Unitech PA982 Manuel d'utilisateur télécharger pdf (Page 96)

17 Camera related functions (C#)

Please get C# sample program from below URL.

http://w3.tw.ute.com/pub/cs/software/Sample_Program/Camera/CameraDemo_C_Sharp.zip

17.1 Open Camera

Function Description:

Open camera and initial video resource for encoding / decoding processes. This must be called

before any other functions.

Function Call:

bool OpenCamera();

Return code:

TRUE: Success.

FALSE: Fail

17.2 Release Camera

Function Description:

Close camera and release video resource. This must be called after using the camera.

Function Call:

void ReleaseCamera();

17.3 Start Preview

Function Description:

Start preview within a rectangle area as given in the parameters. Using screen coordinates. Actual

displaying area can be a little smaller than the rectangle for hardware reasons. Preview is camera

real time image. This must be called before capturing image or recording video.

Function Call:

bool StartPreview(int left, int top, int width, int height);

Parameter:

left: Left of preview position.

top: Top of preview position.

width: Width of preview size.

height: Height of preview size.

Return code:

TRUE: Success.

FALSE: Fail.

17.4 Stop Preview

Function Description:

Finish the preview. This must be called before starting playback

Function Call:

void StopPreview();

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Unitech PA982 Manuel d'utilisateur Page 96