination rectangle, stretching or compressing the bitmap to fit the dimensions of the destination rectangle, if necessary. The image parts specified by the color crColor will be drawn transparent. true if successful; otherwise, false. public bool DrawTransparent HDC hdc Handle to the destination device context. int xDest Specifies the x-coordinate, in logical units, of the upper-left corner of the destination rectangle. int yDest Specifies the y-coordinate, in logical units, of the upper-left corner of the destination rectangle. int nDestWidth Specifies the width, in logical units, of the destination rectangle. int nDestHeight Specifies the height, in logical units, of the destination rectangle. int xSrc Specifies the x-coordinate, in logical units, of the upper-left corner of the source rectangle. int ySrc Specifies the y-coordinate, in logical units, of the upper-left corner of the source rectangle. BTCOLORREF crColor Specifies the transparent color. The function draws the specified rectangle of pixels into the destination device context. The image parts specified by the color crColor will be drawn transparent. true if successful; otherwise, false. public bool DrawSemiTransparent HDC hdc Handle to the destination device context. int xDest Specifies the x-coordinate, in logical units, of the upper-left corner of the destination rectangle. int yDest Specifies the y-coordinate, in logical units, of the upper-left corner of the destination rectangle. int nDestWidth Specifies the width, in logical units, of the destination rectangle. int nDestHeight Specifies the height, in logical units, of the destination rectangle. int xSrc Specifies the x-coordinate, in logical units, of the upper-left corner of the source rectangle. int ySrc Specifies the y-coordinate, in logical units, of the upper-left corner of the source rectangle. BTCOLORREF crColor Specifies the transparent color. The function draws the specified rectangle of pixels semi transparent into the destination device context. Notice, this function is only available for <= 8 bpp images. true if successful; otherwise, false. public bool FromDC HDC hdc Handle to the destination device context. int nDestWidth Specifies the width, in logical units, of the image to create. int nDestHeight Specifies the height, in logical units, of the image to create. int xSrc Specifies the x-coordinate, in logical units, of the upper-left corner of the source rectangle. int ySrc Specifies the y-coordinate, in logical units, of the upper-left corner of the source rectangle. int nSrcWidth Specifies the width, in logical units, of the source rectangle. int nSrcHeight Specifies the height, in logical units, of the source rectangle. unsigned long dwRop SRCCOPY Specifies the raster operation to be performed (See BitBlt [Win32API] in the MSDN for a list of common raster operation codes). Creates a image that is compatible with the device specified by hdc. The image has the same number of color planes or the same bits-per-pixel format as the specified Windows device context. If the size of the source rectangle is not equal to the size of the image to create the source rectangle will be resized to the destination size. true if successful; otherwise, false. public bool FromHandle HBITMAP hBitmap Specifies a Windows GDI bitmap. Creates a image from a Windows GDI bitmap. true if successful; otherwise, false. public bool FromDIB HANDLE hDib Specifies a device-independent bitmap. Creates a image from a device-independent bitmap (DIB). true if successful; otherwise, false. public HANDLE GetDIB Returns a device-independed bitmap (DIB) from the image. When you no longer need the bitmap, call the Win32-API ::GlobalFree function to delete it. The handle to the bitmap if successful; otherwise, NULL. public HBITMAP GetBitmap Returns a device-dependent bitmap (DDB) from the image. When you no longer need the bitmap, call the Win32-API ::DeleteObject function to delete it. The handle to the bitmap if successful; otherwise, NULL. public int Compare BTCImageData* pImageData Pointer to image object to compare with. Compares the image with another one. >= 0 if successful; otherwise, -1.BTCOMPARERESULT_IMAGE = Images are different.
BTCOMPARERESULT_NUMCOLORS = Number of colours in palette differ.
BTCOMPARERESULT_COLOR = Image colours differ.
BTCOMPARERESULT_SIZE_X = Image width differs.
BTCOMPARERESULT_SIZE_Y = Image heights differ.

]]> public bool GetHistogram BTCHistogram* pHistogram Pointer to a BTCHistogram object. Retrieves the histogram of the image. true if successful; otherwise, false. public void SetNotification BTINotification* pNotification NULL Pointer to the class that is derived from BTINotification. Sets the notification callback interface. None. public BTINotification* GetNotification Returns a pointer to the notification callback interface. The pointer to the notification callback interface.