IBasicVideo::put_SourceTop
| Microsoft DirectShow 9.0 |
IBasicVideo::put_SourceTop
The put_SourceTop method sets the y-coordinate of the source rectangle.
Syntax
HRESULT put_SourceTop( long SourceTop );
Parameters
SourceTop
[in] Specifies the y-coordinate, in pixels.
Return Values
Returns an HRESULT value. Possible values include the following.
| Return code | Description |
| E_INVALIDARG | Invalid argument. |
| S_OK | Success. |
| VFW_E_NOT_CONNECTED | The video renderer's input pin is not connected. |
Remarks
This method moves the entire source rectangle up or down. It does not change the height of the source rectangle. If the value of SourceTop would place the bottom edge of the rectangle beyond the edge of the video frame, the method returns E_INVALIDARG. To crop the video, call put_SourceHeight to adjust the width, before calling put_SourceTop. (Or call SetSourcePosition to set the entire source rectangle at once.)
Requirements
Header: Declared in Control.h; include Dshow.h.
Library: Use Strmiids.lib.
See Also