Delta-electronics DELTA DUP-B Manuel d'utilisateur télécharger pdf (Page 176)

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Chapter 3 Creating and Editing Screens

Revision May, 2010 3-155

Property Description of Real Image Element

(6) int hmAbortAction();

(7) int hmClose();

Example

4. Brief Explanation of the commands

(1) Command: int hmOpen(const COMM_INFO* pCommInfo);

Input Value: COMM_INFO structure

Return Value: 1: Succeeded , 0: Failed

Explanation: Enable HMI communication. Input the name

of COM Port, such as COM1, COM2 etc.

(2) Command: int SendImageFromFile(LPCTSTR szFileName);

Input Value: File name of the image

Return Value: 1: Succeeded , 0: Failed

Explanation: After converting the input image format into

the width and height of the element, and Bit value, the

system will start to transmit the image to HMI. This

command is a synchronous command. After the data

transmission to HMI is completed, this command will

return.

(3) Command: HANDLE hmAsyncSendImageFromFile(LPCTSTR

szFileName);

Input Value: File name of the image

Return Value: 0: Failed, none zero value: Thread Handle

Explanation: After converting the input image format into

the width and height of the element, and Bit value, the

system will start to transmit the image to HMI. This

command is an asynchronous command. The user can

perform relevant operation by using Thread Handle data.

(4) Command: int hmSendImage(HBITMAP hbmp);

Input Value: HBITMAP Handle in Window

Return Value: 1: Succeeded , 0: Failed

Explanation: After converting the input image format into

the width and height of the element, and Bit value, the

system will start to transmit the image to HMI. This

command is a synchronous command. After the data

transmission to HMI is completed, this command will

return.

(5) Command: HANDLE hmAsyncSendImage(HBITMAP hbmp);

Input Value: HBITMAP Handle in Window

Return Value: 0: Failed, none zero value: Thread Handle

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Delta-electronics DELTA DUP-B Manuel d'utilisateur Page 176

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