This method retrieves the image from the screen device context.
[C++Builder] [ unsigned
=
]imagekitcontrolname->PrintDraw->GetImageFromHdc(HDC
DC, int AWidth, int AHeight, short BitCount)
[Delphi] [ THandle =
]imagekitcontrolname.PrintDraw.GetImageFromHdc(DC:
HDC; AWidth, AHeight: Integer; BitCount: Smallint)
Parameters
| Name | Explanation |
|---|---|
| DC | The screen device context |
| AWidth | The width of the retrieved image (in pixels) |
| AHeight | The height of the retrieved image (in pixels) |
| BitCount | The number of bits per pixels in the image you want to create |
Return Value
Returns the image handle of the raster image if successful, returns NULL (0) when not successful.
Explanation
The GetImageFromHdc method retrieves the image from the screen device context and returns it to the image data.
Note: Some components do not always retrieve the height and width of the actual image. In such cases there can be problems with the GetImageFromHdc method retrieving the image from the screen device context.