Retrieves the bits of the specified bitmap and copies them into a buffer as a DIB
#include <WinAPIGdi.au3>
_WinAPI_GetDIBits ( $hDC, $hBitmap, $iStartScan, $iScanLines, $pBits, $tBI, $iUsage )
| $hDC | Handle to the device context |
| $hBitmap | Handle to the bitmap. This must be a compatible bitmap (DDB). |
| $iStartScan | Specifies the first scan line to retrieve |
| $iScanLines | Specifies the number of scan lines to retrieve |
| $pBits | Pointer to a buffer to receive the bitmap data. If this parameter is 0, the function passes the dimensions and format of the bitmap to the $tagBITMAPINFO structure pointed to by the $tBI parameter. |
| $tBI | A $tagBITMAPINFO structure or a pointer to it that specifies the desired format for the DIB data |
| $iUsage | Specifies the format of the bmiColors member of the $tagBITMAPINFO structure. It must be one of the following values: $DIB_PAL_COLORS - The color table should consist of an array of 16-bit indexes into the current palette $DIB_RGB_COLORS - The color table should consist of literal red, green, blue values |
| Success: | If $pBits is not 0 and the function succeeds, the return value is the number of scan lines copied from the bitmap. If $pBits is 0 and GetDIBits successfully fills the structure, the return value is True. |
| Failure: | False |
Search GetDIBits in MSDN Library.