capDlgVideoFormat macro (vfw.h)

Article
02/22/2024

The capDlgVideoFormat macro displays a dialog box in which the user can select the video format. The Video Format dialog box might be used to select image dimensions, bit depth, and hardware compression options. You can use this macro or explicitly send the WM_CAP_DLG_VIDEOFORMAT message.

Syntax

void capDlgVideoFormat(
   hwnd
);

Parameters

hwnd

Handle to a capture window.

Return value

None

Remarks

After this message returns, applications might need to update the CAPSTATUS structure because the user might have changed the image dimensions.

The Video Format dialog box is unique for each capture driver. Some capture drivers might not support a Video Format dialog box. Applications can determine if the capture driver supports this message by checking the fHasDlgVideoFormat member of CAPDRIVERCAPS.

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