capSetScrollPos macro (vfw.h)
The capSetScrollPos macro defines the portion of the video frame to display in the capture window. This message sets the upper left corner of the client area of the capture window to the coordinates of a specified pixel within the video frame. You can use this macro or explicitly call the WM_CAP_SET_SCROLL message.
Syntax
void capSetScrollPos(
hwnd,
lpP
);
Parameters
hwnd
Handle to a capture window.
lpP
Address to contain the desired scroll position.
Return value
None
Remarks
The scroll position affects the image in both preview and overlay modes.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | vfw.h |