Method for setting system default printer and invoking print file

Abstract

The invention discloses a method for setting a system default printer and invoking a print file. The method comprises the steps of: setting a default printer by means of printer names of different printers by adopting an API function provided by windows on the basis of C++; and then inputting a root directory file name of a to-be-printed file to invoke a system printer to print input files in theformats of doc, txt, pdf, jpg and the like. By means of the mode, the method can be suitable for printers of various types, can reduce development and debugging workloads, and reduces errors in development or use.

Description

technical field [0001] The invention relates to the field of bank-hospital self-service systems, in particular to a method for setting a system default printer and calling for printing files. Background technique [0002] In the bank-hospital autonomous system, various types of printers or receipt printers are often used to print hospital documents in various formats. If multiple controls are used to call, it is not only troublesome to use but also easy to confuse, which increases the implementation and development personnel. workload. [0003] The existing bank-hospital self-service system requires the manufacturer to provide the underlying interface or oid command for calling the printers of various models, and then carry out secondary development on this basis to generate corresponding printer controls, which not only increases the workload of development and implementation, but also reduces the As a result, the error rate increases. After using this method, you only nee...

AI Technical Summary

Problems solved by technology

[0002] In the bank-hospital autonomous system, various types of printers or receipt printers are often used to print hospital documents in various formats. If multiple controls are used to call, it is not only cumbersome to use but also easy to confuse, which increases the implementation and development personnel. workload

[0003] The existing bank-hospital self-service system requires the manufacturer to provide the underlying interface or oid command for calling printers of various models, and then carry out secondary development on this basis to generate corresponding printer controls, which not only increases the workload of development and implementation, but also reduces the As a result, the error rate increases. After using this method, you only need to install the system print driver provided by the manufacturer, which not only significantly reduces and reduces the workload and error rate of development, but also adapts to the requirements of most projects.

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