The SetStretchBltMode function sets the bitmap stretching mode in the specified device context.
Declare Function SetStretchBltMode Lib "gdi32" Alias "SetStretchBltMode" (ByVal hdc As Long, ByVal nStretchMode As Long) As Long
|Operating Systems Supported|
|Requires Windows NT 3.1 or later; Requires Windows 95 or later|
Identifies the device context.
Specifies the stretching mode. It can be one of the following values:
Performs a Boolean AND operation using the color values for the eliminated and existing pixels. If the bitmap is a monochrome bitmap, this mode preserves black pixels at the expense of white pixels.
Deletes the pixels. This mode deletes all eliminated lines of pixels without trying to preserve their information.
Maps pixels from the source rectangle into blocks of pixels in the destination rectangle. The average color over the destination block of pixels approximates the color of the source pixels.
After setting the HALFTONE stretching mode, an application must call the SetBrushOrgEx function to set the brush origin. If it fails to do so, brush misalignment occurs.
Same as BLACKONWHITE.
Same as COLORONCOLOR.
Same as HALFTONE.
Same as WHITEONBLACK.
Performs a Boolean OR operation using the color values for the eliminated and existing pixels. If the bitmap is a monochrome bitmap, this mode preserves white pixels at the expense of black pixels.
|If the function succeeds, the return value is nonzero.|
If the function fails, the return value is zero. To get extended error information, call GetLastError.