capGrabFrame macro (vfw.h)

Article
02/22/2024

The capGrabFrame macro retrieves and displays a single frame from the capture driver. After capture, overlay and preview are disabled. You can use this macro or explicitly call the WM_CAP_GRAB_FRAME message.

Syntax

void capGrabFrame(
   hwnd
);

Parameters

hwnd

Handle to a capture window.

Return value

None

Remarks

For information about installing callback functions, see the capSetCallbackOnError and capSetCallbackOnFrame macros.

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