IKGetPixel

This function retrieves the RGB values from a specified pixel in the designated object (The screen or the image data).

[C++Builder/Visual C++] BOOL IKGetPixel(LPVOID DeviceValue, int x, int y, LPBYTE Red, LPBYTE Green, LPBYTE Blue, BYTE DeviceMode);

[Delphi] function IKGetPixel(DeviceValue: THandle; x, y: Integer; var Red, Green, Blue: Byte; DeviceMode: Byte): LongBool;

[Visual Basic] Function IKGetPixel(ByVal DeviceValue As Long, ByVal x As Long, ByVal y As Long, Red As Byte, Green As Byte, Blue As Byte, ByVal DeviceMode As Byte) As Long

Parameters

Name	Explanation
DeviceValue	The device context or the raster image data (Depends on the DeviceMode)
x,y	The x,y coordinates of the pixel
Red	The red component of the RGB value
Green	The green component of the RGB value
Blue	The blue component of the RGB value
DeviceMode	The designated object (0: Screen, 2: Image data)

Return Value

Returns True (nonzero) if successful. Returns False (0) if unsuccessful.

Explanation

The IKGetPixel function retrieves the RGB values from a specified pixel in the designated object (The screen or the image data). This function is enabled when the DeviceMode parameter is 0 or 2. In other words, this function can only be used with the screen or the image data but not with the printer. Please set the x and y parameters in pixel units.

Note: In the Visual Basic PictureBox, please set the AutoRedraw property to True.

The differences from the ImageKit5

Function Name	Parameters
IK5GetPixel:	DeviceValue, x, y, Red, Green, Blue
IKGetPixel:	DeviceValue, x, y, Red, Green, Blue, DeviceMode

If you pass the value of the IK5SetDeviceMode to the DeviceMode parameter then this method will work in the same way as in the ImageKit5.