References ▼
Changes the preview visible state.
#include "ltmm.h"
| Platform | Syntax |
|---|---|
| C | HRESULT IltmmCapture_put_PreviewVisible(pCapture, newVal) |
| C++ | HRESULT put_PreviewVisible(newVal) |
Pointer to an IltmmCapture interface.
Flag that specifies the preview visible state. Possible values are:
| Value | Meaning |
|---|---|
| VARIANT_TRUE | Preview is visible. |
| VARIANT_FALSE | Preview is invisible. |
| Value | Meaning |
|---|---|
| S_OK | The function was successful. |
| <> S_OK | An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation. |
To obtain the current visible state, call IltmmCapture::get_PreviewVisible.
To preview video while capturing, call this function with passing newVal as VARIANT_TRUE and call IltmmCapture::put_Preview with passing newVal as VARIANT_TRUE. If this function fails, an error is raised. For more information, refer to the Error Codes.
Win32, x64.
| Language | Example |
|---|---|
| C | Advanced Capture Application |
| C++ | Advanced Capture Application |
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